Halpern, László; Koren, Miklós; Szeidl, Adam - 2005
responsible for 30% of the growth in aggregate total factor productivity in Hungary during the 1990s. About 50% of this effect is …What is the effect of imports on productivity? To answer this question, we estimate a structural model of producers … productivity through expanding variety as well as improved input quality. The model leads to a production function where the total …