• Member of the Scientific Committee of the 5^th Panhellenic Conference “Planning and Regional Development”, Volos, 27-30 September 2018
• Member of the Scientific Committee of the 15^th Panhellenic Congress of ERSA-GR “Cities and Regions in a changing Europe: Challenges and Prospects”, Athens, 5-8 July 2017 (joint organization with the 54^th Congress of ASRDLF)
• Member of the Scientific Committee of the 3^rd International Conference “Changing Cities”, Syros – Delos – Mykonos, 26-30 June 2017
• Member of the Scientific Committee of the 2^nd Panhellenic Conference “Place Marketing and Branding”, Larissa, 31 March – 2 April 2017
• Member of the Scientific Committee of the 4^th Panhellenic Conference “Planning and Regional Development”, Volos, 24-26 September 2015
• Member of the Scientific Committee of the Conference «The Regional Labor Market of Last Crisis», Turin, 15-17 September 2011

• Member of the Editorial Team of “Αειχώρος” (2016 – …)
• Member of the Editorial Board of “Eastern European Business and Economics Journal” (2016 – …)
• Member of the Editorial Board of “International Journal of Economics and Finance Studies” (2016 – 2017)
• Member of the Editorial Team of the European Regional Science Association, Greek Section, Newsletter (ERSA-GR Newsletter) (2017 – …)

Projects (scientist responsible)

1. POS2COMI: Posting at Equal Rights for Equal Work and Fair Competition in the Metal Industry, DG Employment, Social Affairs and Inclusion, 01/02/2017 – 30/01/2019

 Projects (member of research teams)

1. IME: Small Enterprises’ Infirmary, OP Competitiveness, Entrepreneurship and Innovation, 01/01/2019 – 31/12/2019
2. VET4MIGRE: Vet Opportunities for Migrants and Refugees, ERASMUS +, 28/02/2018 – 31/05/2019
3. SUPREME: Supporting Maritime Spatial Planning in the Eastern Mediterranean, EASME, 04/07/2017 – 29/12/2017
4. The Role and the Prospects of Thessaloniki Port within the Framework of the Comprehensive Analysis regarding the Contribution of the Projects of Thessaloniki Port to the Economy of the Area, OLTH SA, 05/07/2016 – 16/09/2016
5. REPOS: Reformability of Political Systems in Times of Crisis: The Example of Financial Consolidation in German and Greek Municipalities, NSRF 2007-13, 04/07/2014 – 31/10/2015
6. DIGITAL CONVERGENCE: Creation of a Digital Observatory System for Geospatial Information and Regional Analyses, NSRF 2007-13, 01/11/2014 – 31/10/2015
7. INACT: An integrated Approach for Promoting Cross-Border Business and Development, INTERREG IIIB, 19/03/2014 – 15/06/2016
8. KALLIPOS: Advanced Central Services of HEAL-Link’s Open Access Digital Libraries, Greek Ministry of Education, 20/06/2014 – 25/11/2014
9. EUBORDERREGIONS: European Regions, EU External Borders and the Immediate Neighbors: Analyzing Regional Development Options through Policies and Practices of Cross-Border Cooperation, 7^th FP, 01/01/2012 – 30/04/2013
10. SEARCH: Sharing Knowledge Assets: Interregionally Cohesive Neighborhoods, 7^th FP, 01/08/2011 – 30/04/2013
11. Study for the Impact of the National Strategic Reference Framework Policies on the Income and the Employment of the Greek Regions, Greek Ministry of Development, Competitiveness and Shipping, 01/04/2012 – 31/10/2012
12. Study for the Impact of the Economic Crisis on the Economy of the Greek Regions, Greek Ministry of Development, Competitiveness and Shipping, 15/06/2011 – 15/09/2011
13. TERCO: European Territorial Cooperation as a Factor of Growth, Jobs and Quality of Life, ESPON, 16/2/2010 – 28/02/2011
14. Scientific Support for the Formulation of the Greek Proposal under the Reform of European Cohesion Policy, Greek Ministry of Economy, Competitiveness and Shipping, 01/06/2011 – 24/11/2012
15. PROMISE: Municipal Property Management in South Eastern Cities, South East Europe Transnational Cooperation Program, 01/01/2011 – 28/02/2011
16. The Impact of Serbia’s Integration with EU on the Autonomous Province of Vojvodina, Autonomous Province of Vojvodina, 01/09/2009 – 30/09/2010
17. Operational Plan for the Development of Technologic Parks at the Regional Levels, General Secretary of New Generation, 01/04/2009 – 01/12/2009
18. DYNREG: Dynamic Regions in a Knowledge-Driven Global Economy: Lessons and Policy Implications for the EU, 6^th FP, 01/01/2006 – 31/05/2006 and 01/01/2008 – 31/12/2008
19. Labor Market Survey and Employment Strategy in Thessaly Region, Region of Thessaly, 08/09/2008 – 08/12/2008
20. FUTOURISM: Integrated and Sustainable Development of Tourist Areas, 6^th FP, 01/11/2006 – 31/03/2007 and 01/04/2007 – 31/12/2007
21. Postgraduate Studies on Planning and Regional Development, EPEAEK, 01/09/2006 – 30/11/2006 and 01/04/2007 – 31/08/2007
22. Strategic Development Plan of Attiki, Prefecture of Attiki, 19/12/2005 – 03/05/2006
23. Regional Convergence and Divergence in Greece and in Enlarged European Union: Evaluation of Scientific Trends and Planning of Cohesion and Development Policies, Pythagoras II, 01/01/2005 – 31/12/2005
24. Strategic Development Plan of Northern Greece 2007-2013, Ministry of Macedonia and Thrace, 21/01/2005 – 15/12/2005
25. RIMED: Regional Integration and Metropolitan Development in Southeastern Europe, INTERREG III B CADSES, 01/11/2004 – 31/06/2005 and 01/07/2005 – 30/10/2005
26. EURECO: The Impact of European Integration and Enlargement on Regional Structural Change and Cohesion, 5^TH FP, 01/11/2002 – 31/10/2003, 01/11/2003 – 31/10/2004 and 01/11/2004 – 31/10/2005
27. Strategic Development Plan of Magnesia, Prefecture of Magnesia, 01/09/2004 – 30/06/2005
28. The Impact of EMU, University of Thessaly Department of Planning and Regional Development, 20/02/2002-19/02/2003
29. Local Development Program of Municipality of Sipiada, Municipality of Sipiada, 01/10/2002 – 31/12/2002
30. Massive Systems of Mild Development in Larissa, Municipality of Larissa, 13/11/2001 – 30/09/2002
31. Spatial and Development Impact of “Greece 2004” Project, Ministry of Culture, 01/04/2002 – 31/07/2002

Publications in Refereed Collective Volumes (Book Editions):

1. Psycharis Y., Kallioras D. and Psatha E. (2018), Political Resilience in Times of Economic Crisis and Local Government Reforms: The Case of the Municipality of Volos in Othengrafen F. and Serraos K. (eds): Urban Resilience, Changing Economy and Local Trends: Coping with Socioeconomic Consequences of the Crisis in Athens, Greece, Hannover: DruckTeam, 13-28.
2. Kallioras D., Psatha E. and Psycharis Y. (2018), Municipality of Volos in Chlepas N.-K. and Getimis P. (eds): Fiscal Consolidation in Local Government: Problems and Outlets under Crisis Conditions, Athens: Παπαζήσης, 234-251 (in Greek).
3. Psycharis Y., Kallioras D. and Pantazis P. (2018), Employment Changes and Regional Resilience: An Application of Trade-Adjusted Shift-Share Analysis to Greek Regions in Baycan T. and Pinto H. (eds): Resilience, Crisis and Innovation Dynamics, Cheltenham: Edward Elgar, 188-210.
4. Kallioras D., Pantazis P. and Psycharis Y. (2016), Spatial Variations of Employment in Greece during the Early-Crisis Period (2008-2010): The Resilience of the Greek Regions in Labrianidis L. Kalogeressis T. and Kafkalas G. (eds): Spatial Development and Human Dynamic: New Theoretical Approaches and their Application in Greece, Athens: Κριτική, 289-318 (in Greek).
5. Artelaris P. and Kallioras D. (2016), Regional Inequalities in the European Union in Petrakos G. and Psycharis Y. (eds): Regional Development in Greece, Athens: Κριτική, 33-64 (in Greek).
6. Topaloglou L., Petrakos G., Kallioras D., Artelaris P., Anagnostou A., Pantazis P., Cupcea V. and Georgiadis C. (2013), Territorial Cooperation in Greece-Bulgaria-Turkey Border Relations in Gorzelak and Zawalińska K. (eds): European Territories: From Cooperation to Integration, Warsaw: Wydawnictwo Naukowe Scholar Spółka, 248-264.
7. Kallioras D., Petrakos G. and Tsiapa M. (2010), The Emerging Economic Geography Setting in the New European Union Member-States: A Comparative Account of Regional-Industrial Performance and Adjustment in Marelli E. and Signorelli M. (eds): Economic Growth and Structural Features of Transition, New York: Palgrave / Macmillan, 150-169.
8. Petrakos G., Kallioras D. and Anagnostou A. (2008), Determinants of Industrial Performance in the EU-15 Countries in Psycharis Y. and Skayannis P. (eds): The Context, Dynamics and Planning of Urban Development: A Collection of Papers, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 33-49.
9. Petrakos G., Fotopoulos G. and Kallioras D. (2008), A Southern Perspective on Economic Integration and Structural Change: The Case of Greek Regions in Krieger-Boden C., Morgenroth E. and Petrakos G. (eds): The Impact of Economic Integration on Regional Structural Change and Cohesion, London: Routledge, 72-95.
10. Petrakos G, Anagnostou A. and Kallioras D. (2007), Determinants of Industrial Performance in the EU-15 Countries, 1980-2003 in Coccossis H. and Psycharis Y. (eds): ERSA 2006 “Enlargement, Southern Europe and the Mediterranean” Conference Proceedings: A Selection of Papers, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, A’: 229-244.
11. Petrakos G, Fotopoulos G. and Kallioras D. (2007), Peripherality and Integration: Industrial Growth and Decline in the Greek Regions in Coccossis H. and Psycharis Y. (eds): ERSA 2006 “Enlargement, Southern Europe and the Mediterranean” Conference Proceedings: A Selection of Papers, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, A’: 207-227.
12. Petrakos G. and Kallioras D. (2007), Integration and Structural Change: Pre-Accession Experience in the Regions of the EU New Member-States in Getimis P. and Kafkalas G. (eds): Overcoming Fragmentation in Southeast Europe: Spatial Development Trends and Integration Potential, Aldershot: Ashgate, 39-73.
13. Petrakos G., Psycharis Y. and Kallioras D. (2005), Regional Inequalities in the EU Enlargement Countries: An Analysis of Small versus Large New Member-States in Felsenstein D. and Portnov B. A. (eds): Regional Disparities in Small Countries, New York: Kluwer, 233-249.
14. Petrakos G., Psycharis Y. and Kallioras D. (2005), Regional Inequalities in the EU New Member-States: Evolution and Challenges in Bradley J., Petrakos G. and Traistaru I. (eds): Integration, Growth and Cohesion in an Enlarged European Union, New York: Springer, 45-64.

Petrakos G., Psycharis Y. and Kallioras D. (2004), Regional Inequalities in the EU Enlargement Countries in Petrakos G. and Psycharis Y. (eds): Regional Development in Greece, Athens: Κριτική, 157-178 (in Greek).

(Citations: 108 in Scopus; 633 in Google Scholar, Hirsch’s h-index: 5 in Scopus; 11 in Google Scholar)

Edition of Special Issues in Refereed Journals:

1. Deffner A.-M. and Kallioras D. (forthcoming), Planning and Regional Development: Young Scientists, Contemporary Trends, Αειχώρος (in Greek).
2. Deffner A.-M. and Kallioras D. (2016), Planning and Regional Development: Contemporary Trends, Young Scientists, Αειχώρος, 24 (in Greek).

Publications in Refereed Journals:

1. Artelaris P. and Kallioras D. (2018), The Context and Effectiveness of Regional Policy in the EU in Times of Economic Crisis, Γεωγραφίες, 32: 99-109 (in Greek).
2. Karanika M. and Kallioras D. (2018), EU Spatiality under Question – Territorial Cohesion in Danger, Territories, 1(1): 60-72.
3. Kallioras D., Duquenne M. N. and Vafeiadou S. (2018), Sigma-Convergence revisited, Region et Developpement, 47, 81-96.
4. Kallioras D., Monastiriotis V. and Petrakos G. (2018), Spatial Dynamics and Agglomeration Forces in the External EU Periphery, Annals of Regional Science, 60(3): 591-612.
5. Tsiapa M., Kallioras D. and Tzeremes N. G. (2018), The Role of Path-Dependence in the Resilience of EU Regions, European Planning Studies, 26(6): 1099-1120.
6. Monastiriotis V., Kallioras D. and Petrakos G. (2017), The Regional Impact of EU Association Agreements: An Event-Analysis Approach to the Case of Central and Eastern Europe, Regional Studies, 51(10): 1454-1468.
7. Kallioras D., Gkotinakou G. and Fardas M. (2017), Detecting Trends of Convergence among the Eurozone Countries in Terms of Economic Freedom, International Journal of Economics and Finance Studies, 9(1): 33-47.
8. Kallioras D. and Pinna A. M. (2017), Trade Activity between the EU and its Neighbors: Trends and Potential, Tijdschrift voor Economische en Sociale Geografie, 108(1): 36-51.
9. Metaxas T., Duquenne M. N. and Kallioras D. (2016), Small and Medium Sized Firms’ Competitiveness and Territorial Characteristics / Assets: A MLR Approach, Journal of Developing Areas, 50(4): 231-251.
10. Anagnostou A., Kallioras D. and Kollias C. (2016), Governance Convergence among the EU28? Social Indicators Research, 129(1): 133-146.
11. Petrakos G., Tsiapa M. and Kallioras D. (2016), Regional Inequalities in the ENP Countries: The Effects of Growth and Integration, Environment and Planning C: Government and Policy, 34: 698-716.
12. Kallioras D., Tsiapa M. and Zapantis S. (2016), Spatial Variations of Employment Change in Greece over the Early Crisis Period (2008-2011), Regional Science Inquiry, 13(1): 61-78.
13. Anagnostou A. Kallioras D. and Petrakos G. (2016), Integrating the Neighbors: A Dynamic Panel Analysis of the EU-ENP Countries Trade Relations, Comparative Economic Studies, 58(1): 17-42.
14. Kallioras D. and Tsiapa M. (2015), The Regional Dimension of Economic Growth in Ukraine, Eastern European Business and Economics Journal, 1(3): 71-95.
15. Kallioras D. and Pinna A. M. (2015), Economic Integration and Vulnerability in the EU Neighborhood, International Spectator, 50(3): 60-77.
16. Kallioras D. (2014), Proposing a Classification of Regions on the Basis of the Trade-Adjusted Shift-Share Analysis’ Results, Empirical Economics Letters, 13(12): 1285-1294.
17. Kallioras D. (2014), Trade Activity between the EU and the ENP Countries: A Relation of Trade Dependence? Empirical Economics Letters, 13(6).
18. Psycharis Y., Kallioras D. and Pantazis P. (2014), Economic Crisis and Regional Resilience: Detecting the “Geographical Footprint” of Economic Crisis in Greece, Regional Science Policy and Practice, 6(2): 121-141.
19. Kallioras D. (2012), The Notion of Resilience in Regional Science: Review and Decomposition, Περιφέρεια, 1(3): 37-58 (in Greek).
20. Kallioras D., Kandylis G., Kromydakis N. and Pantazis P. (2012), Delineation of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, Γεωγραφίες, 20: 99-116 (in Greek).
21. Artelaris P., Kallioras D., Karaganis P. and Petrakos G. (2012), Detecting Convergence and Divergence Sub-Clubs: An Illustrative Analysis for Greek Regions, Empirical Economics Letters, 11(8): 821-828.
22. Petrakos G., Fotopoulos G. and Kallioras D. (2012), Peripherality and Integration: Industrial Growth and Decline in the Greek Regions, Environment and Planning C: Government and Policy, 30(2): 347-361.
23. Petrakos G., Kallioras D. and Anagnostou A. (2011), Regional Convergence and Growth in Europe: Understanding Patterns and Determinants, European Urban and Regional Studies, 18(4): 375-391.
24. Artelaris P., Kallioras D. and Petrakos G. (2011), Income Inequalities among Greek Prefectures, 1995-2005: Investigation for the Existence of Convergence Clubs, Αειχώρος, 15: 42-67 (in Greek).
25. Artelaris P., Kallioras D. and Petrakos G. (2010), Regional Inequalities and Convergence Clubs in the European Union New Member-States, Eastern Journal of European Studies, 1(1): 113-133.
26. Fotopoulos G., Kallioras D. and Petrakos G. (2010), Spatial Variations in Greek Manufacturing Employment Growth: The Effects of Specialization and International Trade, Papers in Regional Science, 89(1): 109-133.
27. Kallioras D. (2010), Regional Inequalities in the New European Union Member-States: Is There a “Population Size” Effect? European Spatial Research and Policy, 17(2): 107-116.
28. Kallioras D. and Petrakos G. (2010), Industrial Growth, Economic Integration and Structural Change: Evidence from the European Union New Member-States Regions, Annals of Regional Science, 45: 667-680.
29. Kallioras D., Topaloglou L. and Venieris S. (2009), Tracing the Determinants of Economic Cross-Border Interaction in the European Union, Spatium International Review, 21: 1-10.
30. Kallioras D., Topaloglou L. and Venieris S. (2009), The “Border Effect” in Europe: Determinants of Cross-Border Interaction, Αειχώρος, 12: 56-81 (in Greek).
31. Metaxas T. and Kallioras D. (2007), Medium-Sized Cities’ Development and Regional Competitiveness: The Case of the Larissa-Volos Dipole in the Region of Thessaly, Greece, Επιθεώρηση Οικονομικών Επιστημών, 12: 115-136.
32. Petrakos G., Fotopoulos G. and Kallioras D. (2006), Regional-Industrial Patterns in the European Union New Member-States: Detailed Analysis for Bulgaria, Romania, Slovenia and Estonia, Papeles de Economia Española, 107: 160-175 (in Spanish).
33. Kallioras D. (2006), Regional Development Patterns in the European Union New Member States: The Heterogeneous Impact of Geography, Αειχώρος, 5(2): 46-67 (in Greek).
34. Topaloglou E., Kallioras D., Manetos P. and Petrakos G. (2005), A Border Regions Typology in the Enlarged EU, Journal of Borderlands Studies, 20(2): 67-89.
35. Petrakos G., Psycharis Y. and Kallioras D. (2004), Regional Inequalities in the EU Enlargement Countries, Τόπος, 22-23: 155-177 (in Greek).

Publications in Refereed Conference Proceedings

1. Kallioras D. (2013), Proposing an Index of Domination in an International Trade Relation: An Illustrative Analysis for Trade Activity conducted among the EU and the ENP Countries, Proceedings of the 8^th International Conference on Business and Economy, CD Edition.
2. Petrakos G., Artelaris P., Kallioras D. and Tsiapa M. (2013), The Geography of Trade between the EU and the ENP Countries: Emerging Patterns and Policy Recommendations, Proceedings of the 53^rd European Regional Science Association Congress: Regional Integration: Europe, the Mediterranean and the World Economy, CD Edition.
3. Petrakos G., Artelaris P., Kallioras D. and Tsiapa M. (2013), The Geography of Trade between the EU and the ENP Countries: Emerging Patterns and Policy Recommendations, Proceedings of the 11^th National Congress of the Greek Section of the European Regional Science Association: Agricultural Economy, Rural Space, Local and Regional Development, CD Edition.
4. Kallioras D., Artelaris P., Petrakos G. and Tsiapa M. (2013), The Geography of Trade between the EU and the ENP Countries, Proceedings of the XIV International Academic Conference on Economic and Social Development, CD Edition.
5. Psycharis Y., Artelaris P., Kallioras D., Pantazis P. and Tsiapa M. (2012), The Spatial Footprint of the Ongoing Economic Crisis in Greece: A Preliminary Assessment in Gospodini A., Gousios D., Kotzamanis B., Kungolos A., Beriatos E., Duquenne M.-N., Economou D., Skagiannis P. and Christopoulou O. (eds): Proceedings of the 3^rd Pan-Hellenic Conference of Planning and Regional Development, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας and Thessaloniki: Γράφημα, 967-973.
6. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), The Added Value of Territorial Cooperation Policies in Europe in Gospodini A., Gousios D., Kotzamanis B., Kungolos A., Beriatos E., Duquenne M.-N., Economou D., Skagiannis P. and Christopoulou O. (eds): Proceedings of the 3^rd Pan-Hellenic Conference of Planning and Regional Development, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας and Thessaloniki: Γράφημα, 25-30.
7. Psycharis Y., Artelaris P., Kallioras D., Pantazis P. and Tsiapa M. (2012), The Spatial Footprint of the Ongoing Economic Crisis (2009-…) in Greece: Assessing the Resilience and Development of the Greek Regions, Proceedings of the 52^nd European Regional Science Association Congress: Regions in Motion: Breaking the Path, CD Edition
8. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), Territorial Cooperation and Socioeconomic Development in the Old EU, New EU and Non-EU Member-States, Proceedings of the 52^nd European Regional Science Association Congress: Regions in Motion: Breaking the Path, CD Edition
9. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2011), Delineation of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, Proceedings of the 51^st European Regional Science Association Congress: New Challenges for European Regions and Urban Areas in a Globalized World, CD Edition
10. Artelaris P., Kallioras D., Topaloglou L. and Tsiapa M. (2011), Detecting the Growth Patterns of the EU Border Regions: A Convergence Clubs Approach, Proceedings of the 51^st European Regional Science Association Congress: New Challenges for European Regions and Urban Areas in a Globalized World, CD Edition
11. Artelaris P., Kallioras D. and Petrakos G. (2011), Convergence Clubs among the Greek Prefectures, 1995-2005 in Psycharis Y. and Photis Y. (eds): Proceedings of the 8^th National Congress of the Greek Section of the European Regional Science Association: Urban Development in Greece and the European Union, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 395-411 (in Greek)
12. Kallioras D., Topaloglou L. and Venieris S. (2011), The “Border Effect” in Europe: Driving Factors of Cross-Border Interaction in Psycharis Y. and Photis Y. (eds): Proceedings of the 8^th National Congress of the Greek Section of the European Regional Science Association: Urban Development in Greece and the European Union, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 379-393 (in Greek)
13. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2011), Definition of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, Proceedings of the 2^nd Pan-Hellenic Scientific Conference in Applied Economics, CD Edition, 290-299
14. Artelaris P., Kallioras D. and Petrakos G. (2010), Examining for the Existence of Regional Convergence Clubs in Greece, Proceedings of the 50^th European Regional Science Association Congress: Sustainable Regional Growth and Development in the Creative Knowledge Economy, CD Edition
15. Kallioras P., Petrakos G., Topaloglou L. and Tsiapa M. (2010), The Determinants of Growth in EU Border Regions, Proceedings of the 50^th European Regional Science Association Congress: Sustainable Regional Growth and Development in the Creative Knowledge Economy, CD Edition
16. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2010), Commuting-Based Delineation of Local Labour Markets in Greece, Proceedings of the 9^th Pan-Hellenic Meeting of the Hellenic Geographical Association, CD Edition, 359-365 (in Greek).
17. Artelaris P., Kallioras D. and Petrakos G. (2009), Examining the Possibility for the Emergence of Regional Convergence Clubs in Greece, Proceedings of the 1^st Pan-Hellenic Scientific Conference in Applied Economics, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 73-83
18. Artelaris P., Kallioras D., Petrakos G. and Tsiapa M. (2009), Convergence Clubs in the New European Union Member-States: An Empirical Evaluation of Neoclassical Theory under Quasi-Laboratory Conditions in Kotzamanis V., Kougolos A., Beriatos E., Economou D. and Petrakos G. (eds): Proceedings of the 2^nd Pan-Hellenic Conference of Planning and Regional Development, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 141-148
19. Petrakos G., Kallioras D. and Anagnostou A. (2008), Regional Growth in Europe, Proceedings of the 48^th European Regional Science Association Congress:  Culture, Cohesion and Competitiveness: Regional Perspectives, CD edition
20. Kotios A., Saratsis Y., Kallioras D. and Metaxas T. (2006), Balkans and Europe: Identifying Spatial Development Dimensions in Samathrakis V., Papadiodorou G., Vasiliadis S. and Tsitsis N. (eds): Proceedings of the 9^th International Conference of the Economic Society of Thessaloniki: Entrepreneurship, Competitiveness and Growth in South-Eastern Europe, Thessaloniki: Εκδόσεις Αλεξανδρείου ΤΕΙ Θεσσαλονίκης, 383-403.
21. Petrakos G., Psycharis Y. and Kallioras D. (2006), Regional Inequalities in the EU New Member-States, Proceedings of the International Conference on Consolidation of Statistical Systems of EU Candidate Countries, Volos: Πανεπιστημιακές Εκδόσεις Θεσσαλίας, 40-53.
22. Kallioras D. (2006), The Impact of Transition and Economic Integration on Manufacturing Employment Change: An Assessment for the Regions of the EU New Member-States, Proceedings of the 46^th European Congress of the European Regional Science Association – Enlargement, Southern Europe and the Mediterranean, CD edition.
23. Petrakos G., Anagnostou A. and Kallioras D. (2006), Determinants of Industrial Performance in the EU-15 Countries, 1980-2003, Proceedings of the 46^th European Congress of the European Regional Science Association: Enlargement, Southern Europe and the Mediterranean, CD edition.
24. Petrakos G., Fotopoulos G. and Kallioras D. (2006), Peripherality and Integration: Industrial Growth and Decline in the Greek Regions, Proceedings of the 46^th European Congress of the European Regional Science Association: Enlargement, Southern Europe and the Mediterranean, CD edition.
25. Metaxas T. and Kallioras D. (2006), Regional Competitiveness, Cities’ Economic Development and Choice of Location: An Empirical Investigation in Larissa-Volos Dipole in Samathrakis V., Papadiodorou G., Vasiliadis S. and Tsitsis N. (eds): Proceedings of the 9^th International Conference of the Economic Society of Thessaloniki: Entrepreneurship, Competitiveness and Growth in South-Eastern Europe, Thessaloniki: Εκδόσεις Αλεξανδρείου ΤΕΙ Θεσσαλονίκης, 539-562 (in Greek).
26. Kallioras D., Petrakos G., and Fotopoulos G. (2005), Economic Integration, Regional Structural Change and Cohesion in the EU New Member-States, Proceedings of the 45^th European Congress of the European Regional Science Association: Land Use and Water Management in a Sustainable Network Society, CD edition.
27. Artelaris P., Kallioras D., Pantazis P. and Petrakos G. (2004), The Economic Geography of Development of the EU New Member-States in Proceedings of the 7^th Pan-Hellenic Meeting of the Hellenic Geographic Association, New Raidestos: Λιθογραφία, B: 423-430 (in Greek).
28. Kallioras D., Fotopoulos G. and Petrakos G. (2004), Patterns of Regional Specialization and Sectoral Concentration of Industrial Activity in Bulgaria, Romania, Slovenia, Hungary and Estonia, Proceedings of the 44^th European Congress of the European Regional Science Association: Regions and Fiscal Federalism, CD edition.
29. Kallioras D., Petrakos G., Psycharis Y. and Artelaris P. (2004), Geography Matters: The Spatial Pattern of Development of Transition Countries, Proceedings of the 17^th European Regional Science Association Summer Institute: European Advanced Studies in Regional Science, CD edition.
30. Petrakos G., Psycharis Y. and Kallioras D. (2004), Patterns of Regional Development in the CEEC-10 in Proceedings of the 2^nd International Scientific Conference: Enlarged Europe and Regional Inequalities, Preveza: Εκδοτική, 213-233 (in Greek).

1. Economou G. and Kallioras D. (2018), Investigating the impact of wellbeing on economic performance: Evidence from European Union countries and regions, “5^th Panhellenic Conference of Natural Resources’ and Environmental Economics”, Volos, Greece, 02/11/2018 – 03/11/2018.
2. Artelaris P. and Kallioras D. (2018), Scrutinizing the framework for the implementation of regional policy in Greece under conditions of economic crisis, “5^th Panhellenic Conference of Planning and Regional Development”, Volos, Greece, 27/09/2018 – 30/09/2018.
3. Ntregkas I. (2018), Prospects for the transformation of Volos into smart city, “5^th Panhellenic Conference of Planning and Regional Development”, Volos, Greece, 27/09/2018 – 30/09/2018.
4. Kallioras D. (2018), The future of regional science, “58th European Regional Science Association Congress: Places for People: Innovative, Inclusive and Liveable Regions”, Cork, Ireland, 28/08/2018 – 31/08/2018 (invited speaker).
5. Kallioras D., Monastiriotis V., Petrakos G. και Tsiapa M. (2018), The utilization of structural funds as a learning process: Evidence from Greece, “58^th European Regional Science Association Congress: Places for People: Innovative, Inclusive and Liveable Regions”, Cork, Ireland, 28/08/2018 – 31/08/2018.
6. Karanika M. και Kallioras D. (2018), Territorial Cohesion: Past, present and future, “58^th European Regional Science Association Congress: Places for People: Innovative, Inclusive and Liveable Regions”, Cork, Ireland, 28/08/2018 – 31/08/2018
7. Kiakou A.., Gospodini A. and Kallioras D. (2018), The impact of urban sprawl on the outside-urban-planning zone land market, “Panhellenic Conference: Urban Regeneration and Development: Culture – Tourism – Real Estate”, Volos, Greece, 29/06/2018 – 30/06/2018.
8. Kallioras D. (2018), Spatial inequalities at the local level: The impact of agglomeration economies on economic growth, “Panhellenic Conference: Urban Regeneration and Development: Culture – Tourism – Real Estate”, Volos, Greece, 29/06/2018 – 30/06/2018 (invited speaker).
9. Karanika M. and Kallioras D. (2018), The double character of territorial cohesion on the framework of the “Europe 2020” Strategy”, “16th National Congress of the Greek Section of the European Regional Science Association – Strategies for Local and Regional Development: Contemporary Challenges”, Athens, Greece, 22/06/2018 – 23/06/2018.
10. Artelaris P. and Kallioras D. (2018), Scrutinizing the framework for the implementation of regional policy in Greece under conditions of economic crisis, “16th National Congress of the Greek Section of the European Regional Science Association – Strategies for Local and Regional Development: Contemporary Challenges”, Athens, Greece, 22/06/2018 – 23/06/2018.
11. Duquenne M. N., Kallioras D. and Vafeiadou S. (2017), Σ-Convergence revisited, “57^th European Regional Science Association Congress: Social Progress for Resilient Regions”, Groningen, the Netherlands, 29/08/2017-01/09/2017.
12. Monastiriotis V., Tselios V. and Kallioras D. (2017), Do International Academic Conferences help boost the Performance of Host Economies? Evidence from Europe, “57^th European Regional Science Association Congress: Social Progress for Resilient Regions”, Groningen, the Netherlands, 29/08/2017-01/09/2017.
13. Karanika M. and Kallioras D. (2017), Territorial Cohesion in the Course of Time, “57^th European Regional Science Association Congress: Social Progress for Resilient Regions”, Groningen, the Netherlands, 29/08/2017-01/09/2017.
14. Duquenne M. N., Kallioras D. and Vafeiadou S. (2017), Σ-Convergence revisited, “15th National Congress of the Greek Section of the European Regional Science Association – Cities and Regions in a changing Europe: Challenges and Prospects”, Athens, Greece, 05-07/07/2017.
15. Kallioras D., Pavleas S. and Alevra H. (2017), The Implementation of JESSICA Initiative in Greece, “15th National Congress of the Greek Section of the European Regional Science Association – Cities and Regions in a changing Europe: Challenges and Prospects”, Athens, Greece, 05-07/07/2017.
16. Kallioras D. (2017), Σ-Convergence Revisited, “DPRD Research and Staff Seminar”, Volos, Greece, 10/05/2017 (invited speaker).
17. Tziraki M. and Kallioras D. (2016), Correlation of Migration and Trade-Investment Flows between the European Union and the European Neighborhood Policy Countries, “14th National Congress of Cartography – Cartography in a Changing World”, Thessaloniki, Greece, 02-04/11/2016.
18. Lignou G., Kallioras D. and Stathakis D. (2016), Evaluation of per Capita GDP at the Spatial Level of Municipalities with the Use of Night-Time Satellite Images, “14th National Congress of Cartography – Cartography in a Changing World”, Thessaloniki, Greece, 02-04/11/2016.
19. Lignou G., Kallioras D. and Stathakis D. (2016), Evaluation of per Capita GDP at the Spatial Level of Municipalities: Application for the Greek Municipalities, “14th National Congress of the Greek Section of the European Regional Science Association – Productive Reconstruction and Regional Development”, Athens, Greece, 24-25/06/2016.
20. Kallioras D. (2016), Shift-Share Analysis and its Applications (2016), “Seminar of the Postgraduate Studies of the Department of Geography, Harokopio University”, Athens, Greece, 08/03/2016 (invited speaker).
21. Doxaki E., Kallioras D., Panteladis I. and Tsiapa M. (2015), The Economic Structures of the Greek Prefectures and the Idiosyncratic Characteristics of their Business Cycles, “4^th Panhellenic Conference of Planning and Regional Development”, Volos, Greece, 24-27/09/2015.
22. Artelaris P. and Kallioras D. (2015), Spatial Variations of Employment Changes over the Crisis-Period: The Method of Spatial Trade-Adjusted Shift-Share Analysis, “4^th Panhellenic Conference of Planning and Regional Development”, Volos, Greece, 24-27/09/2015.
23. Kallioras D., Psatha E. and Psycharis Y. (2015), Greek cities facing the Municipal Debt: The Case of Municipality of Volos, “13th National Congress of the Greek Section of the European Regional Science Association – Self-Governance, Local and Regional Development: Contemporary Perspectives”, Athens, Greece, 26-27/06/2015.
24. Petrakos G., Kallioras D. and Tsiapa M. (2014), Regional Inequalities in the ENP Countries: The Effects of Growth and Integration, “54^th European Regional Science Association Congress: Regional Development and Globalization: Best Practices”, St. Petersburg, Russia, 26-29/08/2014.
25. Ntarladima A. M., Kallioras D. and Petrakos G. (2014), Regional Inequalities and Regional Convergence Clubs in Russia, “54^th European Regional Science Association Congress: Regional Development and Globalization: Best Practices”, St. Petersburg, Russia, 26-29/08/2014.
26. Kallioras D., Panteladis Y. and Tsiapa M. (2014), Business Cycle Asymmetry and Regional Convergence: The Case of “sheltered” Economies in Greece, “54th European Regional Science Association Congress: Regional Development and Globalization: Best Practices”, St. Petersburg, Russia, 26-29/08/2014.
27. Ntarladima A. M., Kallioras D. and Petrakos G. (2014), Regional Inequalities and Regional Convergence Clubs in Russia, “AESOP Annual Congress: From Control to Evolution”, Utrecht, the Netherlands, 09-12/07/2014.
28. Kallioras D., Panteladis Y. and Tsiapa M. (2014), Business Cycle Asymmetry and Regional Convergence: The Case of “sheltered” Economies in Greece, “12th National Congress of the Greek Section of the European Regional Science Association – Urban and Regional Development: Contemporary Challenges”, Athens, Greece, 27-28/06/2014.
29. Psycharis Y., Kallioras D. and Pantazis P. (2014), Resilience of the Greek Prefectures amidst the Economic Crisis: Indications of Procyclicality? “12th National Congress of the Greek Section of the European Regional Science Association – Urban and Regional Development: Contemporary Challenges”, Athens, Greece, 27-28/06/2014.
30. Zapantis S., Kallioras D. and Petrakos G. (2014), Spatial Variations of Employment in Greece in the Early-Crisis Period, “12th National Congress of the Greek Section of the European Regional Science Association – Urban and Regional Development: Contemporary Challenges”, Athens, Greece, 27-28/06/2014.
31. Kallioras D. (2014), Regional Resilience in Greece in the Light of the on-going Economic Crisis, “Understanding Resilience Properties: An Experts Seminar”, Amsterdam, the Netherlands, 11/06/2014 (invited speaker).
32. Petrakos G., Artelaris P. and Kallioras D. (2014), Debt-Led Convergence in Europe, “The Greek Economy from Crisis to Development: Strategies, Concerns, Policies”, Volos, Greece, 04-05/04/2014.
33. Anagnostou A., Kallioras D. and Petrakos G. (2013), The Impact of Trade Relations among the EU and the ENP Countries on the Growth Performance of the ENP Countries, “53^rd European Regional Science Association Congress: Regional Integration: Europe, the Mediterranean and the World Economy”, Palermo, Italy, 27-31/08/2013.
34. Kallioras D., Petrakos G. and Artelaris P. (2013), The Determinants of Trade Activity among the EU and the ENP Countries, “53^rd European Regional Science Association Congress: Regional Integration: Europe, the Mediterranean and the World Economy”, Palermo, Italy, 27-31/08/2013.
35. Petrakos G., Artelaris P., Kallioras D. and Tsiapa M. (2013), The Geography of Trade Relations between the EU and the ENP Countries: Emerging Patterns and Policy Recommendations, “53^rd European Regional Science Association Congress: Regional Integration: Europe, the Mediterranean and the World Economy”, Palermo, Italy, 27-31/08/2013.
36. Petrakos G., Artelaris P. and Kallioras D. (2013), Debt-Led Convergence in Europe, “53^rd European Regional Science Association Congress: Regional Integration: Europe, the Mediterranean and the World Economy”, Palermo, Italy, 27-31/08/2013.
37. Petrakos G., Artelaris P., Kallioras D. and Tsiapa M. (2013), The Geography of Trade Relations between the EU and the ENP Countries: Emerging Patterns and Policy Recommendations, “11^th National Congress of the Greek Section of the European Regional Science Association – Agricultural Economy, Rural Space, Local and Regional Development”, Patras, Greece, 14-15/06/2013.
38. Petrakos G., Artelaris P. and Kallioras D. (2013), Debt-Led in Convergence in Europe, “11^th National Congress of the Greek Section of the European Regional Science Association – Agricultural Economy, Rural Space, Local and Regional Development”, Patras, Greece, 14-15/06/2013.
39. Kallioras D. (2013), Proposing an Index of Domination in an International Trade Relation: An Illustrative Analysis for Trade Activity conducted among the EU and the ENP Countries, “8th International Conference on Business and Economy”, Larissa, Greece, 08-10/06/2013.
40. Kallioras D. (2013), The Assessment of Spatial Inequalities: Methods, Techniques, Approaches, “Seminar of the Undergraduate Studies of the Department of Project Management, TEI of Larissa”, Larissa, Greece, 05/06/2013 (invited speaker).
41. Kallioras D. (2013), The Notion of Resilience in Regional Science, “Seminar of the Postgraduate Studies of the Department of Geography, Harokopio University”, Athens, Greece, 28/05/2013 (invited speaker).
42. Petrakos G., Artelaris P. and Kallioras D. (2013), Debt-Led Convergence in Europe, “3^rd Conference on Applied Economics”, Volos, Greece, 17-18/05/2013.
43. Kallioras D., Artelaris P., Petrakos G. and Tsiapa M. (2013), The Geography of Trade between the EU and the ENP Countries, “XIV International Academic Conference on Economic and Social Development”, Moscow, Russia, 02-05/04/2013 (invited speaker).
44. Psycharis Y., Artelaris P., Kallioras D., Pantazis P. and Tsiapa M. (2012), The Spatial Footprint of the Ongoing Economic Crisis in Greece: A Preliminary Assessment, “3^rd Pan-Hellenic Conference of Planning and Regional Development”, Volos, Greece, 27–30/09/2012.
45. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), The Added Value of Territorial Cooperation Policies in Europe, “3^rd Pan-Hellenic Conference of Planning and Regional Development”, Volos, Greece, 27–30/09/2012.
46. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), The Impact of Territorial Cohesion on Growth, Economic Flows and Networking in Old EU, New EU, and Non-EU Member-States, “2012 Association for Borderlands Studies European Conference – Borders and Borderlands: Today’s Challenges and Tomorrow’s Prospects”, Lisbon, Portugal, 12-15/09/2012.
47. Artelaris P., Kallioras D., Petrakos G. and Tsiapa M. (2012), The Geography of Trade in the ENP Area, “52^nd European Regional Science Association Congress: Regions in Motion: Breaking the Path”, Bratislava, Slovakia, 21-25/08/2012.
48. Psycharis Y., Artelaris P., Kallioras D., Pantazis P. and Tsiapa M. (2012), The Spatial Footprint of the Ongoing Economic Crisis (2009-…) in Greece: Assessing the Resilience and Development of the Greek Regions, “52^nd European Regional Science Association Congress: Regions in Motion: Breaking the Path”, Bratislava, Slovakia, 21-25/08/2012.
49. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), Territorial Cooperation and Socioeconomic Development in the Old EU, New EU and Non-EU Member-States, “52^nd European Regional Science Association Congress: Regions in Motion: Breaking the Path”, Bratislava, Slovakia, 21-25/08/2012.
50. Topaloglou L., Cupcea V., Kallioras D. and Pantazis P. (2012), Types, Domains and Driving Forces of Territorial Cooperation in the Old EU, New EU and Non-EU Neighboring Regions, “RISC Consortium Working Group: Comparative Border and Migration Politics”, Luxemburg, Luxemburg, 21-22/06/2012.
51. Topaloglou L, Cupcea V., Kallioras D. and Pantazis P. (2012), Searching for Relations between Spatial Cooperation and Spatial Development in Europe, “10^th National Congress of the Greek Section of the European Regional Science Association – Economic Crisis and Policies for Development and Cohesion”, Thessaloniki, Greece, 01-02/06/2012.
52. Psycharis Y., Artelaris P., Kallioras D., Pantazis P. and Tsiapa M. (2012), The Spatial Footprint of the Economic Crisis in Greece: A First Assessment, “10^th National Congress of the Greek Section of the European Regional Science Association – Economic Crisis and Policies for Development and Cohesion”, Thessaloniki, Greece, 01-02/06/2012.
53. Psycharis Y., Kallioras D., Artelaris P. Pantazis P. and Tsiapa M. (2011), The Impact of the Economic Crisis on the Greek Regions, “17^th European Colloquium on Quantitative and Theoretical Geography”, Athens, Greece, 02-05/09/2011.
54. Kallioras D., Kandylis G., Kromydakis N. and Pantazis P. (2011), Delineation of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, “51^st European Regional Science Association Congress: New Challenges for European Regions and Urban Areas in a Globalized World”, Barcelona, Spain, 30/08-03/09/2011.
55. Artelaris P., Kallioras D., Topaloglou L. and Tsiapa M. (2011), Detecting the Growth Patterns of the EU Border Regions: A Convergence Clubs Approach, “51^st European Regional Science Association Congress: New Challenges for European Regions and Urban Areas in a Globalized World”, Barcelona, Spain, 30/08-03/09/2011.
56. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2011), Delineation of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, “10^th National Congress of the Greek Section of the European Regional Science Association – Regional Development and Economic Crisis: International Experience and Crisis”, Athens, Greece, 06-07/05/2011.
57. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2011), Delineation of Local Labor Markets in Greece on the Basis of Travel-to-Work Flows, “2^nd Pan-Hellenic Scientific Conference on Applied Economics”, Volos, Greece, 14-15/04/2011.
58. Kallioras D., Kandylis Y., Kromydakis N. and Pantazis P. (2010), Commuting-Based Delineation of Local Labour Markets in Greece, “9^th Pan-Hellenic Meeting of the Hellenic Geographical Association”, Athens, Greece, 04-06/11/2010.
59. Topaloglou L., Kallioras D., Petrakos G. and Tsiapa M. (2010), Detecting the Parameters of Interaction and Development along the EU Border Space, “2010 Association for Borderlands Studies European Conference –The Multifaceted Economic and Political Geographies of Internal and External EU Borders”, Veria, Greece, 23–25/09/2010.
60. Kallioras D., Petrakos G., Topaloglou L. and Tsiapa M. (2010), The Determinants of Growth in EU Border Regions, “50^th European Congress of the European Regional Science Association – Sustainable Regional Growth and Development in the Creative Knowledge Economy”, Jonkoping, Sweden, 19–23/08/2010.
61. Artelaris P., Kallioras D. and Petrakos G. (2010), Examining for the Existence of Regional Convergence Clubs in Greece, “50^th European Congress of the European Regional Science Association – Sustainable Regional Growth and Development in the Creative Knowledge Economy”, Jonkoping, Sweden, 19–23/08/2010.
62. Kallioras D. (2009), Examining the Possibility for the Emergence of Convergence Clubs among the Prefectures of Greece, 1995-2005, “Seminar of the Postgraduate Studies of the Department of Planning and Regional Development, University of Thessaly”, Volos, Greece, 16/12/2009 (invited speaker).
63. Kallioras D., Topaloglou L. and Venieris S. (2009), Tracing the Determinants of Cross-Border Interaction in the European Union, “Regional Development, Spatial Planning and Strategic Governance Conference”, Belgrade, Serbia, 07–08/12/2009
64. Artelaris P., Kallioras D. και Petrakos G. (2009), Examining the Possibility for the Emergence of Regional Convergence Clubs in Greece, “1^st Pan-Hellenic Scientific Conference in Applied Economics”, Volos, Greece, 27-28/11/2009.
65. Artelaris P., Kallioras D., Petrakos G. και Tsiapa M. (2009), Convergence Clubs in the New European Union Member-States: An Empirical Evaluation of Neoclassical Theory under Quasi-Laboratory Conditions, “2^nd Pan-Hellenic Conference of Planning and Regional Development”, Volos, Greece, 24–27/09/2009.
66. Kallioras D. (2009), Determinants of Industrial Growth and Decline in the Greek Regions, “22^nd ERSA / 4^th PREPARE Summer School – Regional Growth Models: Advanced in Theory, Methodology and Empirical Analysis”, Volos, Greece, 03–12/07/2009.
67. Kandylis G. and Kallioras D. (2008), Commuting Flows and Urban Regional Development in Thessaloniki, “1^st Workshop of the Regional Studies Research Network on Geographical Localization, Intersectoral Reallocation of Labor and Unemployment Differentials – Geographical Localization and Economic Activity – Political Economic Aspects”, Thessaloniki, Greece, 31/10/2008.
68. Kallioras D. and Tsiapa M. (2008), Structural Aspects of EU Economic Integration: An Analysis at the Regional-Sectoral Level, “1^st Workshop of the Regional Studies Research Network on Geographical Localization, Intersectoral Reallocation of Labor and Unemployment Differentials – Geographical Localization and Economic Activity – Political Economic Aspects”, Thessaloniki, Greece, 31/10/2008.
69. Artelaris P., Kallioras D. and Petrakos G. (2008), Convergence Clubs among the Greek Prefectures, 1981-2005, “8^th National Congress of the Greek Section of the European Regional Science Association – Urban Development in Greece and the European Union”, Athens, Greece, 17-18/10/2008.
70. Kallioras D., Topaloglou L. and Venieris S. (2008), The “Border Effect” in Europe: Driving Factors of Cross-Border Interaction, “8^th National Congress of the Greek Section of the European Regional Science Association – Urban Development in Greece and the European Union”, Athens, Greece, 17-18/10/2008.
71. Petrakos G., Kallioras D. and Anagnostou A. (2008), Regional Growth in Europe, “48^th European Regional Science Association Congress – Culture, Cohesion and Competitiveness: Regional Perspectives”, Liverpool, UK, 27-31/08/2008.
72. Petrakos G., Kallioras D. and Anagnostou A. (2008), Regional Growth in Europe, “8^th Regional Studies Association International Congress – World Integration, Emerging and Lagging Regions, Sustainability”, Sao Paolo, Brazil, 17-19/03/2008.
73. Petrakos G., Psycharis Y. and Kallioras D. (2006), Regional Inequalities in the European Union New Member-States, “International Conference on: Consolidation of the Statistical Systems of EU Candidate Countries” Volos, Greece, 28-29/09/2006.
74. Petrakos G., Fotopoulos G. and Kallioras D. (2006), Peripherality and Integration: Industrial Growth and Decline in the Greek Regions, “46^th European Congress of the European Regional Science Association – Enlargement, Southern Europe and the Mediterranean”, Volos, Greece, 30/08 – 03/09/2006.
75. Petrakos G., Anagnostou A. and Kallioras D. (2006), Determinants of Industrial Performance in the EU-15 Countries, 1980-2003, “46^th Congress of the European Regional Science Association – Enlargement, Southern Europe and the Mediterranean”, Volos, Greece, 30/08 – 03/09/2006.
76. Kallioras D. (2006), The Impact of Transition and Economic Integration on Manufacturing Employment Change: An Assessment for the Regions of the European Union New Member-States, “46^th European Congress of the European Regional Science Association – Enlargement, Southern Europe and the Mediterranean”, Volos, Greece, 30/08 – 03/09/2006.
77. Kallioras D., Pavleas S. and Artelaris P. (2006), Metropolitan Development and Cooperation in Southeastern Europe, “1^st Round Table Meeting on Sustainable Housing and Urban Development in Southeastern Europe”, Sofia, Bulgaria, 24-25/03/2006.
78. Kallioras D., Petrakos G. and Fotopoulos G. (2005), Economic Integration, Regional Structural Change and Cohesion in the European Union New Member-States, “45^th Congress of the European Regional Science Association – Land Use and Water Management in a Sustainable Network Society”, Amsterdam, the Netherlands, 23-27/08/2005.
79. Kallioras D. (2005), Economic Integration, Structural Patterns, Income: Correlations and Interdependencies in the Regions of the European Union New Member-States, “Regional Economic Analyses’ Laboratory PhD Students Seminars”, Volos, Greece, 18/05/2005 (invited speaker).
80. Kallioras D., Petrakos G. and Psycharis Y. (2005), Regional and Structural Impact of the EU Enlargement on the EU New Member-States, “1^st Pan-Hellenic Conference in Planning and Regional Development – Contemporary Trends and Young Researchers”, Volos, Greece, 12-14/05/2005.
81. Artelaris P., Kallioras D., Pantazis P. and Petrakos G. (2004), The Economic Geography of Development of the New and the Under Accession EU Member-States, “7^th Pan-Hellenic Meeting of the Hellenic Geographical Association”, Mytilene, Greece, 14-17/10/2004.
82. Topaloglou L., Kallioras D. and Petrakos G. (2004), Borders and Integration in Enlarged EU: A “Border Typology, “2004 Association for Borderlands Studies European Conference – Borders in a New Europe: Between History and New Challenges”, Graz, Austria, 15-19/09/2004.
83. Kallioras D., Fotopoulos G. and Petrakos G. (2004), Patterns of Regional Specialization and Geographical Concentration of Industrial Activity in Bulgaria, Romania, Hungary, Slovenia and Estonia, “44^th Congress of the European Regional Science Association – Regions and Fiscal Federalism”, Porto, Portugal, 25-29/08/2004.
84. Kallioras D., Petrakos G., Psycharis Y. and Artelaris P. (2004), Geography Matters: The Spatial Pattern of Development of the European Union Accession Countries, “17^th European Regional Science Association Summer Institute – European Advanced Studies in Regional Science”, Split, Croatia, 28/07 – 04/07/2004.
85. Petrakos G, Psycharis Y. and Kallioras D. (2004), Patterns of Regional Development in the CEEC-10, “2^nd International Scientific Conference – Enlarged Europe and Regional Inequalities”, Preveza, Greece, 03-04/06/2004.
86. Petrakos G., Psycharis Y. and Kallioras D. (2003), Patterns of Regional Development in the EU Accession Countries, “3^rd Euro-Conference – The European City in Transition”, Weimar, Germany, 14–15/11/2003.
87. Metaxas T. and Kallioras D. (2003), Medium Sized Cities’ Development and Regional Competitiveness: The Case of the Larissa-Volos Dipole in the Region of Thessaly, Greece, “9^th Regional Studies Association International Conference – Reinventing Regions in a Global Economy”, Pisa, Italy, 12-15/04/2003.

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