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David Hummels

David Hummels

Distinguished Professor of Economics


Ph.D., Economics, University of Michigan
M.A., Economics, University of Michigan
B.A. Economics and Political Science, University of Colorado


David Hummels teaches courses in International Economics, and has won multiple teaching awards at the graduate and undergraduate level. His research focuses on a broad range of issues in international trade, including: offshoring and its impact on labor markets, product differentiation, barriers to trade and the broader impacts of aviation, infrastructure, and trade facilitation on trade and economic development. He has published 4 books and over 40 research articles in major economic journals including American Economic Review, Journal of Political Economy, Quarterly Journal of Economics, Review of Economics and Statistics, the Journal of International Economics, and the Journal of Economic Perspectives

Professor Hummels is a Research Associate of the National Bureau of Economic Research, and served as Dean of the Mitchell E. Daniels, Jr. School of Business at Purdue from 2014-2023. He has worked as a consultant for and visiting scholar at a wide variety of central banks, development banks and policy institutes around the world.

Journal Articles

  • Hummels, D., Munch, J, & Xiang, C. (2018). "Offshoring and Labor Markets." Journal of Economic Literature vol. forthcoming
  • Hummels, David; Lee, Kwan Yong (2018). "The Income Elasticity of Import Demand: Micro Evidence and an Application." Journal of International Economics vol. forthcoming
  • Hummels, D., Jorgensen, R, Munch, J, & Xiang, C (2014). "The Wage Effects of Offshoring: Evidence from Danish Matched Worker-Firm Data." American Economic Review vol. 104 (6), 1597-1629.
  • Hummels, D. and Schaur, G. (2013). "Time as a Trade Barrier." American Economic Review vol. 103 2935-59.
  • Cristea, A., Hummels, D., Puzzello, L., and Avetisyan, M. (2013). "Trade and the Greenhouse Gas Emissions from International Freight Transport." Journal of Environmental Economics and Management vol. 65 153-173.
  • Hummels, D, Munch, J, & Xiang, C (2013). "Education and Labor Market Policies in an Offshoring Global Economy." Nordic Economic Policy Review 75-98.
  • Hummels, D., Munch,J., Skipper,L., Xiang C. (2012). "Offshoring, Transition and Training: Evidence from Danish Matched Worker Firm Data." American Economic Review P&P vol. 102 424-428.
  • Hummels, David and Schaur, Georg (2010). "Hedging Price Volatility Using Fast Transport." Journal of International Economics vol. 82 15-25.
  • Choi, Yo Chul, Hummels, David and Xiang, Chong (2009). "Explaining Import Quality: The Role of the Income Distribution." Journal of International Economics vol. 77 265-275.
  • Hummels, David, Lugovskyy,Volodymyr and Skiba, Alexandre (2009). "The Trade Reducing Effects of Market Power in International Shipping." Journal of Development Economics vol. 89 84-97.
  • Hummels, D & Lugovskyy, V. (2009). "International Pricing in a Generalized Model of Ideal Variety." Journal of Money Credit and Banking vol. 41 (777), 3-33.
  • Hillberry, R. & Hummels, D. (2008). "Trade Responses to Geographic Frictions: A Decomposition Using MicroData." European Economic Review (52), 557-550.
  • Hummels, David (2007). "Transportation Costs and International Trade in the Second Era of Globalization." Journal of Economic Perspectives | Related Website |
  • Hummels, David (2007). "International Transportation Costs and Trade In the Second Era of Globalization." Journal of Economic Perspectives vol. 21 131-154.
  • Hertel T, Hummels D, Ivanic M, et al. (2007). "How Confident Can We be of CGE-Based Assessments of Free Trade Agreements?" Economic Modelling vol. 4 (24), 611-635.
  • Hummels, D., & Lugovskyy, V (2006). "Are Matched Partner Trade Statistics Usable Measures of Transportation Costs?" Review of International Economics vol. 14 (1),
  • Hummels, David, Lugovskyy, Vova (2006). "Usable Data? Matched Partner Trade Statistics as a Measure of International Transportation Costs." Review of International Economics | Related Website |
  • Hummels, D., & Klenow, P. (2005). "The Variety and Quality of a Nation's Exports." American Economic Review vol. 95 (3), 704-723.
  • Hummels, David, Skiba, Alexandre (2004). "A Virtuous Circle? Regional Tariff Liberalization and Scale Economies in Transport." Harvard University Press | Related Website |
  • Haverman, Jon, Hummels, David (2004). "Alternative Hypotheses and the Volume of Trade: Evidence on the Extent of Specialization." Canadian Journal of Economics
  • Hummels, D., & Skiba, A. (2004). "Shipping the Good Apples Out? An Empirical Confirmation of the Alchian-Allen Conjecture." Journal of Political Economy vol. 112 (6), 1384-1402.
  • Haveman, J., & Hummels, D. (2004). "Alternative Hypotheses and the Volume of Trade: The Gravity Equation and the Extent of Specialization." Canadian Journal of Economics vol. 37 (1), 199-218.
  • Hummels, D. (2004). "Review of Free Trade Under Fire (by Douglas Irwin)." Journal of Economic Literature 521-522.
  • Hillberry, R., & Hummels, D. (2002). "Intra-National Home Bias: Some Explanations." Review of Economics and Statistics vol. 85 (4), 1089-1092.
  • Hummels, D. (2002). "Review of Globalization and the Theory of Input Trade (by Ron Jones)." Journal of International Economics Vol 57, 491-493.
  • Hummels, D. (2002). "Review of Fragmentation: New Production Patterns in the World Economy (by Arndt and Kierzkowski)." Journal of Economic Geography Vol 2, 368-369.
  • Hummels, D., Ishii, J., & Yi, K. (2001). "The Nature and Growth of Vertical Specialization in World Trade." Journal of International Economics vol. 54 (1), 75-96.
  • Hummels, D., Rapaport, D., & Yi, K. (1998). "Vertical Specialization and the Changing Nature of World Trade." Economic Policy Review Federal Reserve Bank of New York. 79-99.
  • Hummels, D., & Haveman, J. (1998). "Trade Creation and Trade Diversion: New Empirical Results." Journal of Transnational Management Development vol. 3 57-72.
  • Hummels, D., & Levinsohn, J. (1995). "Monopolistic Competition and International Trade: Reconsidering the Evidence." Quarterly Journal of Economics Worth, N. Y.. vol. 110 (3), 799-836.
  • Hummels, D., & Stern, R. (1994). "Evolving Patterns of North American Merchandise Trade and Foreign Direct Investment 1960-1990." World Economy vol. 17 29-May.
  • Hummels, D., & Levinsohn, J. (1993). "Product Differentiation as a Source of Comparative Advantage." American Economic Review Papers and Proceedings vol. 83 445-449.
  • Hummels, D., & Brown-Kruse, J. (1993). "Gender Effects in Laboratory Public Goods Contribution: Do Individuals Put Their Money Where Their Mouth Is?" Journal of Economic Behavior and Organization vol. 22 255-267.

Book Chapters

  • Hillberry, Russel, Hummels, David (2017). "Tom Hertel’s Influence and Its Lessons For Academic Inquiry." World Scientific Press Co. | Related Website |
  • Hillberry, Russel, Hummels, David (2012). "Trade Elasticity Parameters for a CGE Model." Elsevier | Related Website |
  • Hummels, David (2009). "Transportation Costs and Adjustments to Trade." World Bank and Centre for Economic Policy Research | Related Website |
  • Ferrarini, Benno, Hummels, David (2009). "Asia and Global Production Networks: Implications for Trade, Incomes and Economic Vulnerability." Edward Elgar Publishing | Related Website |
  • Hummels, David, and Uchida, Yoko (2009). "Vertical Specialization: Evidence from East Asia 1975-2000." JETRO-IDE and Edward Elgar
  • Hummels, David, and Puzzello, Laura (2008). "Some Evidence on the Nature and Growth of Input Trade." IDE-JETRO Conference | Related Website |
  • Douglas H. Brooks and David Hummels, eds. (2007). "Trends in Asian Trade: Implications for Transport Infrastructure and Trade Costs." Edward Elgard Publishers | Related Website |
  • Hummels, David (2007). "Calculating Tariff Equivalent for Time in Trade." Nathan Associates Inc | Related Website |

Working Papers

  • Hummels, D. L., Munch, J., & Xiang, C. (2022). "No Pain, No Gain: Work Demand, Work Effort, and Worker Health." Review of Economics and Statistics (Conditionally Accepted)
  • Hertel, Thomas, Hummels, David, Walmsley, Terrie "Developing a GTAP-Based Multi-Region, Input-Output Framework for Supply Chain Analysis."
  • Hertel, Thomas, Hummels, David, Walmsley,Terrie "The Vulnerability of the Asian Supply Chain to Localized Disasters."
  • Killer Jobs

    It may seem obvious to those who suffer the most, but a working paper issued by the National Bureau of Economic Research by Krannert economics professors Chong Xiang and David Hummels provides confirmation: Employees under prolonged workplace pressures face serious consequences to their health.

    Full story: Killer Jobs

  •  Exhausted Person

    Krannert economists link higher work demand to potentially serious health risks

    Employees under prolonged workplace pressures face serious consequences to their health, according to a working paper issued by the National Bureau for Economic Research coauthored by Krannert professors David Hummels and Chong Xiang.

    Full story: Krannert economists link higher work demand to potentially serious health risks

  • Cyclists on road surrounded by greenery

    Celebrating America

    David Hummels, Distinguished Professor of Economics, recently finished a cross-country cycling trip. As America commemorates its independence, read his recap of the coast-to-coast journey.

    Full story: Celebrating America

  • David Hummels
    Hummels pedals across America
    Since he was 13 years old, Distinguished Professor of Economics David Hummels has dreamed of biking across the country. After serving as Dr. Samuel R. Allen Dean of the Daniels School from 2014-2023, he decided to live out the dream as he finishes his sabbatical.
  • Union Gateway
    Student summer interns wanted for safe campus project
    ProjectX Safe Campus is a virtual five-week consulting internship that will allow student teams to work on solutions to make for a meaningful and safe on-campus experience. Students from across campus are eligible to sign up as individuals or in teams of two to four students, with a recommendation that at least one team participant is earning a major or minor from the Krannert School of Management. Deadline to sign-up is June 4th.
  • Purdue launches online analytics degree
    Purdue University’s Krannert School of Management will begin offering an online Master’s in Business Analytics in fall 2020. The degree is aimed at working professionals. Students will receive broad exposure to various functional areas of business and how they use information to make better-informed decisions. The U.S. Bureau of Labor Statistics estimates the need for business analysts to increase 14% by 2024, and this degree will prepare participants for a wide variety of roles within the industry.
  • Great Learning launches post-grad digital business program in collaboration with Purdue's Krannert School
    World class future-oriented business education now accessible to management aspirants through Great Learning's launch of the Post Graduate Diploma in Digital Business Program in collaboration with Purdue University's Krannert School of Management and Purdue Online. Great Learning is India’s leading ed-tech company and collaborates with leading academic institution's in more than 15 countries.
  • David Hummels
    Purdue trustees approve Krannert School named and distinguished faculty positions
    The Purdue University Board of Trustees on Friday (June 14) ratified seven named and distinguished faculty positions, including three within the Krannert School of Management. David Hummels was named a Distinguished Professor of Economics, Mohit Tawarmalani was named the Allison and Nancy Schleicher Chair in Management, and Annabelle Feng was named the John and Donna Krenicki Chair in Operations Management. Trustees also issued resolutions of appreciation for friends of the university whose names will be added to campus facilities.
  • John and Donna Krenicki
    Multimillion-dollar gift supports Purdue business analytics leadership
    WEST LAFAYETTE, Ind. — Purdue University alumnus John Krenicki Jr. and his wife, Donna, have given a $5 million gift to a business analytics center in the Krannert School of Management. As a result, the Business and Information Analytics Center will now be known as the John and Donna Krenicki Center for Business Analytics and Machine Learning, pending Board of Trustees approval.
  • Sam Allen
    Fortune 500 CEO and Purdue alumnus Sam Allen endows Krannert School deanship
    A Fortune 500 CEO and Purdue University alumnus has created an endowed deanship at his alma mater’s business school. Samuel Allen, chairman and chief executive officer of Deere & Co., made a $5 million gift to name the deanship and provide resources for strategic initiatives within the school. The position will be known as the Dr. Samuel R. Allen Dean of the Krannert School of Management.
  • Global business school powerhouses to offer dual degree program in business analytics
    Leading Indian business school NMIMS is teaming up with Purdue University’s Krannert School of Management to offer students two degrees in the rapidly growing field of analytics. Upon successful completion of the two-year program, participants will earn a Master of Business Administration in decision science and analytics from NMIMS and a Master of Science in business analytics and information management (MS BAIM) from Purdue.
  • David Hummels
    What will the next 150 years bring for the Krannert School of Management?
    The sesquicentennial celebration marks a time for Purdue to renew its commitment to growth, discovery and innovation. What giant leaps will the next 150 years bring as Purdue continues its drive to meet the world's future challenges? In this new monthly Purdue Today series, Purdue's deans will share their thoughts on the future of their college over the next 150 years. The series begins with David Hummels, dean of Krannert School of Management.
  • Michael Lewis
    Author of the Hollywood hits ‘The Blind Side’ and ‘Moneyball’ to speak at Krannert
    Michael Lewis, best-selling author of “The Blind Side” and “Moneyball,” will engage in a Q&A session with Krannert Dean David Hummels at 7 p.m. Oct. 16 in Stewart Center’s Loeb Playhouse. Lewis released his new book, “The Fifth Risk,” Oct. 2. “The Fifth Risk” will take a close look at the internal upheaval in the departments of Energy, Agriculture and Commerce that took place during the transition from President Barack Obama to President Donald Trump.
  • Data Science for Business and Economics Conference
    Krannert hosts inaugural Data Science for Business and Economics Conference
    Hosted in May by Krannert's Business Information and Analytics Center (BIAC), Purdue's inaugural conference on Data Science for Business and Economics featured speakers from a variety of academic disciplines whose research explores the use of data science to solve real-world problems.

Phone: (765) 496-7688
Office: RAWL 4007

Quick links

Personal website

Area(s) of Expertise

Airlines, Economics Education, Future of Work, International Trade, Microeconomics, Transportation