Previous empirical studies have found little evidence that voters reward incumbent members of Congress for bringing federal dollars to their district. One explanation for these findings is that incumbents who are in danger of losing reelection exert more effort to obtain federal funds. To...

Previous studies of congressional spending have typically found a large positive effect of challenger spending but little evidence for effects of incumbent spending. Those studies, however, do not adequately control for inherent differences in vote-getting ability across candidates. This paper...

This paper empirically investigates the possible market power effects of vertical integration proposed in the theoretical literature on vertical foreclosure. It uses a rich data set of cement and ready-mixed concrete plants that spans several decades to perform a detailed case study. There is...

We investigate learning by doing using detailed data from a major auto producer’s assembly plant. We focus on the acquisition, aggregation, transmission, and embodiment of the knowledge stock built through learning. We find that most knowledge was not retained by plant workers despite their...