The first part of this paper presents a general approach to valuing a financial institution's contracts when there is credit risk. The approach uses contingent claims pricing theory and is particularly appropriate for an off-balance sheet contract, such as a swap, that can have either a positive or a negative value to the counterparty. The second part of the paper extends the analysis by considering the problem, faced by bank supervisory authorities, of determining capital requirements for off-balance sheet contracts.

In this paper, we examine the behavior of the bid-ask spreads of initial public offerings of common stocks (IPOs) in the over-the-counter market. We find that, in the initial aftermarket, the quoted percentage bid-ask spreads for IPOs are, on average, about threefourths as large as those for seasoned stocks. A cross-sectional and time-series simultaneous equations analysis indicates that significant differences in the IPO and seasoned spreads persist for eight weeks in the aftermarket. Further, we find that the lower IPO spreads stem from their differential elasticities with respect to the determinants of bid-ask spreads and volume as well as from significant differences in the levels of these determinants.

This paper investigates the international transmission mechanism of stock market movements by estimating a nine-market vector autoregression (VAR) system. Using simulated responses of the estimated VAR system, we (i) locate all the main channels of interactions among national stock markets, and (ii) trace out the dynamic responses of one market to innovations in another. Generally speaking, a substantial amount of multi-lateral interaction is detected among national stock markets. Innovations in the U.S. are rapidly transmitted to other markets in a clearly recognizable fashion, whereas no single foreign market can significantly explain the U.S. market movements. Also, the dynamic response pattern is found to be generally consistent with the notion of informationally efficient international stock markets.

This paper attempts to characterize liquidity-driven noise in the CRSP Government Bond price data set by comparing these price records to the independently collected Shearson Lehman Brothers (SLB) Bond Data Base. We argue that discrepancies between the data sets are due largely to liquidity-driven price errors, and we show that they are systematically related to certain bond characteristics. On the other hand, these discrepancies are small in magnitude and are approximately mean zero. We examine data filters based on observable bond characteristics and show that these filters can reduce the noise in price records while preserving their mean zero nature. The effects of these errors on performance evaluation are investigated by comparing results using filtered and unfiltered data.

A majority of corporate zero-coupon bonds includes a call provision, giving the firm the right to call the bond at par value. In this paper, we investigate whether or not it is optimal for the firm to call such a bond for refunding purposes, taking into consideration the effect of corporate taxes. We find that it is not optimal to refund the bond as long as the corporate tax rate is less than 50 percent. We find that a significantly higher proportion of callable zero-coupon bonds, compared to noncallables, has restrictive financing covenants, suggesting that the call feature is included to provide flexibility at a low cost for future recapitalizations as the firm's investment opportunities change.

Critics claim that theories of secured debt fail to explain the widespread use of collateral because they incorrectly predict when a loan will be secured. This paper provides the first rigorous statistical test of the transaction cost models of secured debt. Data from two samples of over 1,000 small business loans generally support the common set of predictions of these theories. The incidence of secured debt is positively related to probability of default, loan size, loan maturity, and marketability of assets. Changes in the legal and economic environment also alter firms' decisions regarding the pledging of collateral.

This paper provides further empirical evidence on the relation between entrepreneurial ownership retention and the initial value of unseasoned common shares. A Canadian data set is employed to estimate the various empirical specifications used in previous studies and to examine additional variables suggested by recent developments in the theoretical literature. The estimation is carried out using a more general procedure to correct for heteroskedasticity. In contrast to previous findings, the entrepreneurial ownership retention signal does not possess statistical significance in any of the models examined.

This paper explores the determinants of monitoring activity provided by security analysts. Jensen and Meckling have argued that analysts play the role of monitors of managerial performance as a means of reducing agency costs of debt and equity. The other major role analysts play is that of making security markets more informationally efficient. The empirical results reported in this paper support the role of analyst monitoring as an efficient device for controlling agency-related costs of debt and equity and as a response to the information demands of investors.

This paper examines the seasonal behavior of proportional dealer spreads for OTC NASDAQ common stocks. Results indicate there is seasonality in dealer spreads. Spreads tend to be larger in the second half of the calendar year, peaking in December. At the turn-ofthe-year, spreads tend to peak in mid- to late December and then recede during January. The last trading day in December produces the largest daily decline in spreads during the turn-of-the-year period.

Errors in recorded security prices are a source of misspecification in the market model. If recorded price errors are sufficiently nonrandom, they result in biased returns and in biased and inconsistent estimates of market model regression coefficients. This paper argues that tax-induced flow-supply pressures cause end-of-the-year recorded price errors to be nonrandom enough to create the appearance of anomalous turn-of-the-year stock return behavior. Empirical tests of returns and market model regression coefficients during the turn-of-the-year period cannot reject this errors-in-variables explanation of the turn-ofthe-year effect.

Two alternate hypotheses, the stable Paretian and mixture of normals, have been proposed to explain the observed thick-tailed distributions of futures price movements. The two hypotheses are tested by applying the stability-under-addition test of stable distribution parameters to twenty lengthy time series of changes in daily closing futures prices. Tests are conducted on both the original data series and randomized data. The results offer support for the mixture of normals hypothesis.

A piecewise linear weighting function for Black-Scholes implied volatilities is used in conjunction with the Black-Scholes call pricing model to approximate stochastic volatility European call prices. A sensitivity analysis is conducted to compare simulated stochastic volatility call prices to the Black-Scholes prices calculated with the weighted implied volatilities. The analysis indicates that a simple model can provide close approximations to the simulated prices with far less computational effort.

This paper examines how the progressive personal tax rate affects the equilibrium asset pricing model. In a continuous-time framework with progressive taxation, it can be shown that the expected excess rate of return on a risky asset is an increasing function of (i) the covariance of asset return with aggregate consumption rate changes, and (ii) the covariance of asset return with the aggregation of individual wealth change, weighted by the investor's tax scheme progressivity index. The capital asset pricing model derived in the absence of tax is shown to understate the expected excess rate of return and to have a misspecification error under the progressive tax scheme. Furthermore, the expected excess rate of return can be decomposed as the consumption risk premium and tax premium. The tax premium depends on the tax structure prevailing in the economy.

This paper points out errors in the stable variate generator used by Frankfurter and Lamoureux (1987) in a recent simulation study. The study was aimed at determining whether or not the assumption of the distributional form of stock returns is important in the construction of optimal portfolios.

An analysis of the dual problem described by Ronn (1987) reveals that it provides a powerful and easily interpretable test for the hypothesis of a single class of marginal investors, including models of equilibrium based on a “representative tax bracket.” When Ronn's empirical tests are interpreted via the dual, they lend additional support to his conclusions in providing a strong rejection of the representative tax bracket hypothesis. A valid dual LP used to test the hypothesis can be obtained with fewer assumptions than Ronn's primal; in addition, a minor error in Ronn's presentation of the dual is corrected.

We are grateful to Don Panton (1989) for pointing out a problem with the IMSL version 9 of the pseudo-random number simulator, GGSTA, written by Chambers, Mallows, and Stuck (1976), which we used in (1987).

As Panton (1989) points out, the correction:

(a) may or may not materially affect the simulation per se, and/or

(b) may or may not materially affect our inferences (drawn from the simulation methodology).