1. Polyzos S., Tsiotas D., (2017) Analysis of Tourism Contribution to National and Economic Development, in Environmental Policy and Regional Development, Arampatzis G., Tampakis S., Manolas E., Tsiantopoulos G., Honorable Book to Professor Emeritus K. Soutsas, Orestias, DUTH Publications.
2. Polyzos S., (2017), Spatial and economic dimension of religious tourism in Greece, in Environmental Policy and Regional Development, Arampatzis G., Tampakis S., Manolas E., Tsiantopoulos G., Honorable Book to Professor Emeritus K. Soutsas, Orestias, DUTH Publications.
3. Polyzos S., Tsiotas D. (2012) “The Evolution and Spatial Dynamics of Coastal Cities in Greece”, in Urban Development, 275-296, Intech Publications, ISBN: 978-953-51-0442-1.
4. Polyzos S., Minetos D. (2012), “Deforestation dynamics: A review and evaluation of theoretical approaches and evidence from Greece” in Deforestation, 128-142, Intech Publisher.
5. Polyzos S., (2010), “Religious Tourism in Greece: Spatial Analysis and Contribution to the Development of Disadvantaged Areas”, in: Development of mountainous and less-favored areas, ed. G. Arampatzis, pp. 76-92, Periodical Edition of the Department of Forestry and Management of Environment and Natural Resources, DUTH.
6. Polyzos S., (2009), “Analysis of Contractual Relations and Economic Characteristics of Co-financed Projects” in “25 Texts on Space Planning and Development”, pp. 519-549, University of Thessaly.
7. Polyzos S., (2008), “Investigation of Infrastructure’s Contribution to Economic and Regional Development”, in “Dialogues on Space Planning and Development”, pp 351-382, KRITIKI Publications, Athens.
8. Filintas Α., Polyzos S., Dioudis P. (2008), “Agro-ecological Planning to Protect Soil and Water Resources”, in Natural Resources, Environment and Development, ed. Arampatzis, S. Polyzos, pp. 667-694, TZIOLAS Publications, Thessaloniki.
9. Filintas Α., Xatzopoulos I., Polyzos S., (2007), “Surface water quality evaluation using GIS and Geostatistical techniques”, in Natural Resources, Environment and Development, ed. Arampatzis, S. Polyzos, pp. 695-728, TZIOLAS Publications, Thessaloniki.
10. Polyzos S., (2007), “Spatial distribution of natural resources in Greece”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 107-120, TZIOLAS Publications, Thessaloniki.
11. Polyzos S., Minetos D. (2007), “Review of urban and regional land use quantitative methodologies”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos pp. 207-234, TZIOLAS Publications, Thessaloniki.
12. Polyzos S., Sofios S., (2007), “Water resources management and economic development of Thessaly”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 459-482, TZIOLAS Publications, Thessaloniki.
13. Bakopoulou S., Polyzos S., Kungolos A. (2007), “A review of decision-making methodologies in environmental and development problems”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 291-304, TZIOLAS Publications, Thessaloniki.
14. Bakopoulou S., Polyzos S.,., Kungolos A.. (2007), “Multi-criteria analysis as a key decision-making methodology in environmental and development problems”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 305-334, TZIOLAS Publications, Thessaloniki.
15. Sofios S., Polyzos S.,. (2007), “Large dams, economic and environmental impacts: overview of methodologies” in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 435-458, TZIOLAS Publications, Thessaloniki.
16. Minetos D., Polyzos S., (2007), “Urban and Regional Development and their Impact on Land Use Transformation: A Theories’ Critical Review”, in Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 55-83, TZIOLAS Publications, Thessaloniki.
17. Polyzos S., Minetos D. (2007), “The use of intelligent systems in analyzing land use changes”, in: Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 235-251, TZIOLAS Publications, Thessaloniki.
18. Polyzos S., Minetos D., (2007), “Urban and regional land uses: A critical review of statistical analysis methodologies”, in: Natural Resources, Environment and Development, ed. G. Arampatzis, S. Polyzos, pp. 21-53, TZIOLAS Publications, Thessaloniki.
19. Arampatzis G., Polyzos S., (2006), “Multi-criteria evaluation of the tourist attractiveness of the continental prefectures of Greece”, in: “Innovative Applications in the Agricultural Sector and the Environment”, Volume of Scientific Papers, pp.. 23-39, EPEGE, Thessaloniki.
20. Polyzos S., Petrakos G., (2005), “Evaluating Regional Policy in Greece Using Regional Multipliers”, in: “ Contemporary approaches to the Greek economy”, ed. Ch. Kollias, Ch. Naxakis, M. Chletsos, pp. 269-303, Pataki Publications, Athens.
21. Petrakos G., Polyzos S., (2005), “ Regional Inequalities in Greece: An Overview of Theories and Inequalities Estimation”, in: “Contemporary approaches to the Greek economy”, ed. Ch. Kollias, Ch. Naxakis, M. Chletsos, pp. 185-216, Pataki Publications, Athens.

1. Krampokoukis T., Polyzos S. (2022), Drawing an Indicator of Tourism Competitiveness and examining the relationship with Tourism Seasonality for the Greek Prefectures, Regional Science Inquiry, vol. ΧIV, N. 2 (forthcoming).
2. Tsiotas D., Axelis N., Polyzos S. (2022), Detecting city dipoles in Greece based on Intercity commuting, Regional Science Inquiry, vol. XIV, pp. 11-30.
3. Kranioti A., Tsiotas D., Polyzos S. (2022), The Topology of Cultural Destinations’ Accessibility: The Case of Attica, Greece, Sustainability, vol. 14, pp. 1-23 https://doi.org/10.3390/su14031860
4. Tsiotas D., Axelis N., Polyzos S. (2021), A methodological framework for defining city dipoles in urban systems based on a functional attribute, Cities, vol. 119, pp 103387.
5. Tsiotas, D., Krabokoukis, T., Polyzos, S. (2021). Detecting Tourism Typologies of Regional Destinations Based on Their Spatio-Temporal and Socioeconomic Performance: A Correlation-Based Complex Network Approach for the Case of Greece. Tourism and Hospitality, 2(1), pp. 113-139.
6. Krabokoukis, T., Tsiotas, D., Polyzos, S. (2021). Examining the Relationship Between Tourism Seasonality and Saturation for the Greek Prefectures: A Combined Operational and TALC-Theoretic Approach. In Culture and Tourism in a Smart, Globalized, and Sustainable World, pp. 171-184, Springer, Cham.
7. Tsiotas, D., Polyzos, S. (2021). Making the Web-Science operational for interregional commuting analysis: Evidence from Greece. Journal of the Knowledge Economy, 12(2), 1-14.
8. Tsiotas D. Krampokoukis T. Polyzos S. (2021), Detecting Determinants in Tourist Seasonality in Greece: A binary Logistic Regression Approach, Theoretical and Empirical Researches in Urban Management, Volume 16 Issue 1, pp. 5-19.
9. Krampokoukis T. Polyzos S. (2020), Examining the relationship between Tourism seasonality and Tourism Carrying Capacity indexes for the Greek Prefectures, MIBES Transaction, An International Journal, vol 14, Issue 1, pp. 56- 65
10. Polyzos S. (2020), Investigation of the Structural Changes of the Greek Economy during the Economic Crisis using Input – Output Analysis, Aeichoros, vol. 31: pp. 23-61.
11. Polyzos S., Tsiotas D. (2020), Measuring Structural Changes of the Greek Economy during the period of Economic Crisis, Management Research and Practice, Vol. 12(2), pp. 5-24
12. Krampokoukis T. Polyzos S. (2020), An Investigation of Factors Determining the Tourism Attractiveness of Greece’s Prefectures, Journal of the Knowledge Economy doi.org/10.1007/s13132-020-00704-7
13. Krampokoukis T. Polyzos S. (2020) Spatial inequalities of tourist activity in Greece: a Shift-Share analysis, Anatolia, doi.org/10.1080/ 13032917.2020.1851271
14. Tsiotas D. Krampokoukis T. Polyzos S. (2020), Detecting interregional patterns in tourism seasonality of Greece: A principal components analysis approach, Regional Science Inquiry, vol. XII(2), pp. 91-112.
15. Stefanouli, M., Polyzos S. (2020) “Analysis of commuting in Attica”, TeMA – Journal of Land Use, Mobility and Environment, pp. 21-40.
16. Polyzos S., Tsiotas D. (2020), The contribution of transport infrastructures to the economic and regional development: a review of the conceptual framework Theoretical and Empirical Researches in Urban Management, Vol. 1(5), pp. 5- 23.
17. Polyzos S., Tsiotas D. (2019), Regional airports in Greece, their characteristics and their importance for the local economic development, PRIME, Vol 12(1), pp. 14-34.
18. Pnevmatikos T., Polyzos S., Tsiotas D. (2019), Assessing the structural changes in the Greek Economy for the period prior to economic crisis, Regional Science Inquiry, ΧI, n. 3, (forthcoming).
19. Tsiotas, D., Niavis, S., Polyzos, S., Papageorgiou, A., (2019) “Introducing a pair of measures for capturing the dynamics of airports inregional and tourism development: evidence from Greece”, Journal of AirTransport Studies [forthcoming].
20. Polyzos, S.. (2019), Theoretical analysis of transport infrastructures contribution to regional development, Aeichoros, vol. 28, pp. 14-39.
21. Polyzos S., (2019), Transport infrastructures, Networks and Development, Aeichoros, vol. 28, pp. 4-13.
22. Tsiotas, D., Polyzos, S., (2018) “Effects in the network’s topology due to node aggregation: empirical evidence from the maritime transportation network in Greece”, Physica A, 491C, pp. 71-88.
23. Tsiotas, D., Polyzos, S., (2018) “The complexity in the study of spatial networks: an epistemological approach”, Networks and Spatial Economics, 18(1), pp. 1–32.
24. Kalantzi O., Tsiotas D., Polyzos S., (2016), The Contribution of Tourism in National Economies: Evidence of Greece, European Journal of Business and Social Sciences, Vol. 5(5), pp. 41 – 64.
25. Tsiotas, D., Polyzos, S., (2017) “The topology of urban road networks and its role to urban mobility”, Transportation Research Procedia, 24C, pp. 482–490.
26. Stefanouli, M., Polyzos, S., (2017) “Gravity vs radiation model: two approaches on commuting in Greece”, Transportation Research Procedia, vol. 24, pp. 65-72.
27. Polyzos S, Tsiotas D. Niavis S. (2015), Analyzing the location decisions of agro-industrial investments in Greece, International Journal of Agricultural and Environmental Information Systems, vol. 6(2), pp 77-100.  
28. Tsiotas D., Polyzos S. (2015), “Making the Web-Science Operational for Interregional Commuting Analysis: Evidence from Greece”, Journal of the Knowledge Economy, pp. 1-14, doi: 10.1007/s13132-015-0269-0.
29. Geraki M., Polyzos S. (2015), “Public Spending allocation factors for Alternative Tourism Investment Program NSFR 2007-2013. Evidence from Greece, MIBES Transactions, pp. 63-76.
30. Stefanouli M. Polyzos S. (2015), Factors determining Commuting Intensity; an Empirical Analysis in Greece, MIBES Transactions, 430-447.  
31. Saratsis G., Polyzos S. (2015), “Tourist Capacity and Life Cycle of Tourist Areas: The Case of Magnesia Prefecture”, Aeichoros, vol. 21, pp, 82-106.
32. Tsiotas D., Polyzos S. (2015), “Decomposing multilayer transportation networks using complex network analysis: A case study for the Greek aviation network”, Journal of Complex Networks, doi:10.1093/comnet/cnv003.
33. Tsiotas D., Polyzos S. (2015), “Analyzing the Maritime Transportation System in Greece: a complex Network approach”, Networks and Spatial Economics, vol. 15(4): 981-1010.
34. Polyzos S, Tsiotas D. Papagiannis K. (2014), Determining the changes in commuting after the Ionian Motorway’s construction, MIBES Transactions International Journal, vol.8, pp. 113-131.
35. Tsiotas D. Polyzos S, Anastasiou A. (2014), Rank-Size distribution of Greek cities: a Regional Analysis MIBES Transactions International Journal, 8, pp. 164-173.
36. Polyzos S, Niavis S. (2013), “Spatial Analysis of Religious Tourism in Greece”, Tourism Today, 13, pp. 79-93.
37. Polyzos S, Saratsis Y. (2013), “Analyzing the evolution of tourism in Magnesia under the prism of the Tourism Area Life Cycle Theory”, Tourism Today, 13, pp. 94-113.
38. Polyzos S., Niavis S. (2013) ‘Evaluating port efficiency in the Mediterranean’, J. Data Analysis Techniques and Strategies, 5(1): pp. 84-100.
39. Polyzos S, Tsiotas D., Minetos D. (2013), “Determining the Driving Factors of Commuting: An Empirical Analysis from Greece”, Journal of Engineering Science and Technology Review, vol.  6(3), pp. 46 -55.
40.  Polyzos S., Tsiotas D., Sdrolias L. (2013), “Greek regional productivity at the period of the economic crisis: obtaining information by using Shift–Share analysis”, MIBES Transactions International Journal, vol. 7, pp. 92-109.
41. Polyzos S., Tsiotas D., Kantlis A. (2013), “Determining the Tourism Development Dynamics of the Greek Regions by using TALC Theory”, TOURISMOS, vol. 8(2), pp. 159-178.
42. Pnevmatikos T., Niavis S. Polyzos S. (2013), “Regional multipliers and economic crisis: the case of Greek economy”, MIBES Transactions International Journal, vol 7, pp. 79-91.
43. Geraki M., Polyzos S. Sdrolias L. (2013), “Regional Prosperity and Public Investment Distribution in Greece” MIBES Transactions International Journal, vol 7, pp. 25-39.
44. Polyzos S, Anastasiou, A., Geraki M., (2013), The development path of small towns in Greece; . «Η αναπτυξιακή πορεία των μικρών πόλεων στην Ελλάδα», PRIME International Journal, vol. 6, pp. 138-156.
45. Tsiotas D., Polyzos S. (2013), “Introducing a new centrality measure from the transportation network analysis in Greece”, Annals of Operations Research, August 01,  pp. 1-25,
46. Polyzos S., Minetos D. (2013), “Informal housing in Greece: A multinomial logistic regression analysis at the regional level”, European Spatial Research and Policy, 20(2), pp. 57-85.
47. Polyzos S., Minetos D. Niavis S. (2013), “Driving factors and empirical analysis of urban sprawl in Greece”, Theoretical and Empirical Researches in Urban Management Journal, 8(1), pp. 5-29.
48. Polyzos S., Minetos D., Tsiotas D. (2012), “Illegal housing in Greece: Determinants and evolutionary patterns” PRIME International Journal, 5, pp. 115-131.
49. Pnevmatikos T., Polyzos S., (2012), “Analysis of diachronic stability of technological factors of input-output analysis in the Greek economy”, PRIME International Journal, vol 5, pp. 103-114.
50. Polyzos S., Niavis S., Pnevmatikos T. (2012), “Longitudinal Evaluation of Greek Regional Policies Using Window Data Envelopment Analysis” (2012), MIBES Transactions International Journal, vol. 6. 53-65.
51. Tsiotas, D., Polyzos, S., (2012), “Analysis of regional disparities in unemployment rates in Greece using the Theil index”, Aeichoros, vol. 17, pp. 64-81.
52. Tsiotas D., Polyzos S. (2012), “The contribution of ANN’s simple perceptron pattern to inequalities measurement in Regional Science”, Operational Research: An International Journal, vol. 13(2), pp. 289-301.
53. Polyzos S., Pnevmatikos T. (2011), “Evaluation of Regional Inequalities by using Shift – Share Analysis”, International Journal of Engineering and Management, vol. 3(2), pp. 77-89.
54. Tsiotas D., Polyzos S. (2011), “Introducing an Inequalities Index from the Simple Perceptron Pattern in ANN: An unemployment inequalities application in Regional Economics” Journal of Engineering Science and Technology Review, vol. 4(3), pp. 291-296.
55. Polyzos S., Minetos D. (2011), “An Ordinal Regression Analysis of Tourism Enterprises’ Location Decisions in Greece”, Anatolia, vol. 22(1), pp. 102–119.
56. Polyzos S., Christopoulou O. (2010), «Une investigation de la relation entre les Ressources Naturelles et le Développement Régional en Grèce», New Medit, Mediterranean Journal of Economics, Agriculture and Environment, vol. 4, pp. 19-30.
57. Minetos D., Polyzos S. (2010), “Deforestation processes in Greece: A spatial analysis by using an ordinal regression model”, Forest Policy and Economics, vol. 12, pp. 457-472.
58. Bakopoulou S., Polyzos S., Kungolos A. (2010), “Investigation of farmers’ willingness to pay for using recycled water for irrigation in Thessaly region, Greece”, Desalination, vol. 250, pp. 329-334.
59. Polyzos S. (2009), “The Egnatia Motorway and the changes in the Interregional Trade in Greece: An ex ante assessment”, European Spatial Research and Policy, vol. 16(2), pp. 23-47.
60. Minetos D., Polyzos S. (2009) “Review of Multivariate statistical methodologies for testing hypotheses of land use change”, Journal of Environmental Protection and Ecology 3, pp. 834-866.
61. Sofios S., Polyzos S. (2009), “Water resources in Thessaly Region, Greece and their impact on regional development“, Journal of Environmental Protection and Ecology, vol. 1, pp. 244-265.
62. Minetos D., Polyzos S. (2009) “Analysis of Agricultural land uses transformation in Greece: A multinomial regression model at the regional level”, International Journal of Sustainable Planning and Development, vol. 4(3), pp. 189-209.
63. Polyzos S. (2009), “Regional Inequalities and Spatial Economic Interdependence: Learning from the Greek Prefectures”, International Journal of Sustainable Development and Planning, vol. 4(2), pp. 123-142.
64. Polyzos S., Minetos D. (2009), “Informal housing in Greece: A quantitative spatial analysis”, Theoretical and Empirical Researches in Urban Management Journal, 2(11), pp. 7-33.
65. Tsakistara D., Sdrolias L., Polyzos S., Kakkos N. (2009), “Analysis of Greek milk market: revealing a cartel? Quo vantis?”, Management of International Business & Economic Systems Transactions, vol. 3, pp. 137-151.
66. Polyzos S., Minetos D. (2008), “Spatial analysis of differences in variation of building activity in Greece“, Management of International Business & Economic Systems Transactions, vol. 2, pp. 115-130.
67. Polyzos S, (2008), “Migration flows to Greece: Analysis of determinants, typology of host regions and countries of origin”, Aeichoros, vol. 2(3), pp. 68-103.
68. Polyzos S., Arabatzis G. (2008), “Determinants factors of tourist attractiveness of Greek prefectures”, International Journal of Sustainable Development and Planning, 3(4), pp. 343-366.
69. Arabatzis G., Polyzos (2008), “The contribution of Natural and Socio-cultural Resources in Tourism Development of mainland Greek Prefectures: A typology”, Journal of Environmental Protection and Ecology, 9(2), pp. 446-464.
70. Minetos D., Polyzos S. Sdrolias L.(2007), “Features and Spatial Analysis of Illegal Housing in Greece”, Management of International Business & Economic Systems Transactions, 1(1), pp. 86-107.
71. Polyzos S., Sofios S. (2008), “Regional multipliers, Inequalities and Planning in Greece”, South Eastern Europe Journal of Economics, vol. 6(1), 75-100.
72. Christopoulou O., Arabatzis G., Polyzos S. (2007), “Ski Resort and Regional Development: Profile of Visitors and Appraisal of Demand in Parnassos Ski – Resort”, Tourism Today, Fall, pp. 150-167.
73. Polyzos S., Arabatzis G. (2008), “Spatial distribution of natural resources and their contribution to regional development”, Journal of Environmental Protection and Ecology, 9(1), pp. 183-198.
74. Polyzos S., Minetos D. (2007), “Valuing environmental resources in the context of flood and coastal defence project appraisal: A case-study of Poole Borough Council seafront in the UK”, Management in Environmental Quality, An International Journal, vol. 18(6), pp. 684-710.
75. Arabatzis, Polyzos S., Tsiantikoudis S. (2007), “The Carrying Capacity of Mountainous Tourist Areas: the case of Plastira’s Lake”, Tourism Today, Fall, pp. 109-124
76. Arabatzis G. Polyzos S. (2007) “The Impacts of the CAP on Land Uses and the Forest Development: The Case of Greece”, European Spatial Research and Policy, 14, pp. 89-106.
77. Polyzos S., Arabatzis G., Tsiantikoudis S. (2007), “The Attractiveness of Archaeological Sites in Greece: A Spatial Analysis”, International Journal of Tourism Policy and Research, 1(3), pp. 246-266.
78. Sdrolias L., Polyzos S., Pappas N., Vounatsou M. (2006), “Cooperative Strategies of entry in the International Market between the Greek Enterprises”, Society and Economy 28(3), pp. 267–285.
79. Christopoulou O., Polyzos S., Minetos D. (2007), “Peri-urban and Urban Forests in Greece: Obstacle or Advantage to Urban Development”, Management in Environmental Quality, An International Journal, vol. 18(4), pp. 382-395.
80. Polyzos S., Minetos D., Sdrolias L. (2007), “Productivity and spatial diffusion of technology in Greece: An empirical analysis”, Journal of International Business and Economy, v 8(1), pp. 105-123.
81. Polyzos S., Sdrolias L., Koutseris E. (2008), “Enterprises’ locational decisions and Interregional Highways: An empiric investigation in Greece”, Acta Geographica, vol. 48(1), pp. 147–168.
82. Polyzos S, Christopoulou O., Minetos D., Filho W. L. (2007), “An overview of urban-rural land use interactions in Greece”, Journal of Agricultural Resources, Governance and Ecology, Vol. 7(3), pp. 276-296.
83. Polyzos S., Arabatzis G. (2006), “A multicriteria approach for the evaluation of tourist resources of Greek prefectures”, Tourism Today, 6, pp. 96-111.
84. Polyzos S., Sdrolias L. (2006), “Strategic Method of Confrontation of Tourist Competition: The Case of Greece”, Journal of Travel and Tourism Research, vol. 6(1), pp. 12-28.
85. Polyzos S., (2006) “Public investments and Regional Development: The role of Regional Multipliers”, International Journal of Sustainable Planning and Development, 1(3), pp. 1-16.
86. Polyzos S., Arabatzis G. (2006), “Labor productivity of agricultural sector in Greece: determinant factors and interregional differences analysis” New Medit, Mediterranean Journal of Economics, Agriculture and Environment, vol. 1, pp. 58-64.
87. Polyzos S., Petrakos G., Arabatzis G.., Soutsas K. (2005), “Natural Resources and Regional Inequalities in Greece”, GEOTECHNICAL SCIENTIFIC ISSUES, vol. 16(3), pp. 63-79.
88. Polyzos S. (2005), “Public Works, Investments and their Regional Economic Effects”, Operational Research, vol. 4(3), pp. 373-388.
89. Polyzos S. (2005), “Trade Changes in a Model of Spatial Interaction”, REVIEWS OF ECONOMIC SCIENCES, vol. 7, pp. 89-104.
90. Polyzos S. (2003), “Optimizing the cost of occupational accidents”, LABOR RELATIONS REVIEW 32, pp. 85-93.
91. Polyzos S. (2003), Interregional transportation Infrastructures and Regional Development: A theoretical investigation” TOPOS, vol. 20-21, pp. 25-49.
92. Sdrolias L., Terzidis K., Polyzos S.. (2003), Psychological Alienation of Business Personnel from Working Environment, REVIEWS OF ECONOMIC SCIENCES, vol. 3, pp. 101-118.
93. Polyzos S. (2003), “Labor productivity and Spatial Economic Inequalities”, LABOR RELATIONS REVIEW, vol. 29, pp. 29-49.
94. Polyzos S. Σδρόλιας Λ. (2002), “Characteristics and Specificities of Working Conditions in the Technical Projects: A general Analysis” LABOR RELATIONS REVIEW, vol. 25, pp. 47-59.
95. Polyzos S. (2002), “Infrastructure and Spatial Economic Changes: A Methodological Approach”, ΔΙΟΙΚΗΤΙΚΗ ΕΝΗΜΕΡΩΣΗ, 23, pp. 98-110.
96. Polyzos S. (2002), “Determinant Factors Analysis and Empirical Investigation of Domestic Tourist Flows in Greece”, TOPOS, vol. 18-19, pp. 87-108.
97. Polyzos S. (2001), “Strategic Management Proposals for Greek Enterprises in the Balkans: A General Approach”, ADMINISTRATIVE REVIEW,   21, pp. 5-19.
98. Polyzos S. Petrakos G Γ (2001), “Enterprises’ Location in Greece: Determinant Factors Analysis and Empirical Investigation”, TOPOS, vol. 17, pp. 93-123.
99. Polyzos S. (2001), “Interregional Highways and Spatial Economic Changes: A Methodological Approach”, TECHNICAL CHRONIKA Scientific Publication of TCG, ΙΙ, vol. 1&2, pp. 21-43.
100. Polyzos S., Petrakos G. (2000), “Interregional Distances and Productivity of Regions: An Empirical Approach”, TECHNICAL CHRONIKA Scientific Publication of TCG, ΙΙ, vol. 1-2, pp. 59-68.
101. Polyzos S., Petrakos G. (2000), “Impact of Interregional Highways on Trade: A Methodological Approach”, TECHNICAL CHRONIKA Scientific Publication of TCG, ΙΙ, vol. 1-2, pp. 47-58.

1. Makrides Ε., Tsiotas D., Polyzos S. (2022), Assessing the adequacy of urban public entertainment spaces to cover emergency conditions: A case study of the Municipality of Thessaloniki, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, 29/9/2022 – 2/10/2022).
2. Polyzos S., Karali Α. (2022), The supply chain in the execution of construction projects: A methodological approach, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
3. Krampokoukis T., Polyzos S., (2022), Tourism Seasonality and Hotel Capital CostProceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
4. Tseperkas C., Polyzos S. (2022), Regional distribution of investment and economic efficiency: A methodological approach, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
5. Ntailinais P, Polyzos S., Niavis S. (2022), Development of a classification framework for smart port operations and its application to determine the development directions of port authorities, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
6. Grigorouli Α., Polyzos S. (2022), Application model of the circular economy in the construction sector, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
7. Papadimitriou B., Polyzos S. (2022), RES Project evaluation using the Real Options methodology, Proceedings of the 6th National Conference on Urban Planning, Spatial Planning and Regional Development, (Volos, 29/9/2022 – 2/10/2022).
8. Tsiotas, D., Krabokoukis, T., Polyzos, S. (2020), Examining the relationship between tourism seasonality and saturation for the Greek prefectures: A combined operational and TALC- theoretic approach, 7th International Conference on “Culture and Tourism in a Smart, Globalized and Sustainable World”, https://www.researchgate.net /publication/344332059.
9. Ladopoulos I., Petroutsatou K., Polyzos S. (2020), Comparative Analysis of Methodologies for Calculating the Economic Life of Construction Equipment, Proceedings of 10th International Conference on Engineering, Project, and Production Management, pp 187-196.
10. Tsiotas, D., Niavis, S., Polyzos, S., (2018) “The Dynamics of Small and Peripheral Airports in Tourism and Regional Development: The Case of Greece”, International Conference on Strategic Innovative Marketing and Tourism (IC-SIMAT 2018), Athens- Greece, 17-20 October 2018.
11. Niavis S., Polyzos S., Diso S., Karelos Ch. Chatzikosti E., (2018), “ Using Multicriteria Decision Analysis to evaluate alternative ports based on their contribution to the local community: The case of the port of Volos”, Proceedings of the 16th Conference of the Hellenic Section of the ERSA, 22-23 July, Athens.
12. Stefanouli M., Polyzos S. (2018), “Identification of Communities of daily commuting network for work in Greece”, Proceedings of the 5th National Conference on Planning and Regional Development, Volos, 27-30/9/2018.
13. Zakynthinou A., Polyzos S. (2018), “Regional Competitiveness in Greece”, Proceedings of the 5^th National Conference on Planning and Regional Development, Volos, 27-30/9/2018.
14. Bakalakou S., Polyzos S., Tsiotas D. (2018), “Analysis of determinants of spatial attractiveness of the Greek prefectures”, Proceedings of the 5^th National Conference on Planning and Regional Development, Volos, 27-30/9/2018.
15. Krabokoukis Th. Polyzos S., Tsiotas D. (2018), “Analysis of determinants of tourist attractiveness of Greek prefectures: Proceedings of the 5^th National Conference on Planning and Regional Development, Volos, 27-30/9/2018.
16. Raptopoulos K., Polyzos S., Niavis S. (2018), “Evaluation of the effectiveness of Public Technical Services of Epirus – Western Macedonia”, Proceedings of the 5^th National Conference on Planning and Regional Development, Volos, 27-30/9/2018.
17. Polyzos S., Papalitsas K., (2015), “Technical and Economic Evaluation of the Spatial Distribution of Photovoltaic Systems in Thessaly”, Proceedings of the 4^th National Conference on Planning and Regional Development, 24-27 September, Volos.
18. Stafanouli M., Polyzos S. (2015), “Determination of Functional Urban Areas on the basis of daily commuting”, Proceedings of the 4^th National Conference on Planning and Regional Development, 24-27 September, Volos.
19. Polyzos S,, Giannopoulos E., Niavis S. (2015), “Efficiency Evaluation of the Technical Services of the Region of D. Macedonia using DEA”, Proceedings of the 4^th National Conference on Planning and Regional Development, 24-27 September, Volos.
20. Polyzos S., Tsiotas D., Papageorgiou A. (2015), “Spatial Analysis and Study of Regional Airports Dynamics in Greece”, Proceedings of the 4^th National Conference on Planning and Regional Development, 24-27 September,Volos.
21. Polyzos S., Saratsis G. (2013), “The geography and characteristics of tourism in Greece, the location and prospects of the Region of Thessaly”, Proceedings of the 7^th International Conference of National School of Management and Economics, 8-10 June, Larisa, pp.. 10-30, ISBN# 978-960-9510-08-0.
22. Polyzos S., Anastasiou A., Geraki M. (2013), “The development path of small towns in Greece”, Proceedings of the 7^th International Conference of National School of Management and Economics, 8-10 June, Larisa, pp. 182-199, ISBN#978-960-9510-08-0.
23. Polyzos S., Tsiotas D., Sdrolias L. (2013), “Evaluating the Differences in the Greek Regional Productivity by Applying Shift–Share Analysis|”, Proceedings of 7^th Annual MIBES International Conference, p. 43-56, 8-10 June, Larissa, Greece, ISBN: 978-960-9510-08-0.
24. Geraki M. Polyzos S., Sdrolias L. (2013), “Public Investments Allocation and Regional Prosperity”, Proceedings of 7^th Annual MIBES International Conference, 222-233, 8-10 June, Larissa, Greece, ISBN: 978-960-9510-08-0.
25. Pnevmatikos T., Niavis S., Polyzos S. (2013), “Evaluating Greek economic sectors’ regional dynamics during the pre and in–crisis period”, Proceedings of 7^th Annual MIBES International Conference, p. 82-93, 8-10 June, Larissa, Greece, ISBN: 978-960-9510-08-0.
26. Polyzos S., Saratsis G., (2013), «Investigation of the evolution of tourism activity in the prefecture of Magnesia in the context of the life cycle theory», Proceedings of the 11^th National Congress of the Hellenic Society of Regional Science on: Rural Economy, Rural Area, Regional and Local Development, Patra, 14-15 June, 2013.
27. Saratsis G., Polyzos S., (2013), “Life Cycle of Tourist Areas. The case of Prefecture of Magnesia”, Proceedings of the 3^rd Conference of Applied Economics, University of Thessaly, Department of Economics,, Volos, 17-18 May, 2013.
28. Tsiotas D., Polyzos S. (2013), Interregional commuting under the Network Theoretical perspective: an empirical analysis from Greece, Multidisciplinary Academic Conference on Transport, Logistics and Information Technology, Prague, Czech Republic, May 09-11, 2013, ISBN 978-80-905442-0-8
29. Polyzos S., Proias, G., Kungolos A., Paliatsos A. G. (2012), “Environmental Planning of Urban Areas: The Case of Volos”, Proceedings of the 3^rd Conference on Spatial Planning & Regional Development, 27 – 30 September 2012, Volos.
30. Niavis S., Polyzos S., Pnevmatikos T., (2012), “Assessing the competitiveness of Greek prefectures using Context Dependent DEA”, Proceedings of the 3^rd Conference on Spatial Planning & Regional Development, 27 – 30 September 2012, Volos.
31. Alexiou A., Polyzos S., Tsiotas D., (2012), “Methods and Prospects of “Development Adapted to Public Transport”: An Application in Greece”, Proceedings of the 3^rd Conference on Spatial Planning & Regional Development, 27 – 30 September 2012, Volos.
32. Tsiotas D., Polyzos S., Alexiou A., (2012), “Analysis of the Interregional Transport Network using graph theory”, Proceedings of the 3^rd Conference on Spatial Planning & Regional Development, 27 – 30 September 2012, Volos.
33. Kantlis A., Polyzos S., Pnevmatikos T., (2012), “Statistical Verification of the Life Cycle Theory of Tourist Areas in Greece”, Proceedings of the 3^rd Conference on Spatial Planning & Regional Development, 27 – 30 September 2012, Volos.
34. Geraki M. Polyzos S. (2012), “Regional allocation of public investment”, 52^nd Anniversary European Congress of the Regional Science Association International, 21-25 August 2012, Bratislava, Slovakia.
35. Zachou E;, Polyzos S., Pnevmatikos T., (2012), “Comparative analysis of economic valuation methods of environmental value: Application to Lake N. Plastira”, Proceedings of the 1st Thessaly Environmental Conference, Skiathos, 8 – 10 September 2012.
36. Belibasakis E., Polyzos S., Geraki M., (2012), Evaluation of alternatives for relocation of the TIF”, Proceedings of the 10^th Scientific Conference “Economic Crisis and Development and Cohesion Policies”, 1-2 June 2012, Thessaloniki.
37. Veleva E., Polyzos S., Geraki M., (2012), “Evaluation of the Leader Plus Community Program in Greece”, Proceedings of the 10^th Scientific Conference “Economic Crisis and Development and Cohesion Policies”, 1-2 June 2012, Thessaloniki.
38. Polyzos S., Niavis S., Pnevmatikos T., (2012), “On Using Window Data Envelopment Analysis for Longitudinal Evaluation of Greek Regional Policies”, Proceedings of Management of International Business and Economics Systems 2012 Conference, 25-27 May 2012, Larissa, Greece.
39. Pnevmatikos T., Polyzos S., (2012), “Analysis of Time stability of the technological coefficients of input-output analysis in the Greek economy”, Proceedings of the National Conference on Management and Economics, 25-27 May, Larisa.
40. Polyzos S., Minetos D., Tsiotas D., (2012), “Illegal housing in Greece: Determinants and evolutionary patterns”, Proceedings of the National Conference on Management and Economics, 25-27 May, Larisa.
41. Polyzos, S., Tsiotas, D., Papaioannou, F., (2011), “Spatial dynamics of coastal Cities in Greece”, Proceedings of the 3rd International CEMEPE & SECOTOX Conference, June 19-24, Skiathos, Greece, ISBN 978-960-6865-43-5, pp.1263-1269.
42. Geraki M., Polyzos S (2011) “Public Investment Regional Allocation under Uncertainty”, 51th Anniversary European Congress of the Regional Science Association International: “New Challenges for European Regions and Urban Areas in a Globalised World”, Barcelona.
43. Geraki M., Polyzos S. (2011) “Public Infrastructure Investment Interregional Allocation”, 17th European Colloquium on Quantitative and Theoretical Geography, Athens.
44. Polyzos S., Niavis S., Pnevmatikos T., (2011), “Estimating the Efficiency of the Regional Economic System Using Data Envelopment Analysis”, Proceedings of 9^th National Conference: “Regional Development and Economic Crisis: International Experience and Greece, 6-7 May 2011, Institute of Regional Development, Panteio University, Athens.
45. Sdrolias L., Polyzos S., Ioannou C. (2011), Working conditions in construction: A case study of Greece, Proceedings of the 3^rd International Conference on Economics and Administration, 3-4 June 2011 Bucharest.
46. Geraki M., Polyzos S., Krikeli O. (2010), “Public Investment Regional Allocation: Evaluation of Applicability of Existent Methodologies.”, Paper presented in Congress of ERSA,
47. Polyzos S., Nakas E., (2010), “The E-65 Motorway: Assessing its Development Impacts and Evaluating Alternatives to its Connection to Volos”, Proceedings of the 2nd Development Conference of Karditsa Prefecture, pp. 33-54.
48. Polyzos S., Karamitsiou D. (2010), “Coefficients of urban density and Urban Development: The Case of Karditsa”, Proceedings of the 2nd Development Conference of Karditsa Prefecture, pp. 89-118.
49. Polyzos S., Athanatou S. (2010), “A proposal for the new administrative division of Karditsa Prefecture”, Proceedings of the 2nd Development Conference of Karditsa Prefecture, pp. 137-173.
50. Sofios S., Zafeiriou E., Polyzos S., Christopoulou O. (2009), “Investigation of Stagnation of Rainfall Time Series with KPSS Control in Thessaly Region”, Proceedings of the 2^nd National Conference on Planning and Regional Development,, Volos, pp. 1001-1008.
51. Pappas I., Polyzos S., Kungolos A. (2009), “Spatial planning, social perception and cost optimization of industrial accidents”, Proceedings of the 2^nd National Conference on Planning and Regional Development, Volos, pp. 1123-1130.
52. Niavis S., Polyzos S. (2009), “The South East European Port System: An Introductory Examination of Factors Affecting their Transport Performance”, Proceedings of the 2^nd National Conference on Planning and Regional Development, Volos, pp. 205-213.
53. Latinos B., Polyzos S. (2009), “Sustainable energy systems in Greece – Solar energy applications in public buildings”, 2^nd International Conference in Environmental Management, Engineering, Planning and Economics, Mykonos June (2009). Book of Abstracts, p. 423.
54. Polyzos S., Minetos D. (2008), “Structural Change and the Productivity Growth in Greek Regions”, Proceedings of 4^th International Conference of ASECU on “Development Cooperation and Competitiveness, organized by The Bucharest Academy of Economic Studies, May 2008, Bucharest, Romania, pp. 462-473.
55. Polyzos S., Niavis S, Minetos D. (2008), “The Ports of North Greece and their importance for the economic development of South – Eastern Europe”, Proceedings of 4^th International Conference of ASECU on “Development Cooperation and Competitiveness” organized by The Bucharest Academy of Economic Studies, May 2008, Bucharest, Romania, pp. 474-488.
56. Polyzos S. (2008), “The double-connection of Maliakos and the spatial economic impact”, Proceedings of Conference, TCG,, 15 October, Athens.
57. Filintas A., Polyzos S. (2008), “Dams, Ecosystem operation and Environmental Impacts”, Proceedings of the 1^st National Conference on Large Dams, Larisa, 13-15 November, pp. 143-154.
58. Filintas A., Polyzos S., Stamatis G., (2008), “Planning, Construction and Operation of Dams and Water Reservoirs Depending on Environmental Impact”, Proceedings of 8^th International Hydro geological Congress of Greece, 2, pp. 767-782.
59. Geraki M., Polyzos S. (2008), “Optimal Regional Distribution of Public Investment: A Critical Review of Methodologies”, Proceedings of the 8th National Congress of the ERSA Greek Department in «Urban Development in Greece and EU», 17-18 October, pp. 466-480, Athens.
60. Polyzos S., Niavis S., (2008), “The Prospects for Combining Rail and Maritime Transport in Greece”, Proceedings of the 8th National Congress of the ERSA Greek Department in «Urban Development in Greece and EU», 17-18 October, pp. 211-229, Athens.
61. Polyzos S., Minetos D. (2008), “Spatial analysis of differences in variation of building activity in Greece“, Proceedings of 3^rd MIBES, International Conference, Larisa, Greece,.4-6 July 2008.
62. Tsakistara D., Sdrolias L., Polyzos S., Kakkos N. (2008), “Analysis of Greek milk market: revealing a cartel? Quo vantis?”, Proceedings of 3^rd MIBES, International Conference, Larisa, Greece, 4-6 July 2008.
63. Bakopoulou S., Katsavou I. Polyzos S., Kungolos A. (2008), “Social Acceptability of Recycled Water use for irrigation Purposes in Thessaly Region, Greece”, Proceedings of 9^th International Conference in “Protection and Restoration of the Environment”, 29/6/08 to 3/7/08, Kefalonia.
64. Bakopoulou S., Katsavou I., Polyzos S., Kungolos A. (2008), “Using recycled water for agricultural purposes in Thessaly region, Greece: a primary investigation of citizens opinions”, in the Proc. of 3^rd International Conference on Waste Management and the Environment, Spain.
65. Katsavou I.,., Bakopoulou S, Polyzos S., Aravosis K., Kungolos A.. (2008), “Investigation of the possibility of reuse of municipal waste in the Region of Thessaly”, Proceedings of the 2nd Conference “Small Scale Water and Wastewater Treatment Facilities”, 375-381, Skiathos.
66. Polyzos S., Petrakos G. (2008), “The Development of Pref. of Karditsa: Comparative Evaluation and Policy Proposals”, Proceedings of the 1st Conference on Development of Pref. of Karditsa, pp. 63-85.
67. Polyzos S., Minetos D. (2007) “Regional Development Incentives and their Influence on the Location Decisions of Industrial Firms in Greece: An ordinal regression analysis”, Proceedings of 2^nd MIBES, International Conference, Larisa, 29-30 September, Greece.
68. Polyzos S., Minetos D. (2007), “Past and present patterns of informal housing in Greece: A spatial analysis”, Proceedings of 47^th Congress of ERSA 2007, August – September, Paris.
69. Minetos D., Polyzos S. (2007), “Forest land use changes in Greece: An ordinal regression analysis at the regional level”, Proceedings of 47^th Congress of ERSA 2007, August – September, Paris.
70. Polyzos S., Minetos D. (2007), “Causes and management implications in the Greek coastal zone from informal settlements development” CEMEPE/SECOTOX Conference June 24 – 28, pp. 727-732, Skiathos, Greece.
71. Minetos D., Polyzos S. (2007), “Agricultural land uses changes in Greece: A regional analysis”, CEMEPE/SECOTOX Conference June 24 – 28, pp. 563-569, Skiathos, Greece.
72. Bakopoulou , Polyzos S., Kungolos A. (2007), “Investigation of farmers’ willingness to pay for using recycled water for irrigation in Thessaly region, Greece”, CEMEPE/SECOTOX Conference June 24–28, pp. 1059-1060, Skiathos, Greece.
73. Bakopoulou S., Polyzos S., Kungolos A. (2007), “Comparative Analysis of Decision Making Methodologies used in Environmental Planning”, Proceedings of International Conference on: “Sustainable Development and Planning“, Portugal, vol. 1, pp. 419-425.
74. Polyzos S., Sdrolias L., Minetos D. (2006), “Productivity and Spatial Diffusion of Technology in Greece”, Proceedings of 1^st MIBES, International Conference, Larisa, 4-5 November, Greece.
75. Minetos D., Polyzos S., Sdrolias L. (2006), “Social and Public Responsibility and Illegal Urban Land Uses in Greece: An Empirical Investigation”, Proceedings of MIBES, International Conference, Larisa, 4-5 November, Greece.
76. Sofios S., Polyzos S. (2006), “Large Dams and their Impacts on Economic Development and the Environment: A Review of Methodologies”, Proceedings of the 8^th National Conference on Agricultural Economics, 2-4 November, Athens.
77. Polyzos S. Sofios S., Goumas K. (2006), “Diachronic changes in the underground water potential of Thessaly Region and their Impact on Regional Development and the Environment”, Proceedings of the 8^th National Conference on Agricultural Economics, 2-4 November, Athens.
78. Polyzos S., Minetos (2006), “Coastal urbanization and shoreline protection: A Cost-Benefit Analysis and Contingent Valuation Method in designing sustainable protection works”, Proceedings of International Conference on: Information Systems in Sustainable Agriculture, Agro-Environment and Food Technology, HAICTA, 20-23 September, Volos, pp. 459-469.
79. Polyzos S., Christopoulou O., Minetos M. (2006), “Investigating land use/ cover change and its dynamics by means of combining statistical techniques and remote sensing methodologies”, Proceedings of International Conference on: Information Systems in Sustainable Agriculture, Agro-Environment and Food Technology, HAICTA, 20-23 September, Volos, pp. 285-299.
80. Polyzos S., Christopoulou O., Minetos D. (2006), “Urban – Rural Land Use Interactions in Greece”, Proceedings of International Conference on “Sustainable Management and Development of Mountainous and Island Areas”, pp. 62-75, 29^th September – 1 October, Naxos.
81. Arabatzis G., Polyzos S., Tsiantikoudis S. (2006) “Resurgence of Traditional Activities and Local Development: The Mulbery Plantations and Sericulture in the Prefecture of Evros”, Proceedings of International Conference on “Sustainable Management and Development of Mountainous and Island Areas”, pp. 48-58, 29^th September – 1 October, Naxos.
82. Christopoulou O., Polyzos S., Minetos D. (2006). “Peri-urban and Urban Forests in Greece: Obstacle or Advantage to Urban Development?”, Proceedings of International Conference on “Sustainable Management and Development of Mountainous and Island Areas”, pp. 88-96, 29^th September – 1 October, Naxos.
83. Polyzos S., Arabatzis G., Tsiantikoudis S. (2006), “The Attractiveness of Archaeological Sites in Greece: A spatial Analysis”, International Conference of Trends, Impacts and Policies on Tourism Development, Crete, 15-18 June 2006
84. Arabatzis G., Polyzos S., Tsiantikoudis S. (2006), The Carrying Capacity of a mountainous Tourist Area: The case of Plastiras Lake, International Conference of Trends, Impacts and Policies on Tourism Development, Crete, 15-18 June 2006.
85. Pappas, Polyzos S., Kougolos A. (2005), “Land Use Planning around high – risk industrial sites: The factors that affect in decision making”, 2^nd International Conference on Sustainable Planning & Development, Bolonia, September 2005, pp. 401-410.
86. Sdrolias L. Polyzos S., Pappas N., Vounatsou M. (2005), “Cooperative Strategies of entry in the International Market between the Greek enterprises”, The 2^nd International Conference on Economics and Management of Networks, 15-17 Sept. 2005, Budapest, Hungary.
87. Koutseris E, Polyzos S (2005), “Water resources exploitation-valorization in the context of environmental policies: The case of Smokovo Dam in Thessaly”. In Conference Proceedings, 6^th International Conference 7-10/9/05, Menton, France.
88. Polyzos S., Sofios S. (2005), “Water Resources, Interregional Conflicts and Regional Development: The Case of Acheloos River”, Proceedings of 9^th International Conference on Environmental Science and Technology, Rhodes Island, Greece.
89. Pappas I., Polyzos S. (2005), “Spatial planning and optimization of cost of Big Industrial Accidents”, Proceedings of 17^th Congress of HELORS (EEEE), Patra, pp. 429-443.
90. Polyzos S., Syrakoulis K., Tsibanogianni V. (2005), “Leasing and Economic Development: The Financing of Technical Companies in the Region of Thessaly”, Proceedings of 17^th Congress of HELORS (EEEE), Patra, pp. 47-60.
91. Polyzos S., Georgiadou M. (2005), “Co-financed works: Analysis of dangers and their contribution in the economic and regional development”, Proceedings of 17^th Congress of HELORS (EEEE), Patra, pp. 445-456.
92. Sofios S., Polyzos S. (2005), “Regional Multipliers and Regional Planning in Greece”. AESOP Congress Vienna, Austria, Book of Abstracts, 440 – 441.
93. Polyzos S., Sofios S. (2005), “Interregional Conflicts for the Water Resources”. Proceedings of IWA International Conference on Water Economics, Statistics, and Finance Rethymno, Greece, Book 1, pp. 463 – 470.
94. Sofios S., Polyzos S. (2005), “Economic Appraisal of Water Resources”. Proceedings of IWA International Conference on Water Economics, Statistics, and Finance, Rethymno, Greece, Book 2, pp. 31 – 36.
95. Polyzos S., Iordanidis G. (2005), “Financial evaluation of co-financed transport projects”, Proceedings of 2^nd Pan-Hellenic Road Construction Conference, 18-20/5, Volos.
96. Ipsilantis , Sirakoulis K., Polyzos S., Gerogiannis V (2004), “A DSS based methodology for Programme Management”, Proceedings of the 18^th IPMA World Congress of Project Management, 19-20 June 2004.
97. Polyzos S., Petrakos G. (2003), “Public Investment and Regional Development: The Role of Regional Multipliers”, Conference Proceedings on “Regional Development in Greece: Trends and Prospects”, pp. 125-145, Athens.
98. Polyzos S. (2003), «Public Works and Investments Programming with the Criterion of their Economic Impacts», Proceedings of the 16^th National Conference of HELORS (EEEE) in «Project Management», Larisa, vol. 1, pp. 89-99.
99. Polyzos S., Douvika G. (2003), «Statistical Analysis of Industrial Accidents», Proceedings of the 16^th National Conference of HELORS (EEEE) in «Project Management», Larisa, vol. 2, pp. 215-226.

1. Pappas I., Polyzos S., Kungolos A. (2005), “Spatial and economic assessment of industrial accidents in Greece”, 1st Pan-Hellenic Conference on Risk and Crisis Management, Karditsa.
2. Polyzos S., (2000), “The Cost of Delaying the Completion of a Hydraulic Project: The Case of Smokovo Dam”, Presentation at the Scientific Conference of the Technical Chamber of Greece on “The Contribution of Hydraulic Projects to the Development of Karditsa Prefecture and the Wider Thessaly Environment“, Karditsa.
3. Polyzos S., (2000), “The Regional Problem, the Need for Regional Policy and the Position of Prefecture of Karditsa”, Presentation at the Scientific Conference of the Technical Chamber of Greece on “The Contribution of Hydraulic Projects to the Development of Karditsa Prefecture and the Wider Thessaly Environment“, Karditsa.

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