Research

• "Effects of Low Skilled Immigration on U.S. Natives: Evidence from Hurricane Mitch" (with Mutlu Yuksel), Mimeo, August 2008.NEW

• "Training Disadvantaged Youth in Latin America: Evidence from a Randomized Trial" (with Orazio Attanasio and Costas Meghir), NBER Working Paper No. 13931, April 2008 NEW

• "Factor Adjustments after Deregulation: Panel Evidence from Colombian Plants" (with Marcela Eslava, John Haltiwanger and Maurice Kugler), Forthcoming in REVIEW OF ECONOMICS AND STATISTICS, 2009.

• "The Labor Market Effects of Payroll Taxes in Developing Countries: Evidence from Colombia" (with Maurice Kugler) Forthcoming in ECONOMIC DEVELOPMENT AND CULTURAL CHANGE, January 2009.

• "Rural Windfall or New Resource Curse? Coca, Income, and Civil Conflict in Colombia" (with Joshua Angrist) LEAD ARTICLE IN REVIEW OF ECONOMICS AND STATISTICS, May 2008, 90(2): 191-215.

• "Effects of Employment Protection on Job and Worker Flows: Evidence from the 1990 Italian Reform" (with Giovanni Pica), LABOUR ECONOMICS, February 2008, 15(1): 78-95. NEW

• "Do Employment Protections Reduce Productivity? Evidence from U.S. States" (with David Autor and William Kerr), ECONOMIC JOURNAL, June 117: F189_F217. NEW

• "The Effects of Employment Protection in Europe and the U.S." OPUSCLE, CREI, Number 18, February 2007. NEW

   

• "Employment Consequences of Restrictive Permanent Contracts : Evidence from Spanish Labor Market Reforms" (with Juan F. Jimeno and Virginia Hernanz)

  CEPR Discussion Paper No. 3724, May 2003 (revision in JOURNAL OF THE EUROPEAN ECONOMIC ASSOCIATION).

• "Do Recent Latino Immigrants Compete for Jobs with Native Hispanics and Earlier Latino Immigrants?" (with Mutlu Yuksel), Mimeo, May 2008. NEW

• "Trade Reforms and Market Selection: Evidence from Manufacturing Plants in Colombia" (with Marcela Eslava, John Haltiwanger and Maurice Kugler),

  Mimeo, April 2008. NEW

   

• "Plant Turnover and Structural Reforms in Colombia" (with Marcela Eslava, John Haltiwanger and Maurice Kugler)

  IMF STAFF PAPERS, November 2006, 50: 58-75.

• "Doctors without Borders? Relicensing Requirements and Negative Selection in the Market for Physicians" (with Robert Sauer)

        JOURNAL OF LABOR ECONOMICS, July 2005, 23(3): 437-466.

• "Wage-Shifting Effects of Severance Payments Savings Accounts in Colombia"

        JOURNAL OF PUBLIC ECONOMICS, February 2005, 89(2-3): 487-500.

• "The Effect of Structural Reforms on Productivity and Profitability Enhancing Reallocation: Evidence from Colombia" (with Marcela Eslava, John Haltiwanger and Maurice Kugler)

        JOURNAL OF DEVELOPMENT ECONOMICS, December 2004, 75(2): 333-371.

• "The Effects of Tariffs and Real Exchange Rates on Job Reallocation: Evidence from Latin America" (with John Haltiwanger, Maurice Kugler, Alejandro Micco and Carmen Pages)

        JOURNAL OF POLICY REFORM, December 2004, 7(2): 201-218.

• "How do Firing Costs affect Worker Flows in a World with Adverse Selection?" (with Gilles Saint-Paul)

         JOURNAL OF LABOR ECONOMICS, July 2004, 22(3): 553-584.

• "Employee Referrals and Efficiency Wages"

        LABOUR ECONOMICS, October 2003,10(5): 531-556.

• "Protective or Counter-Productive? Labor Market Institutions and the Effect of Immigrations on EU Natives" (with Joshua Angrist)

        ECONOMIC JOURNAL, June 2003,113: F302-F331.

                Reprinted in A. Morris and S. Streicher, Eds., CROSS-BORDER HUMAN RESOURCES, LABOR AND EMPLOYMENT ISSUES, Kluwer Law International.

                and cited in THE ECONOMIST'S ECONOMICS FOCUS: "Displacement Activity"

• "The Impact of Firing Costs on Turnover and Unemployment :Evidence from the Colombian Labor Market Reform"

        INTERNATIONAL TAX AND PUBLIC FINANCE, August 1999, 6(3): 389-410.

                Reprinted in E. Bour, D. Heymann and F. Navajas, Eds., LATIN AMERICAN ECONOMIC CRISES: TRADE AND LABOUR, Palgrave MacMillan.

• "Effects of Employment Protection and Product Market Regulations on the Italian Labor Market" (with Giovanni Pica)

        in J. Messina, C. Michelacci, J. Turunen, and G. Zoega, eds., LABOUR MARKET ADJUSTMENTS IN EUROPE. Edward Elgar.