2 IZA Discussion Papers
IZA Discussion Paper No. 15744
published in: Kumbhakar, S.C., Sickles, R.C., Wang, H.J. (eds), Advances in Applied Econometrics. Advanced Studies in Theoretical and Applied Econometrics, Springer, Cham, 2024, 55, 239 - 258
IZA Discussion Paper No. 3033
published in: Macroeconomic Dynamics, 2009, 13 (1), 81-106