We propose a new theory of systemic risk based on Knightian uncertainty (or "ambiguity"). We show that, due to uncertainty aversion, beliefs on future asset returns are endogenous, and bad news on one asset class induces investors to be more pessimistic about other asset classes as well. This...

We present a novel source of disagreement grounded in decision theory: ambiguity aversion. We show that ambiguity aversion generates endogenous disagreement between a firm's insider and outside shareholders, creating a new rationale for corporate governance systems. In our paper, optimal...

The increasingly large role played by financial intermediaries, such as venture capitalists and angels, in nurturing entrepreneurial firms and in promoting product market innovation has led to great research interest in the area of entrepreneurial finance and innovation. This paper introduces...

We model firms' choice between bank loans and publicly traded debt, allowing for debt renegotiation in the event of financial distress. Entrepreneurs, with private information about their probability of financial distress, borrow from banks (multiperiod players) or issue bonds to implement...

The authors model reputation acquisition by investment banks in the equity market. Entrepreneurs sell shares in an asymmetrically informed equity market either directly or using an investment bank. Investment banks, who interact repeatedly with the equity market, evaluate entrepreneurs' projects...

This article studies mergers between competing firms and shows that while such mergers reduce the level of product market competition, they may have an adverse effect on employee incentives to innovate. In industries where value creation depends on innovation and development of new products,...