Spring Semester 2025-2026
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Date:19/02/2026 - 15:30 - 17:00
Title: "Green Tax Pass-Through to Retail Fuel Prices and Firm Heterogeneity: Evidence from France"
Speaker: Associate Professor Nikolaos Charalampidis, University of Laval
Host: Assistant Professor Kospentaris Ioannis, Department of Economics, Athens University of Economics and Business
Time: 15.30 -17.00
Room: 76, Patission Str., Antoniadou Wing, 3rd floor, Room A36
Abstract: Combining a natural experiment and high-frequency information on retail fuel prices, we investigate the level, dynamic, heterogeneity, and dependence of the pass-through of a green tax. The green tax’s economic incidence falls largely on consumers but with significant heterogeneity across gas stations. The magnitude and speed of pass-through vary between 84% and 100%, and two and eleven days, respectively, with gas stations affiliated with the low-price branch of oil companies and supermarkets passing the tax more and faster than gas stations affiliated with the ordinary branch of oil companies. Firm differences in the frequency of price changes that we uncover in the data explain more than two-thirds of the heterogeneous tax pass-through according to a dynamic model that also suggests an influence of strategic complementarities.
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Date:12/03/2026 - 13:30 - 15:00
Title: "Private Money and Public Debt. U.S. Stablecoins and the Global Safe Asset Channel"
(with Daniele Siena)Speaker: Dr. Massimo Ferrari Minesso, European Central Bank
Host: Assistant Professor Kospentaris Ioannis, Department of Economics, Athens University of Economics and Business
Time: 13.30 -15.00
Room: 76, Patission Str., Antoniadou Wing, 3rd floor, Room A36
Abstract: This paper studies the international macro-financial implications o f U .S. dollar-backed payment stablecoins. These digital assets create a new global safe asset channel that links private money creation and global payment needs directly to U.S. public debt. By reshaping the demand for safe assets and the geography of dollar intermediation, stablecoins transform the dynamics of global financial markets, generating new trade-offs, also for the U .S.: while stablecoins increase the global footprint o f t he U .S. dollar and lower the level of U.S. risk-free yields, there are also costs for the issuing country. Stablecoins dampen the domestic real effects of U.S. monetary policy and increase U.S. and foreign exposure to cross-country shocks. These effects are limited a t l ow adoption levels but rise non-linearly with stablecoin capitalization.
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Date:02/04/2026 - 15:30 - 17:00
Title: "tba"
Speaker: Associate Professor Nikolaos Kokonas, University of Bath
Host: Assistant Professor Kospentaris Ioannis, Department of Economics, Athens University of Economics and Business
Time: 15.30 -17.00
Room: 76, Patission Str., Antoniadou Wing, 3rd floor, Room A36
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Date:23/04/2026 - 15:30 - 17:00
Title: "ΤΒΑ"
Speaker: Associate Professor Petros G. Sekeris, TBS Education (Toulouse)
Host: Assistant Professor Efthymios Athanasiou, Department of Economics, Athens University of Economics and Business
Time: 15.30 -17.00
Room: 76, Patission Str., Antoniadou Wing, 3rd floor, Room A36
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Date:21/05/2026 - 15:30 - 17:00
Title: "TBA"
Speaker: Assistant Professor Sevim Kösem, Deree–The American College of Greece
Host: Assistant Professor Kospentaris Ioannis, Department of Economics, Athens University of Economics and Business
Time: 13.30 -15.00
Room: 76, Patission Str., Antoniadou Wing, 3rd floor, Room A36
