1. On the benefits from rigid labor markets: norms, market failures, and social insurance;Agell;Economic Journal,1999
2. Openness, country size and government;Alesina;Journal of Public Economics,1998
3. Econometric Analysis of Panel Data;Baltagi,1995
4. Barro, R., Lee, J.-W., 1994. Data set for a panel of 138 countries. Mimeo, Harvard University.
5. Alternatives to protectionism;Cassing,1980