Abstract:
We show, in an exchange economy with default, liquidity constraints and no aggregate uncertainty, that state prices in a complete markets general equilibrium are a function of the supply of liquidity by the Central Bank. Our model is derived along the lines of Dubey and Geanakoplos (1992). Twoagents trade goods and nominal assets (Arrow-Debreu (AD) securities) to smooth consumption across periods and future states, in the presence of cash-in-advance financing costs. We show that, with Von Neumann-Morgenstern logarithmic utility functions, the price of AD securities, are inversely related to liquidity. The upshot of our argument is that agents’ expectations computedusing risk-neutral probabilities give more weight in the states with higher interest rates. This result cannot be found in a Lucas-type representative agent general equilibrium model where there is neither trade or money nor default. Hence, an upward yield curve can be supported in equilibrium, even though short-term interest rates are fairly stable. The risk-premium in the term structure is therefore a pure default risk premium.Keywords: cash-in-advance constraints; risk-neutral probabilities; state prices; term structure of interest ratesJEL Classification: E43; G12
Date: 2007-02
Downloads: (external link) http://fmg.lse.ac.uk/pdfs/dp583.pdf (application/pdf)
Financial Markets Group Working Papers are free to download for academics and students, and for our subscribers and sponsors. If you fall into one of these categories but have trouble downloading our papers, or if you do not fall into one of these categories but would like to pay for a copy, please contact us at fmg@lse.ac.uk