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Armand Sassen 《De Economist》1873,22(1):269-285
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Corporate governance guidelines are a mechanism that a firm can enact which should reduce agency costs and better align the
interests of boards and the suppliers of capital. This study examines stock price reactions primarily attributable to institutional
investors occurring when corporations announce the enactment of corporate governance guidelines. A final sample of 77 firms
was derived from the first announcement of corporate governance guidelines exclusive to the SEC-EDGAR database. The results
indicate that good governance does matter. Firms that announced the enactment of corporate governance guidelines experienced
increased stock prices following the announcements. There was an immediate (days 1–4) reaction for firms that provided all
or part of the guidelines’ substance; a delayed (days 8–10) reaction occurred for those firms that only referenced the guidelines’
enactment. Additionally, firms with either a potentially greater following or that had a previous history of acrimonious relations
with stakeholders were rewarded by the announcement of the enactment of guidelines. 相似文献
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This study examines seaonality in three industry specific stock market indices; the Standard and Poor's (S&P) 20 Transportation, the S&P 40 Utilities, and the S&P 40 Financial. The results support the existence of a weekend effect in the transportation index. There is no evidence of a weekend effect in the utilities and financial indices. Both the transportation and financial indices exhibit the January effect. The utilities index, however, shows no evidence of a January effect. The finding of a weekend and a January effect at the industry level is significant because select mutual funds enhance the ability of investors to capitalize on such anomalies. 相似文献
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A heuristic rule for routing customers to parallel servers 总被引:1,自引:0,他引:1
A practically important problem is the assignment of stochastically arriving service requests to one of several parallel service groups so as to minimize the long-run average sojourn time per service request. An exact solution of this multi-dimensional optimization problem is computationally infeasible. A simple heuristic solution method yielding a good suboptimal rule will be given for the case of server groups with different and generally distributed service times. This solution method is based on a decomposition approach and first principles from Markov decision theory. The main idea of the heuristic method is to apply one step of policy improvement to the best Bernoulli-splitting rule. 相似文献
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It is ironic that at a moment in history when the business school seems to be enjoying unparalleled success, the role of the business school is being increasingly questioned by some of its leading professors. We examine the debate about the business school and its evolution. While sympathetic to the criticisms levied against the business school we nevertheless suggest a positive future if the business school can build upon its potentially unique position as knowledge space. 相似文献