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作者：Hargis, K
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作者：Koski, JL; Pontiff, J
作者单位：University of Washington; University of Washington Seattle
摘要：We investigate investment managers' use of derivatives by comparing return distributions for equity mutual funds that use and do not use derivatives. In contrast to public perception, derivative users have risk exposure and return performance that are similar to nonusers. We also analyze changes in fund risk in response to prior fund performance. Changes in risk are substantially less severe for funds using derivatives, consistent with the explanation that managers use derivatives to reduce th...
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作者：Aggarwal, RK; Samwick, AA
作者单位：Dartmouth College; Dartmouth College; National Bureau of Economic Research
摘要：We examine compensation contracts for managers in imperfectly competitive product markets. We show that strategic interactions among firms can explain the lack of relative performance-based incentives in which compensation decreases with rival firm performance. The need to soften product market competition generates an optimal compensation contract that places a positive weight on both own and rival performance. Firms in more competitive industries place greater weight on rival firm performanc...
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作者：Kandel, E; Marx, LM
作者单位：Hebrew University of Jerusalem; University of Rochester
摘要：We present a model of Nasdaq that includes the two ways in which marketmakers compete for order flow: quotes and direct payments. Brokers in our model can execute small trades through a computerized system, preferencing arrangements with marketmakers, or vertical integration into market making. The comparative statics in our model differ from those of the traditional model of dealer markets, which does not capture important institutional features of Nasdaq. We also show that the empirical evid...
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作者：Kavajecz, KA
作者单位：University of Pennsylvania
摘要：By partitioning quoted depth into the specialist's contribution and the limit order book's contribution, the paper investigates whether specialists manage quoted depth to reduce adverse selection risk. The results show that both specialists and limit order traders reduce depth around information events, thereby reducing their exposure to adverse selection costs. Moreover, specialists' quotes may reflect only the limit order book on the side (or sides) of the market where they believe there is ...
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作者：Harford, J
作者单位：University of Oregon
摘要：Cash-rich firms are more likely than other firms to attempt acquisitions. Stock return evidence shows that acquisitions by cash-rich firms are value decreasing. Cash-rich bidders destroy seven cents in value for every excess dollar of cash reserves held. Cash-rich firms are more likely to make diversifying acquisitions and their targets are less likely to attract other bidders. Consistent with the stock return evidence, mergers in which the bidder is cash-rich are followed by abnormal declines...
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作者：Graham, JR
作者单位：Duke University
摘要：A model is developed which implies that if an analyst has high reputation or low ability, or if there is strong public information that is inconsistent with the analyst's private information, she is likely to herd. Herding is also common when informative private signals are positively correlated across analysts. The model is tested using data from analysts who publish investment newsletters. Consistent with the model's implications, the empirical results indicate that a newsletter analyst is l...
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作者：Lyon, JD; Barber, BM; Tsai, CL
作者单位：University of California System; University of California Davis
摘要：We analyze tests for long-run abnormal returns and document that two approaches yield well-specified test statistics in random samples. The first uses a traditional event study framework and buy-and-hold abnormal returns calculated using carefully constructed reference portfolios. Inference is based on either a skewness-adjusted t-statistic or the empirically generated distribution of long-run abnormal returns. The second approach is based on calculation of mean monthly abnormal returns using ...
