Lapham Research Primary Research Interests: Dynamic general equilibrium models with imperfectly competitive markets and strategic behavior applied to issues in international economics, industrial organization, and macroeconomics. Research Papers: "Productivity and the Decision to Import and Export: Theory and Evidence," with Hiroyuki Kasahara, March 2007. Revise and Resubmit at the Journal of International Economics. "Industry Restructuring, Mark-ups, and Exchange Rate Pass-Through," with Danny Leung, August 2006. "National Markets and International Relative Prices," with Marianne Vigneault, July 2001. Published Papers: "Market Power, Price Adjustment, and Inflation," with Allen Head and Alok Kumar, International Economic Review , Vol. 51, No.1, February 2010, 74-98. "Real Exchange Rate Fluctuations and the Dynamics of Retail Trade Industries on the U.S.-Canada Border," with Jeffrey Campbell, American Economic Review (2004), 1194-1206. (Technical Appendix) "A Dynamic Model of Endogenous Trade Policy," with Roger Ware, Canadian Journal of Economics, February 2001, 225-239. "Government Spending and Welfare with Returns to Specialization," with Allen Head and Michael Devereux, Scandanavian Journal of Economics, December 2000, 547-561. "Aggregate Fluctuations with Increasing Returns to Specialization and Scale," with Michael B. Devereux and Allen C. Head, Journal of Economic Dynamics and Control, April 1996, 627-656. "Monopolistic Competition, Increasing Returns, and the Effects of Government Spending," with Michael B. Devereux and Allen C. Head, Journal of Money, Credit, and Banking, May 1996, 233-254. "A Dynamic General Equilibrium Analysis of Deviations from the Laws of One Price," Journal of Economic Dynamics and Control, September 1995, 1355-1390. "Interpolation of Economic Time Series with Application to German and Swedish Data," with John S. Chipman, The Economics of Short and Unreliable Time Series, Physica-Verlag, Heidelberg, 1995, 89-139. "Tariffs and Welfare in a Dynamic Differentiated Oligopoly," Review of International Economics, 3, February 1995, 60-74. "Markov Puppy Dogs and Related Animals," with Roger Ware, International Journal of Industrial Organization, 12, December 1994, 569--593. "The Stability of Economic Integration and Endogenous Growth," with Michael Devereux, Quarterly Journal of Economics, February 1994, 299--305. "Monopolistic Competition, Technology Shocks, and Aggregate Fluctuations," with Michael B. Devereux and Allen C. Head, Economics Letters, 41, January 1993, 57-61. Current Projects: "Exchange Rate Movements and Firm Dynamics in Canadian Retail Industries," with Jen Baggs, Eugene Beaulieu, and Loretta Fung "Exports, Imports and Dynamic Complementarities," with Hiro Kasahara "Consumer Search and Exchange Rate Pass-Through," with Allen Head "Persistence with Real and Nominal Rigidities," with Jeffrey Campbell "Using Import Invoicing Data to Examine International Price Differences"