Professor of International Economics

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I was raised in Minneapolis and earned my BA and PhD degrees in Economics from Boston College. My first position after graduate school was in Canada at the University of Western Ontario. In 1990, I moved to the University of Colorado, Boulder and did my duty as head of department from 1991 until 1995. I suffered through a co-editorship of the Journal of International Economics during 1999-2001, have been an NBER research associate since 1990 and a CEPR fellow since 1996. Normal life has been interspersed with visiting appointments in Ghana, Australia, New Zealand, Germany, Ireland, Israel, Spain, Switzerland, Denmark, and Japan. More recently, I have been learning more about East Asia with a number of visits to Japan, China, Hong Kong and Singapore.

My principal interests are in the field of international trade. My research for the last 25 years has concentrated on the location, production, and welfare effects of large-scale firms and multinational corporations. I have worked on analytical models, numerical simulation models, and empirical estimation. Many years of work researching multinational firms culminated in a book on the role of multinationals in the international economy, and was published by the MIT press in the summer of 2002. While continuing to work on multinationals and the non-rivaled and non-excludable properties of knowledge capital in particular, I have more recently worked on a diverse set of issues including export-platform foreign direct investment, fragmentation and trade at the extensive margin, and selection and learning effects in multinational firms explaining their higher wages. My most recent work focuses on non-homothetic preferences and explores the role of income elasticities in explaining empirical and policy puzzles.

Outside of academia, I served as a researcher and advisor during the mid 1980's for the McDonald Royal Commission in Canada, which laid the foundation for the US-Canada free trade agreement. In the early 1990's, I worked with Mexican economists on the North American auto industry, attempting to estimate the effects of the (then) proposed North American free trade area (NAFTA) on the location of production and employment within North America. I also served as an advisor to the Danish Ministry of Trade and Industry on a variety of projects. The World Bank, the Intra-American Development Bank and the EU Commission are some of the other institutions that call occasionally. I often attempt to present the pro-globalization case in anti-globalization conferences, after which I enjoy a hard bike ride in the mountains followed by research into local micro brews.

I am married to economist and economic historian Ann Carlos, a native of Ireland. As many of our friends know, our son Daniel died in May 2010. Our son Peter is an emergency and back-country-rescue paramedic living in Boulder, while our daughter Hilary is working on a PhD doing research in the dry valleys of Antarctica. I remain a avid cyclist trying to keep up with Hilary, enjoy scuba diving trips with Peter and Ann, and skiing with all of them. My retirement research will be on-site case studies of coral reef ecology as a determinant of trade in diving tourism.