We model the impact that credit constraints and market risk have on the vertical relationships between firms in the supply chain. Firms which might face credit constraints in future investments become endogenously risk averse when accumulating pledgable assets. In the short run, the optimal...

We present a theory of entrepreneurial entry (and exit) decisions. Knowing their own managerial talent, entrepreneurs decide which market to enter, where markets differ in size. We obtain a striking sorting result: Each entrant in a large market is more efficient than any entrepreneur in a...

We develop a theoretical framework of trade on a platform on which buyers and sellers interact, and compare the impact of different platform ownership structures. If two-sided network effects are strong, monopoly ownership induces more trade than dispersed ownership and is therefore socially...