in export mix and by firm size. In general, export mix changes are associated with improvements on productivity, although … export mix are more important for firm growth in large firms, but not in terms of productivity. In contrast, SMEs can have a … higher potential for productivity improvement through export product churning but this does not translate necessarily in …

generating endogenous changes in local productivity. In this paper, we document and quantify the importance of this channel by … delays in the construction of highways, we empirically show that productivity grows in places with better transportation … total factor productivity. Then, by calibrating our model on census data between 1998 and 2018, we find that new highways …