Pricing Options On Risky Assets In A Stochastic Interest Rate Economy1

This paper studies contingent claim valuation of risky assets in a stochastic interest rate economy. the model employed generalizes the approach utilized by Heath, Jarrow, and Morton (1992) by imbedding their stochastic interest rate economy into one containing an arbitrary number of additional risky assets. We derive closed form formulae for certain types of European options in this context, notably call and put options on risky assets, forward contracts, and futures contracts. We also value American contingent claims whose payoffs are permitted to be general functions of both the term structure and asset prices generalizing Bensoussan (1984) and Karatzas (1988) in this regard. Here, we provide an example where an American call's value is well defined, yet there does not exist an optimal trading strategy which attains this value. Furthermore, this example is not pathological as it is a generalization of Roll's (1977) formula for a call option on a stock that pays discrete dividends.     

Production and the Real Rate of Interest: A Sample Path Equilibrium

This paper examines a multiperiod production economy where investors do not observe the realizations of productivity factors or security expected returns. Unlike previous work, which expresses the equilibrium conditions as functions of unobservable (to both real-world investors and empiricists) moments of the distributions of returns, we express the equilibrium real rate as a function of the observable sample paths of realizations of returns. We provide a framework for empirically testing this and other asset pricing models without outside-the-model econometric assumptions needed for producing the unobservable moments of returns. We construct versions of the restrictions for any time interval between observations.     

On the determination of real interest rates in Europe

In this paper a loanable funds model is estimated over the period 1959–1990 for the determination of after-tax expected real interest rates using aggregated data for four European countries under the assumption that high capital mobility in Europe implies a common capital market. It is concluded that real interest rates in the European Community were mainly driven by movements in temporary income, expected inflation, lagged investment, money growth, and the oil price. Moreover, our aggregate, model appears to be reasonably stable. Finally, individual country rates are shown to depend on the European rate as well as some country-specific variables, suggesting a limited degree of isolation from international financial markets for the countries concerned.At the time of writing the author was still affiliated with the Department of Economics at the University of Groningen. Hence, any views expressed here are those of the author and do not necessarily represent those of De Nederlandsche Bank. This paper benefitted very much from stimulating comments made by Willem Buiter, Kanhaya Gupta, Jakob de Haan, Flip de Kam, Kees Koedijk, and an anonymous referee. The author would like to thank Jan-Egbert Sturm for technical assistence. Of course, the usual disclaimer applies.     

Accounting-Based Valuation with Changing Interest Rates

This paper generalizes Ohlsons [Contemporary Accounting Research Vol. 11 No. 2. 661–687 (1995)] equity valuation framework to allow for stochastic interest rates. Much of this analysis initially deals with the specialized setting in which earnings suffice for cum-dividend value. In such a case, the beginning-of-period (lagged) rate determines the capitalization factor, not the current rate. The underlying earnings dynamic modifies the traditional random walk model via an additional term, namely current earnings multiplied by the percentage change in interest rates. The general model retains these basic aspects of the earnings-sufficiency setting. Empirical implications bear on the returns-to-earnings regression: The earnings-response coefficient decreases as the beginning-of-period rate increases.JEL Classification: M41, G12     

Banking market conditions and deposit interest rates

This paper shows that the impact of market structure on bank deposit interest rates is complex. Both market size structure and multimarket bank presence have independent effects on rates. There is evidence that mid-size banks were more aggressive competitors than other banks, but that the effect of market structure on deposit rates has evolved over time, with mega-banks recently becoming more aggressive competitors. This may be related to the growth of mega-banks in many markets. These findings have implications for existing theories of deposit pricing and, by extension, antitrust policy in banking.     

A model of discontinuous interest rate behavior,yield curves,and volatility

This paper develops an equilibrium model in which interest rates follow a discontinuous (generalized) gamma process. The gamma process has finite variation, takes an infinite number of “small” jumps in every interval, and includes the Wiener process as a limiting case. The gamma interest rate model produces yield curves that closely resemble those of diffusion models. But in contrast to diffusion models, the curvature of the yield curve does not directly depend on the true volatility of the interest rate process, but instead depends on a different risk-neutral volatility. The gamma model appears to fit the distribution of interest rates changes and the jump characteristics of interest rate paths. Empirical tests reject a diffusion model of interest rates in favor of the more general gamma model because daily interest rate innovations are highly leptokurtic. The author appreciates comments from George Constantinides, Jon Ingersoll, Herbert Johnson, Ray Rishel, and an anonymous referee, computational assistance from Kerry Back and Saikat Nandi, and support from Atlantic Asset Management. Any errors are the responsibility of the author.     

Determinants of the variability in corporate effective tax rates and tax reform: Evidence from Australia

This study examines the determinants of the variability in corporate effective tax rates in Australia spanning the Ralph Review of Business Taxation reform. Our results indicate that corporate effective tax rates are associated with several major firm-specific characteristics, including firm size, capital structure (leverage) and asset mix (capital intensity, inventory intensity and R&D intensity). While the Ralph Review tax reform had a significant impact on many of these associations, corporate effective tax rates continue to be associated with firm size, capital structure and asset mix after the tax reform.     

交易所国债回购利率期限结构研究

本文对上海证券交易所国债回购利率的利率期限结构进行了研究。与以往研究结果不同，本文使用GMM方法克服了国内学者在预期理论实证研究中的估计偏误。本文发现，在假定期限溢价为常数时不支持预期理论，但把时变的期限溢价引入检验模型中时、实证结果支持了预期理论。但期限溢价及即期利率价差仅能部分解释未来短期利率的变动，预测效果较差，还需要对流动性、投资者的风险偏好等可能的影响因素作进一步分析，以期提高对市场利率变化的预测精度。     

我国金融监管联席会议制度研究

金融业的发展趋势对我国现行的分业监管体制提出新的要求,各监管机构有必要在分工的基础上建立一种合作协调机制。金融监管联席会议的制度化运作在很大程度上能够满足这种需求。现行金融监管联席会议制度存在着不足,需要进一步完善才能更好地发挥作用。