1. The economic return to schooling in the West Bank and Gaza Strip;J Angrist;American Economic Review,1995
2. Mercado formal de trabalho: compara��o dos microdados da Rais e da PNAD;J De Negri;Rio de Janeiro: IPEA,2001
3. Efficiency wages and the inter-industry wage structure;A Krueger;Econometrica, v,1988