Essays in Empirical Corporate Finance.

Summary This thesis consists of four articles. The first article with Johan Hombert shows that when banking relationships are affected, this reduces the number of innovative firms and also leads to an increase in the geographic mobility of inventors, who leave states where banking relationships are degraded. The second article is a paper with Claire Célerier highlighting the role of supply in the phenomenon of unbanking of the poor in the United States. The third article studies innovation externalities and shows that when some firms innovate less, other local firms innovate less in response. This effect decreases rapidly with distance. The fourth paper, in collaboration with Olivier Dessaint, shows that managers systematically respond to liquidity shocks close to them by temporarily increasing their treasury.