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Author:Bogusz, Theodore 

Working Paper
Bubbles and Leverage: A Simple and Unified Approach
In this paper, we lay out a simple framework that captures much of what the theoretical literature has to say about the role of credit in systemically important asset booms and busts. In addition, we suggest ways in which to incorporate physical investment in the bubble asset as well as monetary policy.
AUTHORS: Bogusz, Theodore
DATE: 2013-11-13

Working Paper
Interest Rates or Haircuts? Prices Versus Quantities in the Market for Collateralized Risky Loans
Markets for risky loans clear on two dimensions - an interest rate (or equivalently a spread above the riskless rate) and a specification of the amount of collateral per dollar of lending. The latter is summarized by the margin or "haircut" associated with the loan. Some key models of endogenous collateral constraints imply that the primary equilibrating force will be in the form of haircuts rather than movements in interest rate spreads. Indeed, an important benchmark model, derived in a two-state world, implies that haircuts will adjust to render all lending riskless, and that a loss of risk capital on the part of borrowers has profound effects on asset prices. Quantitative analysis of a model of collateral equilibrium with a continuum of states turns these results on their heads. The bulk of the response to lenders' perception of increased default risk is in the form of higher default premia. Further, with high initial leverage, reductions in risk capital decrease equilibrium margins almost proportionately, while asset prices barely move. To the extent that one believes that it is a stylized fact that haircuts move more than spreads - as seen, for example, in bilateral repo data from 2007-2008 - this reversal is disturbing.
AUTHORS: Easton, Matthew; Bogusz, Theodore; Barsky, Robert
DATE: 2016-11-29

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