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Federal Reserve Bank of New York Staff Reports Broker-Dealer Risk Appetite and Commodity Returns

This paper shows that the risk-bearing capacity of U.S. securities brokers and dealers is a strong determinant of risk premia in commodity derivatives markets. Commodity derivatives are the principal instrument used by producers and purchasers of commodities to hedge against commodity price risk. Broker-dealers play an important role in this hedging process because commodity derivatives are traded primarily over the counter. I capture the limits of arbitrage in this market in a simple asset pricing model where producers and purchasers of commodities share risk with broker-dealers who are subject to funding constraints. In equilibrium, the price of aggregate commodity risk decreases in the relative leverage of the broker-dealer sector. Empirical evidence from fourteen commodity markets lends substantial support to the model’s predictions. Fluctuations in risk-bearing capacity have particularly strong forecasting power for energy returns, both in sample and out of sample.