We analyze equilibrium leverage dynamics in a dynamic tradeoff model when the firm is unable to commit to a leverage policy ex ante. We develop a methodology to characterize equilibrium equity and debt prices in a general jump-diffusion framework, and apply our approach to the standard Leland (1998) setting. Absent commitment, the leverage ratchet effect (Admati et al. 2015) causes firms to tak...

This paper provides a theory of endogenous leverage through rehypothecation in collateralized intermediation. Overcollateralization with an rehypothecation option arises as an optimal contract form between broker dealers and their clients to mitigate adverse selection on collateral quality. Such contract prevents the broker dealers from taking advantage of private information on collateral qual...

Financial frictions can reduce aggregate productivity, in particular when firms with high productivity cannot borrow against their profits. This paper investigates the quantitative importance of this form of borrowing constraint using a large panel of firms in Japan. The firms are young and unlisted, precisely the firms for which credit frictions are expected to be the most severe. In this data...

We review the theory of leverage developed in collateral equilibrium models with incomplete markets. We explain how leverage tends to boost asset prices, and create bubbles. We show how leverage can be endogenously determined in equilibrium, and how it depends on volatility. We describe the dynamic feedback properties of leverage, volatility, and asset prices, in what we call the Leverage Cycle...

We empirically investigate predictions from alternative intermediary asset pricing theories. The theories distinguish themselves in their use of intermediary equity or leverage as pricing factors or forecasting variables. We find strong support for a parsimonious dynamic pricing model based on broker-dealer leverage as the return forecasting variable and shocks to broker-dealer leverage as a cr...

We investigate intermediary asset pricing theories empirically and find strong support for intermediary book leverage as the relevant state variable. A parsimonious dynamic pricing model that uses detrended broker-dealer leverage as a price of risk variable, and innovations to broker-dealer leverage as pricing factor is shown to perform well in time series and cross sectional tests of a wide va...

Many stylized facts of leverage, trading, and asset prices follow from a frictionless general equilibrium model that features agents’ heterogeneity in endowments and habit preferences. Our model predicts that aggregate debt increases in good times when stock prices are high, return volatility is low, and levered agents enjoy a “consumption boom.” Our model is consistent with poorer agents borro...

The He and Krishnamurthy models imply that the financial intermediary sector – measured broadly, and not just focused for example on hedge funds – has leverage that rises during crisis. The prediction is due to a mix of general equilibrium and corporate finance arguments. First, in the model, in general equilibrium the intermediary sector must retains the bulk of risk exposure from intermediate...