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21.
We provide a new test of the informational efficiency of trading in stock options in the context of stock split announcements. These announcements tend to be associated with positive abnormal returns. Our traditional event study results show abnormal returns that are significantly lower for optioned than non-optioned stocks, whether traded on the NYSE, Amex, or Nasdaq. After controlling for market returns, capitalization, book-to-market ratio, and trading volume, we find that the abnormal returns are significantly lower for NYSE/Amex optioned than non-optioned stocks. Although the results for Nasdaq stocks are not as clear, the overall effects tend to be lower after optioning. These findings are consistent with the hypothesis that the prices of optioned stocks embody more information, diminishing the impact of the stock split announcement. They provide new evidence of the beneficial effects of options on their underlying stocks. 相似文献
22.
Rajiv Sethi 《Games and Economic Behavior》1998,23(2):284-304
The replicator dynamics are generalized to allow for strategy-specific barriers to learning. The resulting dynamics satisfy neither payoff monotonicity nor payoff positivity, but do satisfy weak payoff positivity. It is shown that initial states from which trajectories converge to a rest point under the replicator dynamics may yield trajectories which approach a stable limit cycle under the generalized replicator dynamics. Furthermore, strategies which are strictly dominated by other pure strategies may survive indefinitely along such nonconvergent paths.Journal of Economic LiteratureClassification Numbers: C73. 相似文献
23.
Susana Yu Joel Rentzler Kishore Tandon 《Review of Quantitative Finance and Accounting》2010,34(1):1-21
This paper examines the uncertain information hypothesis on one major index and its corresponding exchange-traded fund: the
S&P 500 Index and SPDRs in the pre-SPDRs (01/63–12/93) and post-SPDRs (01/94–12/03) periods. Two strategies are used to measure
the economic significance of the uncertain information hypothesis. Overall, we present evidence confirming the uncertain information
hypothesis in the post-SPDRs period. However, we fail to convert the statistically significant gains observed into economic
gains under a conservative approach. In addition, the degree of difference in the volatilities of the 5-day post-event returns
(in both the S&P 500 and the SPDR) among the three subgroups diminishes in the post-SPDR period. Hence, we conclude that the
market is in fact short-term efficient in a more realistic setting. 相似文献
24.
This article investigates market reactions to major United States Department of Agriculture announcements during non-trading and trading hours in the soybean futures market using microstructure data. Following report release, volume increases and remains elevated for up to 15 to 20 minutes. The volume spikes for the non-trading releases relative to the trading releases, but are identical after the first reaction. Report releases during non-trading hours cause a large spike in volatility at the onset of trading which subsides quickly. In contrast, releases during trading hours result in a smaller volatility spike, which extends for 5–6 min at a higher magnitude. Adjusting volatility by normal trading volatility indicates that volatility in trading hour release is higher in both immediate response and persistence. Return correlations provide little evidence to support systematic under- or overreaction in prices regardless of when the report is released reflecting the efficiency of the market. 相似文献
25.
26.
Manish Agrawal Govind Hariharan H. R. Rao Rajiv Kishore 《Journal of Organizational Computing & Electronic Commerce》2013,23(3):169-199
This article analyzes competition among mediation service providers that match clients and vendors in a horizontally differentiated market. This is an issue that is important for decision support of mediators in determining pricing and service strategies. We present a simulation model to simultaneously represent search as well as the behaviors of clients, vendors, and multiple competing mediators. Among our findings: intermediaries find it optimal to offer registration fee incentives and derive revenues from transaction fees from successful matches; as switching costs increase, incumbent utilities increase and entrant utilities decrease; expertise, modeled as the ability of mediators to assess vendor attributes accurately, is a powerful competitive weapon for entrants to erode the incumbent intermediary's first mover advantage. On the other hand, client satisfaction is an instrument for an incumbent intermediary to deter entrance by competitors. 相似文献
27.
Rajiv Prabhakar 《公共资金与管理》2013,33(5):279-284
One way the previous UK government tried to tackle declining youth financial capability was through its Child Trust Fund (CTF) policy. However, there were allegations that it created pliant subjects for financial markets and that it was paving the way to phase out services previously provided by the state. This article defends financial capability as part of financial citizenship and suggests that the CTF was important for supporting financial citizenship. The CTF model is being discussed in other countries and the arguments in this article are of importance in those countries, as well as to the carers and educators of the five million CTF holders in the UK. 相似文献
28.
The impact of information technologies on manufacturing operations and performance is well established. However, scant research has been devoted to examining information technology (IT) investment among hospitals and how it influences patient care and financial performance. Using the lens of the Theory of Swift Even Flow (TSEF), we present an operations management-based perspective on the effect of IT in streamlining hospital operations. Specifically, we examined the role of IT on patient flow and its consequences for improved hospital efficiency and performance. 相似文献
29.
Kishore Gawande William Maloney Gabriel Montes-Rojas 《Journal of development economics》2009,90(2):267-275
There exist legal channels for informational lobbying of US policymakers by foreign principals. Foreign governments and private sector principals frequently and intensively use this institutional channel to lobby on trade and tourism issues. This paper empirically studies whether such lobbying effectively achieves its goal of trade promotion in the context of Caribbean tourism, and suggests the potential for using foreign lobbying as a vehicle for development. Panel data are used to explore and quantify the association between foreign lobbying by Caribbean principals and US tourist arrivals to Caribbean destinations. A variety of sensitivity analyses support the finding of a strong association. The policy implications are obvious and potentially important for developing countries. 相似文献
30.
Set within a franchising context that is an integral and significant component of the small business sector, this paper is the first attempt at modeling the sentiment of gratitude, a critical nascent relationship construct, as mediating the linkage between relational norms (as antecedents) and relationship quality constructs (as consequents). Data from a sample of 439 Australian franchisees are used to test the hypotheses. Relational norms were captured using the well‐accepted taxonomy of solidarity, flexibility, and mutuality, and relationship quality was conceptualized in terms of its constituent constructs of trust, commitment, and relationship satisfaction. Structural equation modeling was used to test the six hypothesized relationships. Results show that all six hypotheses are supported, that is, relational norms significantly and positively affect the emergence of gratitude, and in turn, gratitude significantly and positively influences the relationship quality constructs of trust, commitment, and relationship satisfaction. Managerial implications for the franchising industry in particular and small businesses in general are discussed. 相似文献