This paper presents a resolution of the paradox proposed by the example of an economy with complette markets and a multiplicityof martingale measures constructed by Artzner and Heath (1995). The resolution lies in noting that completeness is with respect to a topology on the space of cash flows...

There are two competing paradigms for modeling credit risk: the structural and reduced form models. This paper applies our knowledge of credit market equilibrium to this debate. We show that credit markets have asymmetric information in the borrowing and lending relationship which influence...

The purpose of this paper is to clarify the risks of leveraged ETFs. We do this by showing how to construct a k-times leveraged ETF as a dynamic portfolio in the ETF and a money market account. This construction characterizes the return distribution of the leveraged ETF over any investment...

This paper reviews the literature on credit risk models. Topics included are structural and reduced form models, incomplete information, credit derivatives, and default contagion. It is argued that reduced form models and not structural models are appropriate for the pricing and hedging of...

This paper reviews the term structure of interest rates literature relating to the arbitrage-free pricing and hedging of interest rate derivatives. Term structure theory is emphasized. Topics included are the HJM model, forward and futures contracts, the expectations hypothesis, and the pricing...

This paper discusses the two different contradicting philosophies for testing models in financial economics (asset pricing, corporate finance, and market-microstructure) using linear regression. We synthesize these two contradicting approaches, document the errors that may occur in the existing...

Unconventional monetary policy tools are based on the belief that there exists a zero-lower bound on interest rates. This paper argues, based on economic theory and the empirical evidence, that this belief is a myth and not a reality. It is shown that a negative default-free spot rate of...