characteristics and efficiency as the main determinants of their productivity. The application of this analysis to the European market … shows that productivity differences among flag carriers could explain the governments' different views about deregulation at …

enhancing the assignment of workers to jobs in the face of firm productivity heterogeneity and skill-biased technological change …. It shows that in order to do so policy needs to be a function of the properties of the firm’s productivity distribution … emerging from the analysis is that the degree of firm productivity heterogeneity, in terms of skewness and variance, matters …

panel of industries in 17 countries from 1993-2007. We find that industrial robots increased both labor productivity and ….37 percentage points. We also find that robots increased both wages and total factor productivity. While robots had no significant …

We propose a modification of kernel time series regression estimators that improves efficiency when the innovation …

consistent. Furthermore, two kinds of asymptotic efficiency of the selected model are proved. Both simulated and real data are …