3 IZA Discussion Papers
IZA Discussion Paper No. 4499
published in: B.E. Journal of Economic Analysis and Policy: Contributions to Economic Analysis and Policy . 2009, 9 (1)
IZA Discussion Paper No. 4498
published in: Institutional Microeconomics of Development, edited by Timothy Besley and Raji Jayaraman, Cambridge: MIT Press, 2010.
IZA Discussion Paper No. 4497
published in: Journal of Public Economics, 2010, 94 (3-4), 197-221