Academics and regulators posit that mutual funds that engage in significant liquidity transformation can be systemically risky because investors in these funds redeem at the fund's net-asset-value and compete for a common fund liquidity pool. An alternative, more general explanation is that all...

Pecuniary externalities in models with financial friction justify macroprudential policies for preventing economic agents' excessive risk taking. We extend the Diamond and Rajan (2012) model of banks with the production factors and explore how a pecuniary externality affects a bank's leverage....

We develop a general equilibrium model of informational interdependence between financial markets and the real economy, linking economic uncertainty to information production and aggregate economic activities. The mutual learning between financial markets and the real economy creates a strategic...

We build a model in which financial intermediaries provide insurance to households against a liquidity shock. Households can also invest directly on a financial market if they pay a cost. In equilibrium, the ability of intermediaries to share risk is constrained by the market. This can be...

We build a model in which financial intermediaries provide insurance to households against a liquidity shock. Households can also invest directly on a financial market if they pay a cost. In equilibrium, the ability of intermediaries to share risk is constrained by the market. This can be...

In many models of financial intermediation, markets reduce welfare because they limit the amount of risk-sharing intermediaries can offer. In this paper we study a model in which markets also promote investment in a productive technology. A trade-off between risk sharing and growth arises...

In an overlapping generations economy with (incomplete) financial markets but no intermediaries, there is underinvestment in safe assets. In an economy with intermediaries and no financial markets, accumulating reserves of safe assets allows returns to be smoothed, nondiversifiable risk to be...