Just Accepted Manuscripts
Original Research Article

Trade Policy Uncertainty: the Ultimate Wine Label Remover: Special Issue "Transforming wine value chains – Adapting to a changing world"

(Just Accepted)
  • Steven Landgraf
Steven Landgraf
Virginia Military Institute
DOI: https://doi.org/10.36253/wep-19990

Published 2026-08-27

Keywords

  • Trade policy uncertainty,
  • Wine,
  • difference-in-differences,
  • product entry,
  • tariffs

How to Cite

Landgraf, S. (2026). Trade Policy Uncertainty: the Ultimate Wine Label Remover: Special Issue "Transforming wine value chains – Adapting to a changing world". Wine Economics and Policy. https://doi.org/10.36253/wep-19990

Copyright (c) 2024 Steven Landgraf

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

This paper examines how trade policy uncertainty (TPU) affects the extensive margin of international trade (new product entry decisions) using a novel dataset of wine Certificate of Label Approval (COLA) applications submitted to the U.S. Alcohol and Tobacco Tax and Trade Bureau (TTB). Because TTB regulations do not require new applications for routine vintage updates or minor format changes, each COLA application represents a genuine, forward-looking business decision to introduce a new product or refresh an existing product in the U.S. market. Exploiting the November 2024 U.S. presidential election as a regime change in trade policy uncertainty (TPU), accompanied by various threatened and implemented tariffs in 2025, I estimate difference-in-differences (DiD) models comparing EU wine producers (treated) against domestic U.S. producers (control) using a weekly panel of application counts. While some tariff-related events in 2025 appeared to have more intense negative impacts on weekly EU applications, the coefficient for the post-election treatment implies a 21.7% reduction in EU wine product applications in the 61-week post-election window to the end of 2025. When the TPU index is included as a control, the post-election coefficient is attenuated by approximately 72%, consistent with the sustained post-election rise uncertainty being the primary driver of the decline. To complement the DiD analysis, a counterfactual model that exploits the close pre-2025 relationship between US and EU applications estimates a reduction of 14,899 foregone applications over the post-election period, equivalent to a 23.5% reduction as compared to pre-election figures. These results document an upstream disruption to wine producers that are not directly captured in traditional trade flow statistics: uncertainty deters new product introductions before any tariff is imposed or shipment is made.

(Just Accepted)

References

  1. D. Caldara, M. Iacoviello, P. Molligo, A. Prestipino, A. Raffo, The economic effects of trade policy uncertainty, Journal of Monetary Economics 109 (2020) 38–59. https://doi.org/10.1016/j.jmoneco.2019.11.002.
  2. B.S. Bernanke, Irreversibility, uncertainty, and cyclical investment, The Quarterly Journal of Economics 98 (1983) 85–106. https://doi.org/10.2307/1885568.
  3. A. Dixit, Entry and exit decisions under uncertainty, Journal of Political Economy 97 (1989) 620–638. https://doi.org/10.1086/261619.
  4. N. Bloom, Fluctuations in uncertainty, Journal of Economic Perspectives 28 (2014) 153–176. https://doi.org/10.1257/jep.28.2.153.
  5. K. Handley, N. Limão, Trade and investment under policy uncertainty: Theory and firm evidence, American Economic Journal: Economic Policy 7 (2015) 189–222. https://doi.org/10.1257/pol.20140068.
  6. K. Handley, N. Limão, Policy uncertainty, trade, and welfare: Theory and evidence for China and the United States, American Economic Review 107 (2017) 2731–2783. https://doi.org/10.1257/aer.20141419.
  7. M. Crowley, N. Meng, H. Song, Tariff scares: Trade policy uncertainty and foreign market entry by Chinese firms, Journal of International Economics 114 (2018) 96–115. https://doi.org/10.1016/j.jinteco.2018.05.003.
  8. J. Carballo, K. Handley, N. Limão, Economic and policy uncertainty: Aggregate export dynamics and the value of agreements, Journal of International Economics 139 (2022) 103661. https://doi.org/10.1016/j.jinteco.2022.103661.
  9. A.G. Graziano, K. Handley, N. Limão, Brexit uncertainty and trade disintegration, The Economic Journal 131 (2020) 1150–1185. https://doi.org/10.1093/ej/ueaa113.
  10. A.B. Flaaen, A. Hortaçsu, F. Tintelnot, N. Urdaneta, D. Xu, Who pays for tariffs along the supply chain? Evidence from European wine tariffs, Working Paper 34392, National Bureau of Economic Research, 2025. https://doi.org/10.3386/w34392.
  11. M.J. Melitz, The impact of trade on intra-industry reallocations and aggregate industry productivity, Econometrica 71 (2003) 1695–1725. https://doi.org/10.1111/1468-0262.00467.
  12. T. Chaney, Distorted gravity: The intensive and extensive margins of international trade, American Economic Review 98 (2008) 1707–1721. https://doi.org/10.1257/aer.98.4.1707.
  13. E. Helpman, M. Melitz, Y. Rubinstein, Estimating trade flows: Trading partners and trading volumes, Quarterly Journal of Economics 123 (2008) 441–487. https://doi.org/10.1162/qjec.2008.123.2.441.
  14. P.D. Fajgelbaum, P.K. Goldberg, P.J. Kennedy, A.K. Khandelwal, The return to protectionism, The Quarterly Journal of Economics 135 (2019) 1–55. https://doi.org/10.1093/qje/qjz036.
  15. M. Amiti, S.J. Redding, D.E. Weinstein, The impact of the 2018 tariffs on prices and welfare, Journal of Economic Perspectives 33 (2019) 187–210. https://doi.org/10.1257/jep.33.4.187.
  16. R.C. Feenstra, New product varieties and the measurement of international prices, The American Economic Review 84 (1994) 157–177.
  17. P.J. Klenow, A. Rodríguez-Clare, Quantifying variety gains from trade liberalization, Working Paper, Graduate School of Business, University of Chicago, 1997. http://www.klenow.com/QuantifyingVariety.pdf.
  18. C. Broda, D.E. Weinstein, Globalization and the gains from variety, The Quarterly Journal of Economics 121 (2006) 541–585. https://doi.org/10.1162/qjec.2006.121.2.541.
  19. A. Mariani, E. Pomarici, V. Boatto, The international wine trade: Recent trends and critical issues, Wine Economics and Policy 1 (2012) 24–40. https://doi.org/10.1016/j.wep.2012.10.001.
  20. J.-M. Cardebat, J.-M. Figuet, The impact of exchange rates on French wine exports, Journal of Wine Economics 14 (2019) 71–89. https://doi.org/10.1017/jwe.2019.2.
  21. Government Publishing Office, Labeling and Advertising of Wine, 27 C.F.R. Part 4. Code of Federal Regulations. https://www.ecfr.gov/current/title-27/chapter-I/subchapter-A/part-4, 2026 (Accessed 20 July 2026).
  22. C. Cervantes, S. Smith, TTB labeling and formula processes: Evaluating burden among craft brewers, Beverages 7 (2021) 64. https://doi.org/10.3390/beverages7030064.
  23. C.A. Cervantes, S. Smith, D.C. Null, Malt beverage formulation and labeling: Brewers' perceptions and need for resources, International Journal of Hospitality Beverage Management 3 (2022). https://doi.org/10.52713/ijhbm.v3.12.
  24. K. Dingwall, An exhaustive (and exhausting) timeline of the American tariff roller coaster. Wine Enthusiast. https://www.wineenthusiast.com/culture/wine-spirits-tariff-timeline/, 2025 (Accessed 20 July 2026).
  25. G. Bade, Trump floats 25% tariffs on European Union. The Wall Street Journal. https://www.wsj.com/livecoverage/nvidia-earnings-stock-market-today-02-26-2025/card/trump-floats-25-tariffs-on-european-union-MvkSypQLiYz6OMvgeOYk, February 2025 (Accessed 20 July 2026).
  26. G. Bade, M. McGraw, R. Winkler, Trump threatens fresh tariffs on EU, iPhones and rival devices. The Wall Street Journal. https://www.wsj.com/economy/trade/trump-apple-tariffs-iphone-e4cc858c, May 2025 (Accessed 20 July 2026).
  27. J.C. Driscoll, A.C. Kraay, Consistent covariance matrix estimation with spatially dependent panel data, Review of Economics and Statistics 80 (1998) 549–560. https://doi.org/10.1162/003465398557825.
  28. L. Thach, Why America's vineyards are in crisis — and how growers are responding. Forbes. https://www.forbes.com/sites/lizthach/2025/11/13/crisis-in-us-vineyards-whats-next-for-american-wine-growers/, November 2025 (Accessed 20 July 2026).
  29. A. Reynolds, Wine sales drying up as Americans turn elsewhere. NBC News. https://www.nbcnews.com/data-graphics/data-shows-wine-decline-consumers-spending-less-drinking-less-rcna187628, January 2025 (Accessed 20 July 2026).
  30. A. Sage, French wine industry is withering on the vine as drinkers go dry. The Times. https://www.thetimes.com/world/europe/article/french-wine-industry-collapse-rpdptgtvf, December 2025 (Accessed 20 July 2026).
  31. L. Sumagaysay, Some California winemakers don't want tariffs on their European competitors. Here's why. CalMatters. https://calmatters.org/economy/2025/08/california-european-wines-tariffs/, August 2025 (Accessed 20 July 2026).