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Consistent with previous research, we fail to find a significant correlation between the abnormal returns of our sample firms with international activities and changes in the dollar. We investigate the possibility that this failure is due to mispricing. Lagged changes in the dollar are a significant variable in explaining current abnormal returns of our sample firms, suggesting that mispricing does occur. A simple trading strategy based upon these results generates significant abnormal returns. Corroborating evidence from returns around earnings announcements as well as errors in analysts' forecasts of earnings is also provided. [ABSTRACT FROM AUTHOR]

In this paper, we find significantly higher preholiday returns in futures contracts compared to nonholiday returns. The findings are consistent with the inventory adjustment hypothesis, since higher preholiday returns associated with lower trading volume are most pronounced for exchange-closed holidays. There is evidence of positive postholiday returns associated with higher trading volume for exchange-open holidays. This is consistent with positive holiday sentiments. The holiday effect is uniquely independent: The magnitude of excess holiday returns is the largest among all seasonal variations. [ABSTRACT FROM AUTHOR]

The underpricing of initial public offerings (IPOs) that has been widely documented appears to be a short-run phenomenon. Issuing firms during 1975-84 substantially underperformed a sample of matching firms from the closing price on the first day of public trading to their three-year anniversaries. There is substantial variation in the underperformance year-to-year and across industries, with companies that went public in high-volume years faring the worst. The patterns are consistent with an IPO market in which (1) investors are periodically overoptimistic about the earnings potential of young growth companies, and (2) firms take advantage of these "windows of opportunity." [ABSTRACT FROM AUTHOR]

Recent research shows that unsuccessful tender offers may affect target share returns for two years past the offer's announcement. This note examines target returns in the interim between the announcement and one year after the offer's withdrawal. Analyzing a recent sample of targets that did not get another bid in the year following a failed tender offer, this study reaches two conclusions. First, all of an offer's premium disappears by the time failure becomes public. Second, excess returns are zero in the post-failure year. An explanation that is based on the causes of the tender offer's failures is presented. [ABSTRACT FROM AUTHOR]

While it has been known for some time that, under uncertainty, the original version of the Fisher hypothesis is not precisely correct, empirical researchers have largely ignored this fact. Such an omission has possibly resulted in erroneous conclusions concerning other hypotheses; most notably the impact of prices on the real economy. This paper clarifies some of the previous interpretations of the existing empirical literature and provides a theoretical version of the relation between prices and interest rates. Empirical tests based on both the Livingston survey data and data from time-series forecasting models provide support for the Fisher effect and the hypothesis that only covariance risk is priced in the Treasury bill market. [ABSTRACT FROM AUTHOR]

This article discusses research that examined information on the anomalous behavior of the return distribution of stocks, which extends to the beta coefficient. The authors claim to have identified a temporary increase in the average beta of stocks on both the split-announcement date and the date the split becomes effective. In addition, they found a permanent increase in the beta following the ex-date. They note that these results are not consistent with received theory, which indicates that the split itself would have no effect on the risk of the stock.

This study shows that the competitive-equilibrium version of the APT may be extended to develop an exact model if idiosyncratic risks obey the Ross separating distribution. The results indicate that one only need add the market portfolio as an extra factor to the factor model in order to obtain an exact asset-pricing relation. Thus, this study presents an extension and integration of the CAPM and APT, The "empirical" APT is also generalized to allow for some factors to be omitted from the econometric model employed to test the theory. The developed model is extremely robust and may be reduced to the CAPM or expanded to approximate Ross's APT depending upon the number of omitted factors. Further, the importance of the market portfolio is shown to be a monotonic increasing function of the number of omitted factors. Finally, the study demonstrates that, in a finite economy, the pricing-error bound of the Ross APT in a correlated-residuals factor structure is an increasing function of the absolute value of market-residual beta, rather than the weight of the asset in the market portfolio as is the case of uncorrelated factor residuals. However, under the normality assumption, the pricing error becomes an extra component related to the market-portfolio factor, and the exact asset-pricing relation is once again obtained. [ABSTRACT FROM AUTHOR]

This paper re-examines the effects of nominal contracts on the relationship between unanticipated inflation and an individual stock's rate of return. This study differs in three main ways from previous research. First, announced inflation data are used to examine the effects of unanticipated inflation. Second, a different specification is used to obtain more efficient estimates. Third, additional nominal contracts are considered. The empirical results indicate that time-varying firm characteristics related to inflation predominately determine the effect of unanticipated inflation on a stock's rate of return. A firm's debt-equity ratio appears to be particularly important in determining the response. [ABSTRACT FROM AUTHOR]

The average returns on low-capitalization stocks are unusually high relative to those on large-capitalization stocks in early January, a phenomenon known as the turn-of-the-year effect. This paper finds that the ratio of stock purchases to sales by individual investors displays a seasonal pattern, with individuals having a below-normal buy/sell ratio in late December and an above-normal ratio in early January. Year-to-year variation in the early January buy/sell ratio explains forty-six percent of the year-to-year variation in the turn-of-the-year effect during 1971-1985. [ABSTRACT FROM AUTHOR]

Market liquidity is modeled as being determined by the demand and supply of immediacy. Exogenous liquidity events coupled with the risk of delayed trade create a demand for immediacy. Market makers supply immediacy by their continuous presence and willingness to bear risk during the time period between the arrival of final buyers and sellers. In the long run the number of market makers adjusts to equate the supply and demand for immediacy. This determines the equilibrium level of liquidity in the market. The lower is the autocorrelation in rates of return, the higher is the equilibrium level of liquidity. [ABSTRACT FROM AUTHOR]

This article presents the author's comments on a paper that examined expected returns on stocks. The author suggests that the paper did an excellent job evaluating variance-bound literature; however, he believes that the analysis conducted was partial and failed to highlight the conclusions reached by other prominent researchers on volatility. The author also is skeptical of the conclusion drawn in the paper that suggests turning to nonstandard models for expected returns to explain stock price volatility. The author notes that the field has come a long way in understanding the statistical traps involved with volatility and pushes for more research.

This is a summary and interpretation of some of the literature on stock price volatility that was stimulated by Leroy and Porter and Shiller. It appears that neither small-sample bias, rational bubbles nor some standard models for expected returns adequately explain stock price volatility. This suggests a role for some nonstandard models for expected returns. One possibility is a "fads" model in which noise trading by naive investors is important. At present, however, there is little direct evidence that such fads play a significant role in stock price determination. [ABSTRACT FROM AUTHOR]

The article presents a note on a simple criteria for optimal portfolio selection. This note explores the economic rationale underlying the portfolio formation process based on the single-index model. In doing so the authors seek to enhance the intuitive appeal of the simplified portfolio criteria developed in the previous studies to practitioners. The lack of an explicit role for the index in selecting securities for the optimal portfolio in the procedure is somewhat counter-intuitive since the index is the driving force underlying security returns and hence underlying the returns on the optimal portfolio.This relationship enables one to see intuitively that securities are accepted because of their ability to capture the driving force in the optimization of the risk-return tradeoff.

In an intertemporal economy where both risk (stock beta) and expected return are time varying, the authors derive a linear relation between the unconditional beta and the unconditional return under certain stationarity assumptions about the stochastic process of size-portfolio betas. The model suggests the use of long time periods to estimate the unconditional portfolio betas. The authors find that, after controlling for the betas thus estimated, a firm-size proxy, such as the logarithm of the firm size, does not have explanatory power for the averaged returns across the size-ranked portfolios. [ABSTRACT FROM AUTHOR]

This study investigates the seasonal pattern of aggregate insider trading to help distinguish between two competing explanations for the seasonal pattern of security returns. The first potential explanation examined is that the January effect arises from predictable changes in turn-of-the-year demand for securities. The second potential explanation examined is that the January effect represents compensation for the higher risk of trading against informed traders at the turn of the year. [ABSTRACT FROM AUTHOR]

In this paper, we extend earlier work on hedging models so that uncertainty about both deposit supply and loan demand is incorporated as well as random rates of return on loans and CD's. Our model suggests that the optimal forward position is the sum of three ratios that should be estimated simultaneously. Using bank-specific data, the optimal hedge ratios are estimated in both the pre-deregulation and deregulation subperiods. Our results show that previous studies of bank hedging with interest rate futures have greatly overstated (a) the volume of short futures positions that banks should take and (b) the degree of homogeneity of optimal hedge ratios across the banking system. Similarly, deregulation has not uniformly affected the interest rate risk borne by different institutions. [ABSTRACT FROM AUTHOR]

This paper develops a consumption-oriented model of asset prices in a multigood economy that is, in principle, testable even when aggregate consumption of goods and their market prices are only partially observable. Previous studies show that, when there are m consumption goods, equilibrium expected excess returns on securities are functions of their covariances with m + 1 variables-aggregate consumption expenditure and market prices of consumption goods. Without making any further assumptions, the present model shows that a similar equilibrium relationship can be expressed in terms of covariances of asset returns with the following m + 1 variables: market prices of k consumption goods and aggregate consumption of m + 1 - k goods. Because the author's result provides researchers with some flexibility in choosing the set of m + 1 variables that measure riskiness of securities, it should lead to more powerful tests of the model. [ABSTRACT FROM AUTHOR]

Closed-end funds' discounts contain information in the sense that they can be used to construct portfolios that earn returns exceeding those predicted by the two-factor capital asset pricing model. The precise nature of the information contained in a discount is not clear, however. This paper provides evidence that the information contained in a discount is an incomplete prediction of the fund's likelihood of being open-ended profitably. [ABSTRACT FROM AUTHOR]

This paper shows that the empirical tests of the Arbitrage Pricing Theory (APT) model are very sensitive to the anomalies observed in January in the stock returns data. There is a strong seasonal pattern in the estimates of the risk premia from the APT model. The most important implication of the findings in this paper is that the APT model can explain the risk-return relation mostly for January. Once the January returns are excluded from the data, there is no significant relation between the expected stock returns and the risk measures predicted by the APT model. [ABSTRACT FROM AUTHOR]

This article presents an examination of a mean-variance model of portfolio selection. The author notes that this model indicates that more of an asset is not necessarily a good thing, investors are typically only willing to take on a certain amount of risk even if the asset is performing well. The model that the author has presented indicates what this upper level of investment is and identifies the conditions that are most likely to facilitate this level of investing. The author discusses what the optimal portfolio looks like and examines how risk can influence the decisions an investor makes.

The bid-ask spread can be decomposed into two parts: one part due to asymmetric information and the other part due to other factors such as monopoly power. The part due to asymmetric information attenuates statistical biases in mean return, variance, and serial covariance. Thus, using spread data to adjust for biases in return moments requires knowing not only the spread but the composition of the spread. Furthermore, any spread-estimation procedure using transaction prices must estimate two spread components. On the other hand, the appropriateness of some previously suggested statistical corrections is independent of the spread composition. [ABSTRACT FROM AUTHOR]

The divesting of corporate assets has become quite popular. Previous studies of divestitures have found conflicting impacts upon shareholders' wealth of the buying firm. This study measures the impacts of product-line relatedness between the acquiring firm and the divested unit and financial weakness of the selling firm upon the abnormal returns to the acquiring firm. Although the study finds that the impact of financial strength of the seller is ambiguous, the purchase of related assets produces more wealth than does the purchase of unrelated divested units. Further, firms that purchase related divested units have larger proportions of insider ownership. [ABSTRACT FROM AUTHOR]

In models where both investors and securities are subject to differential taxation, there may be no set of prices that rule out infinite gains to trade, or "tax arbitrage." This paper characterizes the joint restrictions on financial-asset returns and investors' tax schedules that preclude tax arbitrage in the absence of short-sale constraints. The authors show that, if there exists any configuration of marginal tax rates on investors' tax schedules that rule out infinite gains to trade, then "no-tax-arbitrage" prices will exist. They also show that the existence of "no-tax-arbitrage" prices ensures the existence of equilibrium prices. [ABSTRACT FROM AUTHOR]

This paper discusses the pricing of assets in an intertemporal rational-expectations model when real production and inflation evolve according to first-order autocorrelated processes. The focus is on the structure of the various intertemporal discount rates (yields) exhibited by this economy. Yield curves are identified for consumption claims, indexed bonds, and nominally riskless bonds and can be extended to any claim that can be approximated by a (finite) linear combination of such securities. The model demonstrates that, if the average term structure for nominally riskless securities is upward sloping, then the yield curve for consumption (market) claims is downward sloping, suggesting that conventional methods for computing long-term discount rates err by not accounting for maturity factors. The paper also explores the relationship between the intertemporal equilibrium and its embedded single-period equilibria. The single-period risk measures in this economy are derived and shown to be (generally) functions of maturity. A model of nominal bond betas is constructed along these lines. It is shown that bond betas that are increasing functions of maturity do not necessarily imply an upward-sloping term structure. [ABSTRACT FROM AUTHOR]

The authors propose a likelihood-ratio test of the hypothesis that the minimum-variance frontier of a set of K assets coincides with the frontier of this set and another set of N assets. They study the relation between this hypothesis, exact arbitrage pricing, and mutual fund separation. The exact distribution of the test statistic is available. The authors test the hypothesis that the frontier spanned by three size-sorted stock portfolios is the same as the frontier spanned by thirty-three size-sorted stock portfolios. [ABSTRACT FROM AUTHOR]

This study explores the role of the method of payment in explaining common stock returns of bidding firms at the announcement of takeover bids. The results reveal significant differences in the abnormal returns between common stock exchanges and cash offers. The results are independent of the type of takeover bid, i.e., merger or tender offer, and of bid outcomes. These findings, supported by analysis of nonconvertible bonds, are attributed mainly to signalling effects and imply that the inconclusive evidence of earlier studies on takeovers may be due to their failure to control for the method of payment. [ABSTRACT FROM AUTHOR]

Duality theory is employed to provide necessary and sufficient conditions for portfolios on the minimum-variance frontier to have positive investment proportions in all assets. These conditions involve the feasibility of portfolios that have non-negative correlation with all assets and positive correlation with at least one. Using these results, several "qualitative" results concerning the signs of investment proportions in efficient portfolios are proved. It is argued that the conditions that ensure all-positive weights in efficient portfolios are intuitively compelling and are not unique to the CAPM. With large numbers of assets, however, the signs of weights in minimum-variance portfolios can be very sensitive to slight departures from these conditions due to, for example, sampling error. [ABSTRACT FROM AUTHOR]

This paper analyzes the major factors which determine the effects of taxation on the value of risky assets and on the cost of capital, and shows how the magnitudes and even the signs of these effects depend on the values assumed for a few key parameters in the model. Using plausible values for these parameters, it is shown that the results obtained are frequently counter-intuitive. [ABSTRACT FROM AUTHOR]

We develop an analytical model to address the question of optimal deposit insurance policy and to examine the impact of deregulation on depositors' welfare and the soundness of the insurance system. We find that the optimal level of regulation depends critically on the functional relationship between risk and return. We show that in general deregulation of bank activities and/or of deposit rate ceilings will involve tradeoff between depositors' welfare and the soundness of the insurance system. Our analysis also indicates that risk-sensitive premium and capital requirement schedules may not be efficient in managing the risk of banks. [ABSTRACT FROM AUTHOR]

This paper provides new tests of the arbitrage pricing theory (APT). Test results appear to be extremely sensitive to the number of securities used in the two stages of the tests of the APT model. New tests also indicate that unique risk is fully as important as common risk. While these tests have serious limitations, they are inconsistent with the APT. [ABSTRACT FROM AUTHOR]

The gain to stockholders from mergers is well documented. However, there is little evidence as to whether the source of the gain is due to synergy or management displacement. Merger is just one of an almost limitless variety of ways in which firms combine resources to accomplish some objective. A joint venture is another. In addition to being of interest as an independent phenomenon, because the original managements of the parent firms remain intact under a joint venture, investigation of wealth gains from joint ventures provides an opportunity to isolate the management displacement hypothesis from the synergy hypothesis as the source of gains in corporate combinations. Our results are 1) there are significant wealth gains from joint ventures, 2) the smaller partner earns a larger excess rate of return while the dollar gains are more equally divided, and 3) the gains, scaled by resources committed, yield “premiums” similar to those in mergers. We are inclined to interpret our results as supportive of the synergy hypothesis as the source of gain from corporate combinations. [ABSTRACT FROM AUTHOR]

This paper characterizes conditions under which asset returns and consumption are consistent with risk-averse preferences. It is shown that risk aversion is equivalent to "zero arbitrage" on a transformation of the payoff space. The implicit state prices which are dual to this no-arbitrage condition can be interpreted as prices of "pure consumption hedges." This zero-arbitrage restriction implies the usual restrictions associated with nonsatiation. The analysis holds in both complete and incomplete market settings. [ABSTRACT FROM AUTHOR]

In this paper we extend the multigood futures pricing model of Grauer and Litzenberger [9] to a dynamic discrete time setting. We then test the model using data on futures prices for corn, wheat, and soybeans. The parameter estimates we obtain are similar to those obtained by other researchers using stock return data. The model itself is rejected and we offer some suggestions as to which assumption may be violated. We also give an interpretation to the Hansen-Singleton nonlinear instrumental variables estimation technique used in our empirical work. [ABSTRACT FROM AUTHOR]

A nonparametric statistical procedure is employed to examine the returns to speculators in wheat, corn, and soybeans futures markets. We find that the theory of normal backwardation is supported. Moreover, the presence of the risk premiums to speculators tends to be more prominent in recent years than in earlier years. We also find that large wheat speculators as a whole possessed some superior forecasting ability. The evidence is inconsistent with the hypothesis that commodity futures prices are unbiased estimates of the corresponding future spot prices. [ABSTRACT FROM AUTHOR]

Sell-off activities arise when a firm sells part of its assets (e.g., a segment, a division, etc.) but continues to exist in essentially the same form. This study investigates the effect of voluntary sell-offs on stock returns. From a sample of over 1000 sell-off events (first public announcements), the evidence shows that both sellers and buyers earn significant positive excess returns from these transactions. The excess returns earned by buyers are smaller than those earned by sellers. There is also evidence that sell-off announcements are preceded by a period of significant negative returns for the sellers which suggests that the sellers, on average, performed poorly prior to their sell-off activities. [ABSTRACT FROM AUTHOR]

Empirical tests are reported for Ross' arbitrage pricing theory using monthly data for U.S. Treasury securities during the 1960-1979 period. We find that mean returns on bond portfolios are linearly related to at least two factor loadings. Multivariate test results, however, are not consistent with the APT. Our sample data in the U.S. Treasury securities market are also not consistent with either version of the CAPM. One-month-ahead forecasts of excess returns using factor-generating models are compared with corresponding naive predictions or predictions using the "market model" with various market portfolios. [ABSTRACT FROM AUTHOR]

This paper tests the Arbitrage Pricing Theory (APT) by estimating the factor loadings that are consistent between two industry groups of securities. One of the pitfalls in the study by Roll and Ross is that the factors estimated in one group may not be the same with the factors estimated in another group. This raises some concerns on the acceptability of their conclusions. For our study, we employ inter-battery factor analysis which enables us to estimate factor loadings by constraining the factors to be the same between two different groups. Our results show that there seem to be five or six inter-group common factors that generate daily returns for two industry groups of securities, and these inter-group common factors do not seem to depend on the size of groups. Also, based on our cross-sectional tests on the risk premia, we conclude that the APT should not be rejected. [ABSTRACT FROM AUTHOR]

This paper values options on assets whose returns, over a finite interval of time, are generated by a binomial process. It shows that a simple valuation relationship, between the option and the underlying stock, obtains if investors have preference functions that belong to a particular class, even if opportunities to hedge do not exist. One particular application of the theory is in the case where the stock price over a finite interval could increase by an amount, fall by the same amount, or stay at the same level. The results in this paper may be viewed as the foundation of the preference-based approaches to obtaining a risk neutral valuation relationship. [ABSTRACT FROM AUTHOR]

This paper presents the mean-Gini (MG) approach to analyze risky prospects and construct optimum portfolios. The proposed method has the simplicity of a mean-variance model and the main features of stochastic dominance efficiency. Since mean-Gini is consistent with investor behavior under uncertainty for a wide class of probability distributions, Gini's mean difference is shown to be more adequate than the variance for evaluating the variability of a prospect. The MG approach is then applied to capital markets and the security valuation theorem is derived as a general relationship between average return and risk. This is further extended to include a degree of risk aversion that can be estimated from capital market data. The analysis is concluded with the concentration ratio to allow for the classification of different securities with respect to their relative riskiness. [ABSTRACT FROM AUTHOR]

The primary purpose of this paper is the use of survey expectations data to study the empirical relationships between stock returns, inflation, and economic activity. In the course of this analysis and as a secondary purpose, the paper discusses general considerations involving the use of expectations proxies and makes recommendations for econometric techniques. The main empirical findings are: (1) Hypothesized relationships between expected economic activity and expected inflation do not in practice appear to be important in explaining the negative relationship between expected inflation and stock returns. (2) Nevertheless, the survey data do lend some support to the hypothesis of a quantity theory relationship between expected inflation and expected economic activity, holding constant monetary growth. (3) The cross-forecaster dispersion of economic activity forecasts, a proxy for real uncertainty, appears to be a significant determinant of stock returns. Inclusion of this variable eliminates the negative impact of expected inflation. [ABSTRACT FROM AUTHOR]

This study provides further evidence on the rates of return realized by the shareholders of multinational firms relative to those of purely domestic firms. The results indicate that the risk-adjusted returns realized by the shareholders are identical across the two groups except where the MNC operates in competitive foreign markets. In that case, MNC shareholders experience negative abnormal returns. The study also provides further evidence on the risk-reduction effect of international diversification. The results fail to support the hypothesis that the beta is a convex function of the degree of international involvement. Finally, the paper provides some preliminary evidence on the effect of corporate international diversification on shareholders' returns. It is found that abnormal returns rise by some 18 percent during the 14 months preceding the initial foreign diversification. [ABSTRACT FROM AUTHOR]

We examine abnormal stock returns surrounding contemporaneous earnings and dividend announcements in order to determine whether investors evaluate the two announcements in relation to each other, We find that there is a statistically significant interaction effect. The abnormal return corresponding to any earnings or dividend announcement depends upon the value of the other announcement. This evidence suggests the existence of a corroborative relationship between the two announcements. Investors give more credence to unanticipated dividend increases or decreases when earnings are also above or below expectations, and vice versa. [ABSTRACT FROM AUTHOR]

We examine the hypothesis originally advanced by Roll [12] that observed anomalies in excess returns can be explained by misspecification of the market model used to estimate systematic risk. We find substantial misspecifications in the model systematically related to size and period of listing of the securities in question. There is some evidence that these misspecifications are associated with systemic biases in measured betas used to construct excess returns. [ABSTRACT FROM AUTHOR]

While there has been an abundance of empirical research on the subject of mergers and acquisitions, little research exists on a closely related topic—voluntary corporate selloffs. This study examines the effect on shareholder wealth of the announcement by management of an investment decision to voluntarily sell part of its operations to another firm. Positive abnormal returns are found to occur on the announcement date. However, it is found that such selloffs generally occur after a period of abnormally negative returns, suggesting the announcement is preceded by the release of negative information about the firm. [ABSTRACT FROM AUTHOR]

This paper demonstrates that the Roll and Ross (RR) and other previously published tests of the APT are subject to several basic limitations. There is a general nonequivalence of factor analyzing small groups of securities and factor analyzing a group of securities sufficiently large for the APT model to hold. It is found that as one increases the number of securities, the number of "factors" determined increases. This increase in the number of "factors" with larger groups of securities cannot readily be explained by a distinction between "priced" and "nonpriced" risk factors as it is impermissible to carry out tests on whether a given "risk factor is priced" using factor analytic procedures. [ABSTRACT FROM AUTHOR]

This paper, utilizing dealer's "trading book" information, presents some empirical evidence supporting the validity of a dealer pricing model. It shows that much of the transaction prices variation may be explained by the specialist's optimal determination of his bid and ask quotes. Furthermore, it demonstrates that the dealer's bid-ask spread is an important explanatory variable in the observed transaction return. Finally, it indicates that the dealer's inventory level may affect his quotes and thus the transaction prices and order arrivals. The paper provides insights into the relationship between transaction prices and equilibrium prices, which will permit more extensive use of transaction data in empirical investigations. It also provides a better understanding of optimal dealer pricing strategies, suggesting that the proposed empirical model may be used to evaluate a dealer's trading performance. [ABSTRACT FROM AUTHOR]

Removing interest rate ceilings on bank deposits or reducing the tax rate applicable to the interest earned on such deposits are alternative means of increasing the after-tax return to depositors. These alternatives, however, have differing impacts on the structure of a competitive banking industry. This paper develops a model which focuses on a bank's choice between paying an explicit interest rate on its deposits and paying a return in the form of services. The model allows banks to differ in their production technologies and depositors in their marginal tax rates and preferences for services. The effects of tax rate changes and a ceiling on the explicit deposit interest rate are analyzed. [ABSTRACT FROM AUTHOR]

The article discusses accounting practices for flotation cost allowances. Flotation costs are incurred when a public utility sells new equity securities. There are two recognized approaches to accounting for flotation costs which have been advocated in regulatory hearings. The first consists of reimbursing the utility in each period for flotation costs actually incurred during that period. The second approach increases the allowed return on equity in all future periods to compensate the equity investor for the erosion of his initial equity contribution, due to flotation costs.

The impact of events on the time series properties of common stock returns has been the subject of numerous articles in the finance literature. Most studies have shown that capital markets are highly efficient in the sense that prices quickly adjust to publicly available information as investors act to receive a return commensurate with the level of perceived risk. This note examines the effect on the stock returns of public utility firms of the Three Mile Island (TMI) nuclear accident. In stock valuation models based on investor rationality, permanent price declines are brought about either by a decline in expected cash flows or by an increase in the rate used to discount future cash flows. Such a nuclear accident may directly affect investors' perceptions of both the expected cash flows of utilities and their risk. These future cash flows are affected because a nuclear accident may cause additional costs due to extended shutdowns or abandonment of nuclear plants, expenses of responding to a nuclear accident, and costs of purchasing replacement power. The response of utility returns to TMI is analyzed at three levels. First, the risk-adjusted returns for the utility experiencing the nuclear accident (General Public Utilities (GPU)) are measured over monthly time periods surrounding TMI. The same analysis is performed on an aggregate sample of electric utility firms to assess the direction and magnitude of TMI's impact on other firms in the industry. Lastly, the sample is divided into utilities with significant nuclear generating capacity at the time of TMI and utilities with no nuclear generating capacity, so that the differential impact of the nuclear accident on nuclear and non-nuclear public utilities may be assessed. Both a single and two index market model are used to estimate risk-adjusted returns. The latter index model includes an interest rate index as well as an equity market index. [ABSTRACT FROM AUTHOR]

The article discusses aspects of international portfolio choice. In international portfolio models nations are defined as zones of common purchasing power units or as subsets of investors who use the same price index in deflating their anticipated monetary returns. Nations may further be separated by sovereignty of taxes and border controls, which constrain private financial transactions between countries. Analysts say nations can be meaningfully distinguished by Purchasing Power Parity deviations. It is reasonable to surmise that investors residing in different countries have different yardsticks for measuring real returns and risks.