Research

Working papers

• 'MPCs estimated from tax lottery, survey and administrative data' (with P. Sakellaris) [pdf]

• 'Principles for Pareto efficient border carbon adjustment' (with M. Keen) [pdf] 

• 'Tax evasion as contingent debt' (with X. Mateos-Planas) [pdf] (conditionally accepted, International Economic Review)

• 'Drive and effects of residence and citizenship by investment' (with S. Clerides, M. Delgado Coelho, A. D. Klemm) [pdf] (Revise and resubmit International Tax and Public Finance)

• 'Artificial splitting and the VAT registration threshold' (with G. Gyoshev, K. Tester, T. Pavkov) [pdf] 

• 'One and done or repeat inspections? The differential effect of multiple tax audits' (with D. Hemming, J. Pirttila, L. Salvadori) [pdf]

• 'Wealth tax enforcement: The role of tax and institutional design' (with J. M. Duran-Cabre, A. Esteller-More, Luca Salvadori) [pdf]    

• 'Hosts of hostages? Macroprudential policy and inward M&As' (with K. Neanidis) [pdf] 

• 'The impact of tax audits on small enterprises: Compliance gains or backfiring?' (with C. Genakos, L. Salvadori) [paper coming soon]

• `Targeting coordinated VAT fraud: A data-driven framework for risk-based enforcement' (with A. Alexopoulos, K. Bourazas) [paper coming soon]

• `Buyers as auditors in the fuel market: Evidence from administrative data' (with A. Alexopoulos, C. Mylonakis) [paper coming soon]

Work in progress

• 'On VAT threshold(s)' (with K. Serfes)

Forthcoming (accepted for publication) paper(s)

• 'A network and machine learning approach to detect Value Added Tax fraud' (with A. Alexopoulos, P. Dellaportas. S. Gyoshev, T. Pavkov, S. C. Olhede) [pdf ] (forthcoming Journal of the Royal Statistical Society: Series A) 

Policy comments 

• The impact of institutions on the shadow economy and corruption: A latent methodology approach (with A. Dreher, and S. McCorriston) in Handbook on the Shadow Economy, 2011, Edward Elgar, pp.433-466

• Reforming the Greek income tax structure: Time for a 'flat' tax?, 2012, [pdf] (published in the Greek Economists for Reform blog)

• Tax and welfare reform in Greece (with M. Flevotomou, M. Haliassos, and C. Meghir) in Beyond Austerity: Reforming the Greek Economy (edited by C. Meghir, C.Pissarides, D. Vayanos, N. Vettas), 2017, MIT Press  [if you would like a copy please email me]

• Credibility and economic policy in To Vhma Newspaper, March 29, 2015 (in Greek)

• European Union and own revenue resources: (Brief) lessons from decentralized economies in The Future of EU-Finances (edited by T. Buetner and M. Thone) 2016, Mohr Siebeck

• European Union: Three directions of reform in To Vhma Newspaper, February 2, 2016. (In Greek)

• Efficiency, equity and property taxes in Kathimerini Newspaper, June 7, 2017. (In Greek)

• Climate Change and International trade in Kathimerini Newspaper, March 17, 2020. (In Greek)

• Support to businesses and households, To Vhma Newspaper, April 12, 2020. (In Greek)

• Blog, Some thoughts and a warning, April 24, 2020

• Blog, COVID-19 and Africa: The world should take bold actions (TARC Blog), May 2020

• VoxDEv, Tax audits and compliance: Evidence from Rwanda, April 15, 2022 

• Taxation and AI in Kathimerini Newspaper, June 30, 2024. (In Greek)

Introductions to special issues (guest editorship)

• Introduction to the Special Issue 'New Perspectives on Tax Administration', 2020, CESifo Economic Studies 66(3), 2020, 181–184, https://doi.org/10.1093/cesifo/ifaa009 

• Climate change: Fiscal and international trade issues—introduction (with T. Buettner), 2013, International Tax and Public Finance 20, 357-359 [pdf]

• International coordination on climate policies: A (brief) introduction (with M. Finus, and S. McCorriston), 2013, Journal of Environmental Economics and Management 66, 159-165

• The international dimension of climate change policy (with M. Finus, and S. McCorriston), 2013, Environmental and Resource Economics 56, 151-160

Editorship

• Journal of Tax Administration (JOTA), managing editor, Nov. 2024 - present

• CESifo Economic Studies, editor, 2016 - 2024

• Journal of Tax Administration (JOTA), co-editor, 2015 - Nov. 2024

• FinanzArchiv/Public Finance Analysis, associate editor, 2018 - present

Published papers

• Does federalism lead to excessively high taxes? (with M. Keen), 2002, American Economic Review 92(1), pp. 363-370

• On production efficiency in federal systems (with M. Makris), 2002, Economics Letters 76, pp. 281-287

• Leviathan and capital tax competition in federations (with M. Keen), 2003, Journal of Public Economic Theory 5(2), pp. 177-199 (lead article)

• Tax competition in federations and the welfare consequences of decentralization (with M. Keen), 2004, Journal of Urban Economics 56, pp. 397-407 (lead article)

• The origin principle, tax harmonization and public goods (with M-A Lopez-Garcia, and G. Myles), 2005, Economics Letters 87, pp. 211-219 

• Political uncertainty and policy innovation (with R. Schwager), 2006, Journal of Public Economic Theory 8, pp. 779-805

• Federal tax autonomy and the limits of cooperation (with S. Kessing, and K. Konrad), 2006, Journal of Urban Economics 59, pp. 317-329 

• On the incentives to experiment in federations (with R. Schwager), 2006, Journal of Urban Economics 60, pp. 484-497 

• Imperfect competition, indirect tax harmonization and public goods (with M-A Lopez-Garcia), 2007, International Tax and Public Finance 14, pp. 135-149

• FDI and the dark side of decentralization (with S. Kessing, and K. Konrad), 2007, Economic Policy, pp 5-70 (lead article)

• A spatial analysis of provincial corporate income tax responses: Evidence from Canada (with S. Karkalakos), 2007, Canadian Journal of Economics 40, pp. 782-811

• Corruption in the 21st century: Evidence from a structural model (with A. Dreher, and S. McCorriston), 2007, Journal of Comparative Economics 35(3), pp. 443-466 (lead article)

• Ad valorem taxes and the fiscal gap in federations (with D. Martinez), 2008, Economics Letters 99, pp. 431-434

• Accountability and fiscal equalization (with R. Schwager), 2008, Journal of Public Economics 92, pp. 2236/2349

• Cross border mergers and acquisitions in the food sector (with N. Herger, and S. McCorriston), 2008, European Review of Agricultural Economics 35(4), pp.563-588

• Federalism, weak institutions, and the competition for foreign direct investment (with S. Kessing, and K. Konrad), 2009, International Tax and Public Finance 16(1), pp. 105-123

• How do institutions affect corruption and the shadow economy? (with A. Dreher, and S. McCorriston), 2009, International Tax and Public Finance 16(6), pp.773-796 [earlier version]

• Federal tax competition and the efficiency consequences for local taxation of revenue equalization, 2010, International Tax and Public Finance 17(1), pp.1-14 (lead article) [earlier version]

• Public goods and tax competition in a two-sided market (with K. Serfes), 2010, Journal of Public Economic Theory 12, pp.281-321 [earlier version]

• Climate and international trade policies when emissions affect production possibilities (with A. Woodland), 2013, Journal of Environmental Economics and Management 66, 166-194 (lead article) [earlier version]

• International coordination on climate policies: A (brief) introduction (with M. Finus, and S. McCorriston), 2013, Journal of Environmental Economics and Management 66, pp.159-165 [pdf]

• Indirect tax harmonization and global public goods (with O. Karakosta, and M-A Lopez-Garcia), 2014, International Tax and Public Finance 21(1), pp.29-49 [earlier version]

• The comparison of ad valorem and specific taxation under imperfect information (with K. Serfes), 2014, Journal of Public Economic Theory 16(1), pp.48-68 [earlier version]

• Coordinating climate and trade policies: Pareto efficiency and the role of border tax adjustments (with M. Keen), 2014, Journal of International Economics 94, pp.119-128 

• Multiple taxes and alternative forms of FDI: Evidence from cross-border acquisitions (with N. Herger, S. McCorriston), 2016, International Tax and Public Finance 23, pp.82-113

• Optimal performance reward, tax compliance and enforcement (with K. Serfes), 2016, Economic Theory (Bulletin) 4 pp.325-345

• Fuel-subsidies and the control of corruption: A first approach (with L. Rizzo) [pdf], in The Economics and the Political Economy of Energy Subsidies (edited by J. Strand), 2016, MIT Press 

• Information transmission within federal fiscal architectures: Theory and evidence (with A. Dreher, K.Gehring, and S. Marchesi), 2018, Oxford Economic Papers 70, pp.243-265

• Fuel-subsidies and decentralisation: Theory and evidence (with L. Rizzo and M. Ferraresi), 2018, Energy Economics 74, pp. 275-286

• Self-employment under-reporting in Great Britain: Who and how much? (with A. Gonzalez Cabral and G. Myles), 2019, CESifo Economic Studies 65, pp.84-107, lead article

• The 'Great Lockdown' and its determinants (with L. Rizzo, M. Ferraresi and R. Secomandi), 2020, Economics Letters 197 https://doi.org/10.1016/j.econlet.2020.109628 

• A sample size determination for risk based auditing (with P. Dellaportas and V. Ioannidis), 2021, Journal of the Royal Statistical Society  Series A 184, pp. 479-493 https://doi.org/10.1111/rssa.12618  

• Pareto-improving indirect tax coordination and tax diversity (with M-A Lopez-Garcia), 2021, Oxford Economic Papers 73(2), pp. 561-577 https://doi.org/10.1093/oep/gpz073

• On commodity tax harmonization and public goods provision (with M-A Lopez-Garcia),  2021, Journal of Public Economic Theory,  23, pp. 1220–1227 https://doi.org/10.1111/jpet.12535

• Quasi-hyperbolic discounting and externalities: Can government intervention improve welfare? (with R. Schwager), 2022, Canadian Journal of Economics, 53(3), pp. 1480-1506  https://doi.org/10.1111/caje.12572

• 'Climate change and the existence of strict Pareto improving multilateral financial transfers' (with A. Woodland), 2025, Oxford Economic Papers, 77(1), pp. 190–212  https://doi.org/10.1093/oep/gpae022 [open access]

• 'Do tax audits have a dynamic impact? Evidence from corporate income tax administrative data' (with L. Salvadori, J. Karangwa and T. Mukamana), 2024, Journal of Development Economics, 170, 103292, https://doi.org/10.1016/j.jdeveco.2024.103292 [open access]

• 'E-invoicing, tax audits and tax compliance' (with L. Salvadori, J. Karangwa, I. Murasi), 2025,  Journal of Development Economics, 172, 103403, https://doi.org/10.1016/j.jdeveco.2024.103403, [open access]

• 'A network and machine learning approach to detect Value Added Tax fraud' (with A. Alexopoulos, P. Dellaportas. S. Gyoshev, T. Petrov, S. C. Olhede) [pdf ] (accepted November 2025, forthcoming Journal of the Royal Statistical Society: Series A) 

     (Electronic (and hard when available) copies of the published work available upon request)

     Updated August 2025