4 IZA Discussion Papers
IZA Discussion Paper No. 7154
IZA Discussion Paper No. 4986
published in: Quantitative Economics, 2014, 5 (1), 175-194
IZA Discussion Paper No. 1177
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