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141.
ROBERT ALBON 《The Economic record》1988,64(2):102-112
Australian telecommunications pricing has developed in an environment which is uncompetitive, subject to pressures to cross-subsidize and insufficiently cognizant of relevant costs and demands. STD and local call charges are too high and access charges too low. Compared with a structure which charged marginal usage costs and retrieved costs of subscribers' loops and overheads through access charges, the pricing structure has an estimated efficiency cost of about $240 m in 1985–86. 相似文献
142.
Several observed features of takeover contests appear to be inconsistent with value-maximizing behavior on the part of the agents involved. For instance, managers occasionally resist takeover bids, presumably in order to facilitate competition among bidders. However, counterbids do not always materialize, suggesting that management resistance was not in the best interests of the firm's shareholders. On the other hand, a successful takeover is sometimes accompanied by a decrease in the value of the acquirer's shares. In addition, valuable combinations are occasionally not consummated. We present a simple illustration of sequential takeover bidding in which all managers act in the best interests of their respective shareholders. Within the context of this model, we provide an explanation of the type of behavior described above. 相似文献
143.
ROBERT JARROW 《The Journal of Finance》1986,41(4):915-921
This paper joins together two fields of research in financial economics. The first field studies stochastic dominance, while the second field studies arbitrage pricing. The two fields are linked together through the derivation and the proof of a characterization theorem. The characterization theorem gives necessary and sufficient conditions for the existence of arbitrage opportunities in terms of the existence of two assets, one of which first order stochastically dominates the other and the price of a particular contingent claim. Examples are provided to demonstrate the theorem's content. 相似文献
144.
J. BRADFORD DE LONG ANDREI SHLEIFER LAWRENCE H. SUMMERS ROBERT J. WALDMANN 《The Journal of Finance》1989,44(3):681-696
Recent empirical research has identified a significant amount of volatility in stock prices that cannot easily be explained by changes in fundamentals; one interpretation is that asset prices respond not only to news but also to irrational “noise trading.” We assess the welfare effects and incidence of such noice trading using an overlapping-generations model that gives investors short horizons. We find that the additional risk generated by noise trading can reduce the capital stock and consumption of the economy, and we show that part of that cost may be borne by rational investors. We conclude that the welfare costs of noise trading may be large if the magnitude of noise in aggregate stock prices is as large as suggested by some of the recent empirical litrature on the excess volatility of the market. 相似文献
145.
146.
147.
ROBERT F. WHITELAW 《The Journal of Finance》1994,49(2):515-541
This article investigates empirically the comovements of the conditional mean and volatility of stock returns. It extends the results in the literature by demonstrating the role of the commercial paper—Treasury yield spread in predicting time variation in volatility. The conditional mean and volatility exhibit an asymmetric relation, which contrasts with the contemporaneous relation that has been tested previously. The volatility leads the expected return, and this time series relation is documented using offset correlations, short-horizon contemporaneous correlations, and a vector autoregression. These results bring into question the value of modeling expected returns as a constant function of conditional volatility. 相似文献
148.
This paper investigates whether the voluntary decomposition of consolidated earnings disclosures into industry segments has information content in the sense that such disclosures better enable investors to predict earnings. The broad rationale underlying the experimental design is that if segment disclosure does enable investors to better predict earnings then residual abnormal returns (after controlling for unexpected earnings) surrounding the earnings announcements of firms providing segment disclosures should on average be significantly lower than a matched' group of firms that do not provide this type of disclosure. Using a short event window design, our results support this view. 相似文献
149.
ROBERT A. CONNOLLY Z. NURAY GÜNER KENNETH N. HIGHTOWER 《Journal of Money, Credit and Banking》2007,39(2-3):689-702
Unlike equity returns, many fixed-income return measures appear to display long memory. We show that the extent of long memory differs strongly for gross and excess holding period returns on U.S. Treasury securities. Granger and others have argued that long memory may only reflect infrequent structural breaks. We explore the impact of structural instability on tests for long memory and find only weak indications that it lies behind the long memory in our return series. The evidence of long memory remains strong for yield and term premia series even after accounting for a series of potential underlying structural changes. 相似文献
150.
This study provides fresh evidence on the responsiveness of private consumption and, by implication, saving to government deficits. It focuses on consumption and saving from 1981 to 1989, a period during which the personal saving rate was characterized as surprisingly unresponsive to high federal budget deficits. The authors attempt to determine whether this experience is consistent with previous behavior. They also test whether this experience refutes the Ricardian Equivalence Proposition (REP), under which consumers incorporate the government's intertemporal budget constraint into their own.
The analysis involves estimating two consumer expenditure functions based on two measures of current income capable not only of explaining expenditure behavior during the postwar period but also of successfully forecasting out of sample into the 1981–1989 period. Only one model is consistent with the REP, but neither model indicates that high government deficits caused the drop in the national saving rate experienced during the 1980s. Both models predict similar short-run responses to shifts in the government deficit. The responses depend crucially on the mix of tax and expenditure changes used to achieve the deficit shift. Both consumption and saving are more responsive to changes in government expenditures on goods and services than they are to changes in taxes. 相似文献
The analysis involves estimating two consumer expenditure functions based on two measures of current income capable not only of explaining expenditure behavior during the postwar period but also of successfully forecasting out of sample into the 1981–1989 period. Only one model is consistent with the REP, but neither model indicates that high government deficits caused the drop in the national saving rate experienced during the 1980s. Both models predict similar short-run responses to shifts in the government deficit. The responses depend crucially on the mix of tax and expenditure changes used to achieve the deficit shift. Both consumption and saving are more responsive to changes in government expenditures on goods and services than they are to changes in taxes. 相似文献