Remembering Emma Lazarus, Society, (March/April 2010).
What's the Big Idea? The Third Generation of Policies for Economic Growth with Lant Pritchett, Economia (Fall 2002).
Does Indonesia Have a 'Low Pay' Civil Service? with Deon Filmer, Bulletin of Indonesian Economic Studies (2001).
Why Not Africa? with Richard Freeman, NBER Working Paper No. W6942 (February 1999).