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Journal Article
Anomalies in option pricing: the Black-Scholes model revisited
In 1973, Myron Scholes and the late Fischer Black published their seminal paper on option pricing. The Black-Scholes model revolutionized financial economics in several ways: It contributed to our understanding of a wide range of contracts with option-like features, and it allowed us to revise our understanding of traditional financial instruments. This article addresses the question of how well the Black-Scholes model of option pricing works. The goal is to acquaint a general audience with the key characteristics of a model that is still widely used, and to indicate the opportunities for ...
Journal Article
Stocks, bonds, options, futures, and portfolio insurance: a rose by any other name
Trading volume and open interest in options and futures contracts on stock indices, equities, and interest rate instruments traded on world exchanges have experienced remarkable growth. However, this growth has been accompanied by controversy about the proper role of financial derivatives and the potential for abuse. Prominent attention has been given to losses by major corporations, broker-related short-term mutual funds, and municipal agencies.> The public debate about "derivatives" has promoted the impression that the heart of the problem has been a proliferation of brand new ways of ...
Journal Article
The municipal bond market, part II: problems and policies
Why does Congress allow municipal interest payments to be exempted from federal income taxes in the face of a very large chronic deficit in the federal budget, even though no constitutional provision requires that this tax policy continue? The rhetoric of tax exemption is philosophical, appealing to notions of appropriate intergovernmental relations and, in particular, to the doctrine of reciprocal immunity: no level of government should use its taxing authority to impose harm on another level. ; But the true force behind tax exemption is that it provides states and local governments with a ...
Working Paper
Tax-exempt bonds really do subsidize municipal capital!
The traditional view of municipal finance holds that the federal tax-exemption of interest payments by state and local (municipal) governments provides a capital cost subsidy to municipal investment equal to the difference between interest rates on taxable and tax-exempt bonds. Recently, a new view has emerged which argues that tax-exemption plays a minor role, if any, in shaping municipal investment decisions. According to this new view, communities will use tax finance at the margin except in the unusual case where only debt finance is used. Thus, tax-exemption is an intramarginal (lump ...
Journal Article
Financial planning engines: motoring toward a better future
Journal Article
The municipal bond market, Part I: politics, taxes, and yields
This article assesses recent changes in the structure of the municipal bond market. It reviews the tax legislation, judicial interpretations, and other factors that affect the yield on municipal bonds. These factors are then employed in a statistical analysis of the determinants of municipal bond yields. ; The results of the analysis show that the ratio of yield to maturity on municipal bonds to yields on U.S. Treasury bonds (the interest rate ratio) has varied greatly in the past two decades and is greater for longer maturities. They also show that debate during 1986 about tax reform ...
Discussion Paper
Pension accounting and corporate earnings: the world according to GAAP
This study?s underlying premise is that current pension plan accounting has two important negative effects. First, it distorts the measurement of earnings and net worth in the short run, as well as the pattern of earnings over future periods. Second, this distortion can send incorrect signals to investors about a firm?s health, resulting in the mispricing of a firm?s outstanding debt and equity instruments. The author demonstrates how these distortions are introduced, examines the magnitude of the distortions, and discusses proposals for reform.
Journal Article
Margin lending and stock market volatility
Margin loans have long been associated in the popular mind with instability in security markets, and the potential for margin lending to exacerbate the amplitude of cycles in stock prices has received considerable attention in the years since the Crash of 1929. Despite the many empirical studies of the association between margin loans or margin requirements and the volatility of stock returns, there has been no definitive answer, and the consensus among financial economists is that margin lending plays little, if any, role in shaping the probability distribution of returns on common stocks. ...
Journal Article
Rules of the game: book review
In Trading & Exchanges: Market Microstructure for Practitioners, SEC Chief Economist Larry Harris has written a must-read for anyone interested in the good, the bad, and the ugly of securities trading.
Working Paper
Weekends can be rough: revisiting the weekend effect in stock prices
The performance of stock prices during breaks in trading has received considerable attention in recent years. While some studies focus on performance surrounding periods of unscheduled trading breaks (trading halts in individual stocks, circuit breakers for exchanges), other studies look at performance around periods of scheduled trading breaks (holidays, weekends). This paper fits into the second group. We revisit the "weekend effect" in common stock returns. Our focus is on two characteristics of differential returns over intraweek trading days and over weekends: the mean return, or ...