2 IZA Discussion Papers
IZA Discussion Paper No. 4329
published in: Econometrica, 2010, 78(5), 1569-1591
IZA Discussion Paper No. 843
published in: T. Kehoe, T.N. Srinivasan, and J. Whalley (eds.)- Frontiers in Applied General Equilibrium, Cambridge, 2005, 277 - 340