This article analyzes the manifold situations in which the efficient-market hypothesis (EMH) has influenced — or has failed to influence — federal securities regulation and state corporate law, and the prospective roles for the EMH in these contexts. In federal securities regulation, the EMH...

A simple contracting environment with a creditor who has wealth and a entrepreneur who has a two-period investment project is studied. After observing the partial completion of the project at the end of first period, the creditor may decide whether to refinance it or liquidate it. Contracting is...

I model an open-end mutual fund investing in illiquid assets and show that the fund's endogenous cash management can generate shareholder runs even with a flexible NAV. The fund optimally re-builds its cash buffers at time t 1 after outflows at t to prevent future forced sales of illiquid...

We identify and track over time the factors that make the financial system vulnerable to fire sales by constructing an index of aggregate vulnerability. The index starts increasing quickly in 2004, before most other major systemic risk measures, and triples by 2008. The fire-sale-specific...

Average leverage is often used as a measure of risk. However, average leverage in a limited liability context should not be computed as a simple arithmetic average of the underlying constituents. In fact, using a simple arithmetic average can give misleading results. For example, the simple...

Recently a new type of institution has emerged, crowd funders. These entities: 1) channel capital to create intellectual property; 2) gather information on project and entrepreneur quality; and 3) gauge demand information directly from individuals to improve the efficiency of capital allocation....

We document a major mechanism – inorganic growth – which drives a wedge between micro-study effects of credit supply shocks and aggregate effects. Exploiting a quasi-exogenous positive shock to credit supply, we document that affected firms borrow larger amounts and exhibit stronger asset,...

We explore empirically how the time-varying allocation of credit across firms with heterogeneous credit quality matters for financial stability outcomes. Using firm-level data for 55 countries over 1991-2016, we show that the riskiness of credit allocation, captured by Greenwood and Hanson...

We discuss a general dynamic replication approach to counterparty credit risk modeling. This leads to a fundamental jump-process backward stochastic differential equation (BSDE) for the credit risk adjusted portfolio value. We then reduce the fundamental BSDE to a continuous BSDE. Depending on...

I model an open-end mutual fund investing in illiquid assets and show that the fund’s endogenous cash management can generate shareholder runs even with a flexible NAV. The fund optimally re-builds its cash buffers at time t + 1 after outflows at t to prevent future forced sales of illiquid...