“In Sorrow to Bring Forth Children:  Fertility amidst the Plague of HIV.”  Manuscript, October 2005.  PDF.  Appendix.  Data.




“The Gift of the Dying:  The Tragedy of AIDS and the Welfare of Future African Generations.”  Quarterly Journal of Economics 120 (May 2005):  243-266.  PDF.  Appendix.




“Gold into Base Metals:  Productivity Growth in the People’s Republic of China during the Reform Period.”  Journal of Political Economy 111 (December 2003):  1220-1261.




“The Razor’s Edge:  Distortions and Incremental Reform in the People’s Republic of China.”  Quarterly Journal of Economics 115 (November 2000):  1091-1135.  Data.




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“The Tyranny of Numbers:  Confronting the Statistical Realities of the East Asian Growth Experience.”  Quarterly Journal of Economics 110 (August 1995):  641-680.  JSTOR.



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“Substitution and Complementarity in Endogenous Innovation.”  Quarterly Journal of Economics 108 (August 1993):  775-807.  JSTOR.



“Invention and Bounded Learning by Doing.”  Journal of Political Economy 101 (June 1993):  443-472.  JSTOR.



“A Tale of Two Cities:  Factor Accumulation and Technical Change in Hong Kong and Singapore.”  In NBER, Macroeconomics Annual 1992.  Cambridge, MA:  MIT Press, 1992.  PDF.



“Learning by Doing and the Dynamic Effects of International Trade.”  Quarterly Journal of Economics 106 (May 1991):  369-405.  JSTOR.





“Demographic Fluctuations, Generational Welfare and Intergenerational Transfers.”  NBER Working Paper #8530, October 2001.  PDF.



“Transport, Processing and Information:  Value Added and the Circuitous Movement of Goods.”  Manuscript, May 1999.  PDF.  Appendix.




“Paasche vs. Lasypeyres:  The Elasticity of Substitution and Bias in Measures of TFP Growth.”  NBER Working Paper #6663, July 1998.  PDF.



“Alternative Measures of Productivity Growth:  A Comment on the Work of Chang-Tai Hsieh.”  NBER Working Paper #6657, July 1998.  PDF.  Data.



“Accumulation, exports and growth in high-performing Asian economies:  A comment.”  Carnegie Rochester Conference Series on Public Policy 40 (June 1994):  237-250.