Address

Department of Economics 

Georgetown University 

Washington DC, 20057-1045 

Telephone: (202) 687-1429 

FAX: (202) 687-6102 

ludemar@georgetown.edu 

Primary Academic Position

• Georgetown University, School of Foreign Service and Department of Economics. 

  • Professor, 2018 - present; Associate Professor, 2001-18;  Assistant Professor, 1995-01.

  • Chair, Department of Economics, 2022-present. 

  • Director, Landegger Program in International Business Diplomacy, 2020 - present.

• University of Western Ontario, Department of Economics. Assistant Professor, 1990 - 1995.

Government Positions

• United States Department of State, Chief Economist, 2014-2016.

• White House Council of Economic Advisers. Senior International Economist, 2012-13.

• United States International Trade Commission. Visiting Scholar, 2001-2002

Visiting Positions

• University of Maryland, Department of Economics. Visiting Professor, 2012.

• University of British Columbia, Department of Economics. Visiting Professor, 2004-05 

• Princeton University, Woodrow Wilson School of Public and International Affairs. Visiting Professor, 2003.

• University of Glasgow, Department of Economics, Scotland. Visiting Scholar, 1996, 1995.

• University of Konstanz, Department of Economics, Germany. Visiting Scholar, 1995.

Degrees

• Ph. D. (1990) Columbia University

• M. Phil. (1988) Columbia University

• M.A. (1987) Columbia University

• B. A. (1983) Calvin College

Doctoral Thesis

"International Trade Agreements and GATT Rules: A Game-Theoretic Approach," sponsored by Professor Jagdish Bhagwati 

Grants and Awards

• National Science Foundation Grant, # SES-0649468, Project title: "Free Riding and the Most-Favored Nation Clause," with Anna Maria Mayda, 2007-2009.

• Summer Academic Research Grant, Georgetown University, 1998, 1999, 2000, 2001, 2006

• Best Graduate Professor Award, Department of Economics, Georgetown University, 1999, 2000.

• Junior Faculty Research Fellowship, Georgetown University, 1998

• Competitive Grant-in-Aid, Georgetown University, 1997

• British Council Grant, 1995

• Dean's Research Grant, University of Western Ontario, 1991 - 1994

• Sloan International Economics Workshop Fellowship, Columbia University, 1988-89

• President's Fellowship, Columbia University, 1986-87

Courses taught

International Trade (Undergraduate, Masters, and Ph.D.), Topics in International Trade, International Finance, Principles of Economics, Public Finance, Macroeconomics, Microeconomics, Growth and Development, Accounting and Finance, Senior seminar in Political Economy, Senior Seminar in International Economics. 

PhD Advisees: Vladimir Osakovsky (2001), Surani Jayasuriya (2002), Taizo Takeno (2002), Yanling Wang (2003), Pinar Cebi (2005), Evelina Mengova (2005), Utku Kumru (2005), Henric Adey (2006), Eteri Kvintradze (2006), Renee Bowen(2008), Justin Pierce (2009), Jose Daniel Reyes (2010), Zhi George Yu (2010), Jared Fronk (2014), Shen Qu (2014).

Current Research Interests:

International trade policy, trade agreements, political economy, regionalism, economic sanctions, trade and environment.

Publications

1. Refereed Journal Articles

• "Firm Input Choice under Trade Policy Uncertainty" (with Kyle Handley, Nuno Limao and Zhu Yu), Journal of International Economics, forthcoming. 

• "The Political Economy of Protection in GVCs: Evidence from Chinese Micro Data" (with Anna Maria Mayda, Miaojie Yu and Zhi Yu), Journal of International Economics, Volume 131, July 2021.  

• "The Sword and the Shield: The Economics of Targeted Sanctions," (with Daniel Ahn), European Economic Review, Volume 130, November 2020. 

• "Information and Legislative Bargaining: The Political Economy of U.S. Tariff Suspensions" (with Anna Maria Mayda and Prachi Mishra), Review of Economics and Statistics, Volume 100, Issue 2, 303-318, May 2018.

• "Tariff pass-through, firm heterogeneity and product quality" (with Zhi Yu), Journal of International Economics, Volume 103, 234-249, November 2016.

• "Do Terms-of-Trade Effects Matter for Trade Agreements? Theory and Evidence from WTO Countries" (with Anna Maria Mayda), The Quarterly Journal of Economics, 128 (4): 1837-1893, September 2013.  

• "Do Countries Free Ride on MFN?" (with Anna Maria Mayda), Journal of International Economics, Volume 77, Issue 2, 137-150, April 2009.

• "Estimating the Price Effects of Non-tariff Barriers" (with Judith Dean, Jose Signoret, Robert Feinberg and Michael Ferrantino). B.E. Journal of Economic Analysis & Policy (Contributions), Volume 9, Issue 1, Article 12, 2009.

• "Delegation versus Communication in the Organization of Government," (with Anders Olofsgard), Journal of Public Economics, Volume 90, Issue 1, 213-235, February 2008.

• "Tariffs and the Adoption of Clean Technology under Asymmetric Information" (withTaizo Takeno), Canadian Journal of Economics, Volume 40, Issue 4, 1100-1117, November 2007.

• "Increasing Returns, Multinationals and the Geography of Preferential Trade Agreements," Journal of International Economics,Volume 56, Issue 2, 329-358, March 2002.

• "Market Collusion and the Politics of Protection," European Journal of Political Economy,Volume 17, Issue 4, 817-833, November 2001.

• "A Theory of Trade Policy Leadership," (with Daniel E. Coates), Journal of Development Economics Vol. 65, No. 1, 1-29, June 2001.

• "Optimal International Trade Agreements and Dispute Settlement Procedures," European Journal of Political Economy,Vol. 72, No. 2, 355-376, June 2001.

• "Economic Geography and Fiscal Effects of Regional Integration," (with Ian Wooton), Journal of International Economics,Vol. 52, No. 2, 331-357, December 2000.

• "Building and International Investment Framework: Comparing the Development of Trade and Investment Accords," (with John M. Kline) Transnational Corporations, Vol 6, No. 3, December 1997.

• "International Trade Rules and Environmental Cooperation under Asymmetric Information," (with Ian Wooton), International Economic Review, Vol. 38, No. 3, August 1997.

• "Cross-Border Externalities and Trade Liberalization: The Strategic Control of Pollution," (with Ian Wooton), Canadian Journal of Economics, XXVII, 4, 950-966, November 1994. (Reprinted in International Trade and the Environment, Judith M. Dean, ed., International Library of Environmental Economics and Policy Series. Ashgate, 2002)

• "International Trade Bargaining and the Most-Favored-Nation Clause," Economics and Politics, Vol 3, No. 1, 1-20, March 1991. (Reprinted in: The WTO's Core Rules and Disciplines, Volume 1, Kym Anderson and Bernard Hoekman, eds, Critical Perspectives on the Global Trading System and the WTO series, Elgar, 2006)

2. Non-refereed Journal Articles

• "What is Price Suppression in Abnormal Economic Times? Reflections in Light of the Russia–Commercial Vehicles Ruling" (with Mark Wu), World Trade Review, Vol. 19, Issue 2, 182-195, April 2020. 

• "Comment on ‘The Global Effects of Subglobal Climate Policies’," The B.E. Journal of Economic Analysis & Policy: Vol. 10: Iss. 2 (Symposium), Article 1, January 2011.

• "Allies and Friends: The Trade Policy Review of the United States 2006," The World Economy, Vol. 30, Issue 8, Page 1209-1221, August 2007.

• "A WTO Agreement on Competition Policy: Prospects and Pitfalls," USITC International Economic Review, USITC Publication 3506, March/April 2002.

• "The Return of Dependency Theory: Is Primary Commodity Specialization Bad for Development?" USITC International Economic Review, USITC Publication 3466, 17-24, September/November 2001.

3. Book Chapters and Book Reviews

• "Measuring Smartness: The Economic Impact of Targeted Sanctions against Russia" (with Daniel Ahn), in Tibor Besedes and Volker Nitsch (eds.), Disrupted Economic Relationships: Disasters, Sanctions, Dissolutions, MIT Press, forthcoming.

• "Dragons, Giants, Elephants and Mice: Evolution of the MFN Free Rider Problem in the WTO Era, " (with Anna Maria Mayda and John McClure), in Ben Zissimos (ed.), The WTO and Development, MIT Press, forthcoming.

• "Canada: No Place Like Home for Antidumping,” in Chad Bown (ed.,) The Great Recession and Import Protection: The Role of Temporary Trade Barriers. London, UK: CEPR and World Bank, 2011.

• "Multilateral Trade Negotiations," in Kenneth Reinert and Ramkishen Rajan (eds.), The Princeton Encyclopedia of the World Economy, Volume 2, Princeton University Press, 2009.

• “Globalization and the State: A View from Economics,” in James W. Skillen (ed.), Prospects and Ambiguities of Globalization: Critical Assessment at a Time of Growing Turmoil, Lexington Books, 2009. pp 55-69.

• "Prebisch-Singer Redux," (with John Cuddington and Shamila Jayasuriya), in Daniel Lederman and William F. Maloney (eds.), Natural Resources: Neither Curse nor Destiny, Stanford University Press, 2007.

• "Regional Integration, Trade, and Migration: Are Demand Linkages Relevant in Europe?" in, Jaime de Melo, Riccardo Faini, and Klaus Zimmermann, eds., Migration: The Controversies and the Evidence,Cambridge University Press, August 1999.

• "Comments on 'GATT Dispute Settlement and Cooperation,' by Dan Kovenock and Marie Thursby," Deardorff, Alan and Robert Stern, eds., Analytical and Negotiating Issues in the Global Trading System,University of Michigan Press, 1994.

• "Review of Cooperation and Governance in International Trade: The Strategic Organizational Approach, by Yarbrough, Beth V. and Robert M. Yarbrough," in Journal of International Economics, 35 (1993), 392-394.

Working Papers

• "Firm Input Choice under Trade Policy Uncertainty" (with Kyle Handley, Nuno Limao and Zhu Yu), NBER working paper #27910, September 2020. 

• "Uneven Stumbling Blocks: Latin American Regionalism Revisited," (with Anna Maria Mayda and Christian Volpe), working paper, November 2016.

• "Tariff Pass-through and Market Structure" (with Zhi Yu) working paper, July 2016.

• "Firm Heterogeneity and Environmental Regulation under National Treatment" (with Taizo Takeno), May 2014.

• "The Effects of Non-Tariff Measures on Prices, Trade, and Welfare: CGE Implementation of Policy-Based Price Comparisons" (with Soamiely Andriamananjara, Judith M. Dean, Robert Feinberg, Michael J. Ferrantino, and Marianos Tsigas) USITC Working Paper EC2004-04-A, April 2004.

• "The Political Economy of Intellectual Property Protection under TRIPs," working paper, September 2003.

• "The Rise and Fall of the Most-Favored-Nation Clause," (with Pinar Cebi), working paper, December 2001.

• "Outlook and Implications of a SADC Free Trade Agreement," (with B. Peter Rosendorff and Shamya S. Jayasuriya), working paper, April 2001.

• "On the Value of Preferential Trade Agreements in Multilateral Negotiations," Georgetown University working paper 97-22, September 1996

Professional Contributions

Associate Editor, Journal of International Economics, 2004-2021.

Refereeing for: American Economic Review, Canadian Journal of Economics, Economics and Politics, European Economic Review, European Journal of Political Economy, International Economic Review, Journal of Environmental Economics and Management, Journal of International Economics, Public Finance Quarterly, Resource & Energy Economics, Review of Economic Studies, Review of International Economics, Scandinavian Journal of Economics, Southern Journal of Economics, and The World Economy

Director, International Economics Seminar, Georgetown University, 2003, 2006-2010, 2013, 2016-17.

Recent Seminar and Conference Presentations

2018-2019

Scientific Workshop on Sanctions: Theory, Quantitative Evidence, and Policy Implications, Drexel University; Cowles FoundationSummer International Trade Policy Conference, Yale University; WTO Case Law Workshop, European University Institute. 

2017-2018

Seminar, Peterson Institute for International Economics; Seminar, Stanford University, Department of Economics; Conference presentation, Washington Area International Trade Symposium

2016-2017

Congressional testimony, Senate Banking Committee Hearing on Sanctions;  Standards Publishing Advisory Board Annual Conference (Keynote), San Diego, CA;  Southern Economics Association Meetings, Washington, DC.

 2015-2016

CESifo Venice Summer Institute, Venice, Italy; 7th Annual Conference of the Trade, Integration, and Growth Network (TIGN), Sao Paulo, Brazil; Seminar at University of Texas-Austin; Invited Speeches, UC San Diego, Harvard Kennedy School.

 2014-2015

International Conference on Free Trade Agreements and New Openness in China (Keynote), Shanghai, China; Seminar, Southern Methodist University.

 2013-2014

Conference, Stanford Center for International Development Trade; Seminars at Florida International University and George Washington University.

 2012-2013

Southern Economics Association Meetings, Atlanta, GA.

2011-2012

NBER summer institute, Cambridge MA.Yale-Princeton Conference on International Political Economy, Princeton, NJ. Seminars at University of Maryland, Peking University, Renmin University, Shanghai University of Economics and Finance, Hong Kong University.

2010-2011

NBER Summer Institute, Cambridge, MA. Seminars at Yale and University of Chicago. CEPR Conference on Political Economy, Barcelona, Spain. 

(Updated: August 2023)