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作者:ZHOU, G
摘要:This paper presents an eigenvalue test of the efficiency of a portfolio when there is no riskless asset, complementing the test of Gibbons, Ross, and Shanken (1989). Besides optimal upper and lower bounds, an easily-implented numerical method is provided for computing the exact P-value. Our approach makes it possible to draw statistical inferences on the efficiency of a given portfolio both in the context of the zero-beta CAPM and with respect to other linear pricing models. As an application,...
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作者:BARRY, CB; MUSCARELLA, CJ; VETSUYPENS, MR
作者单位:Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park; Southern Methodist University
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作者:JORION, P; MISHKIN, F
作者单位:National Bureau of Economic Research
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作者:MADHAVAN, A; SMIDT, S
作者单位:Cornell University
摘要:This paper develops and tests a model of intraday security price movements which incorporates the effects of both trading volume and unanticipated information. We estimate our model using transaction data from a NYSE specialist and find strong evidence of information asymmetry, although the inventory effect appears weak. The parameter estimates are used to compute the costs of trading, and we find that implicit bid-ask spreads were significantly higher in October 1987 than in the rest of that ...
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作者:FRANKS, J; HARRIS, R; TITMAN, S
作者单位:University of Virginia; University of California System; University of California Los Angeles
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作者:MANKIW, NG; ZELDES, SP
作者单位:University of Pennsylvania
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作者:BERGMAN, YZ; CALLEN, JL
作者单位:Hebrew University of Jerusalem
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作者:GOLDENBERG, DH
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作者:JORDAN, BD; JORDAN, SD
摘要:This study uses Treasury bond triplets, which consist of three different Treasury issues with a common maturity date, to investigate the theoretical and empirical influence of tax strategies on Treasury prices. The tax-option effect, which arises from the right to optimally realize gains and losses for tax purposes, is found to induce convexity in the relation among triplet bond prices, but the effect is too small to create an arbitrage opportunity. A previous study [Litzenberger and Rolfo (19...
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作者:DEANGELO, H; DEANGELO, L
摘要:This paper studies managerial compensation, financial reporting, and dividend policies of the seven major domestic steel producers during requests for union concessions. Substantial layoffs, reported losses, and sacrifices by nonunion stakeholders buttressed managers' case for union concessions. From 1980 to 1988, sample firms reduced their work force by about 300,000 (almost two-thirds) and annual wage payments from $16.1 to $8.6 billion. Reported income is lower during union negotiations, co...