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91.
In this article we investigate the relation between insider trading regulations and the bid–ask spread. We decompose the spread into its components before and after the enactment of strict new insider trading rules in New Zealand. We find that the enactment led to a significant decrease in the information asymmetry component of the spread, which is observed mainly in illiquid and high prechange information asymmetry companies. These findings are robust to model specification. In addition, we find a decrease in the contribution of information asymmetry to price volatility. 相似文献
92.
We tell of the evolving meaning of the term coordination as used by economists. The paper is based on systematic electronic searches (on “coord,” etc.) of major works and leading journals. The term coordination first emerged in professional economics around 1880, to describe the directed productive concatenation of factors or activities within a firm. Also, transportation economists used the term to describe the concatenation of routes and trips of a transportation system. These usages represent what we term concatenate coordination. The next major development came in the 1930s from several LSE economists (Hayek, Plant, Hutt, and Coase), who extended that concept beyond the eye of any actual coordinator. That is, they wrote of the concatenate coordination of a system of polycentric or spontaneous activities. These various applications of concatenate coordination prevailed until the next major development, namely, Thomas Schelling and game models. Here coordination referred to a mutual meshing of actions. Game theorists developed crisp ideas of coordination games (like “battle of the sexes”), coordination equilibria, convention, and path dependence. This “coordination” was not a refashioning, but rather a distinct concept, one we distinguish as mutual coordination. As game models became more familiar to economists, it was mutual coordination that economists increasingly had in mind when they spoke of “coordination.” Economists switched, so to speak, to a new semantic equilibrium. Now, mutual coordination overshadows the older notion of concatenate coordination. The two senses of coordination are conceptually distinct and correspond neatly to the two dictionary definitions of the verb to coordinate. Both are crucial to economics. We suggest that distinguishing between the two senses can help to clarify “coordination” talk. Also, compared to talk of “efficiency” and “optimality,” concatenate coordination allows for a richer, more humanistic, and more openly aesthetic discussion of social affairs. The narrative is backed up by Excel worksheets that report on systematic content searches of the writings of economics using the worldwide web and, using JSTOR, of Quarterly Journal of Economics, Economic Journal, Journal of Political Economy, American Economic Review, and Economica. 相似文献
93.
Aaron J. Shenhar 《R&D Management》2004,34(5):569-578
Strategic Project Leadership ® (SPL) is a new approach to project management that is focusing projects on creating competitive advantage and winning in the marketplace. This approach is particularly relevant to strategic projects that are initiated to create the company's future, including almost all R&D projects. In the traditional approach, project managers and teams were typically focused on getting the job done, and meeting time and budget goals. SPL , provides a modern view. It suggests that projects are initiated for business reasons, and that just 'getting the job done' is not enough. This paper presents a mindset, a framework, and a practical, step-by-step approach on how to connect project management to business results and how to turn projects into powerful competitive weapons. The paper is based on extensive case research, of which we present six cases – three successes and three disappointments – to demonstrate the value of the SPL approach to project management.1 相似文献
94.
In Markov-switching regression models, we use Kullback–Leibler (KL) divergence between the true and candidate models to select the number of states and variables simultaneously. Specifically, we derive a new information criterion, Markov switching criterion (MSC), which is an estimate of KL divergence. MSC imposes an appropriate penalty to mitigate the over-retention of states in the Markov chain, and it performs well in Monte Carlo studies with single and multiple states, small and large samples, and low and high noise. We illustrate the usefulness of MSC via applications to the U.S. business cycle and to media advertising. 相似文献
95.
96.
Destination attractiveness is an important stream of literature. Australia has been recognized as one of the world’s most attractive destinations. This study looked into international students’ perceptions of Australia as an attractive international tourism destination as well as their travel intention. A sample of 252 Chinese and Indian international students participated in the study. Students’ perceived destination attractiveness and how it influenced their travel intention, pleasure of travel and place attachment were investigated. The study also looked into perception differences between Chinese and Indian students using t-test and hierarchical regressions. 相似文献
97.
East Asia is currently the biggest market for luxury and prestige brands from the West. This article examines the cultural factors that lie behind this phenomenon and, based on distinctions between Southeast Asian and Western cultures, explores how the practice of luxury consumption differs in these cultures. As part of this examination, self-concept theory is reviewed and integrated in a cross-cultural consumption model. Conceptual linkages between existing theories of materialism and conspicuous consumption are noted. © 1998 John Wiley & Sons, Inc. 相似文献
98.
99.
Impacts of Policy Reforms on the Supply of Mexican Labor to U.S. Farms: New Evidence from Mexico 总被引:2,自引:0,他引:2
Stephen R. Boucher Aaron Smith J. Edward Taylor Antonio Yúnez-Naude 《Review of Agricultural Economics》2007,29(1):4-16
The availability of immigrant farm-workers from Mexico is a critical factor affecting the U.S. fresh fruit and vegetable sector. This paper uses retrospective panel data from rural Mexico to examine the impact of the North American Free Trade Agreement and the Immigration Reform and Control Act on the supply of migrant labor to the United States. We find that, in contrast to expectations, both policies were associated with an increase in migration to U.S. farm jobs from rural Mexico. 相似文献
100.