trends in empirical matching functions. We investigate whether these trends simply arise from omitted variable bias … variable bias. As suggested by this result, we present evidence that empirical matching functions can be interpreted as … versions of the law of motion for vacancies: the coefficients in matching functions coincide with the coefficients in the law …

trends in empirical matching functions. We investigate whether these trends simply arise from omitted variable bias … variable bias. As suggested by this result, we present evidence that empirical matching functions can be interpreted as … versions of the law of motion for vacancies: the coefficients in matching functions coincide with the coefficients in the law …

inequality of earnings and income levels. In an extended version of the Roy-model we consider migration costs, which tend to grow … migration from 143 sending countries all over the world into the 6 main receiving countries in the OECD from 1975 to 2000, we … at a given income differential. Finally, migration barriers and distance affect the selection bias positively." (Author …

inequality of earnings and income levels. In an extended version of the Roy-model we consider migration costs, which tend to grow … migration from 143 sending countries all over the world into the 6 main receiving countries in the OECD from 1975 to 2000, we … at a given income differential. Finally, migration barriers and distance affect the selection bias positively." (Author …