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911.
Soonhong Min Ph.D. Stephen K. Kim Ph.D. Haozhe Chen Ph.D. 《Journal of Business Logistics》2008,29(1):283-304
Competition involves not firm against firm but rather supply chain against supply chain, but few studies explain theoretically the subsistence of a supply chain as a social entity or the operating mechanisms through which firms socialize to obtain better business performance. On the bases of social identity theory and social capital theory, the authors suggest that the salience of supply chain identity accumulates social capital in a supply chain, which then facilitates supply chain management and improves business performance. 相似文献
912.
Joseph K. W. Fung 《期货市场杂志》2007,27(6):555-574
This study examines the information conveyed by options and examines their implied volatility at the time of the 1997 Hong Kong stock market crash. The author determines the efficiency of implied volatility as a predictor of future volatility by comparing it to other leading indicator candidates. These include volume and open interest of index options and futures, as well as the arbitrage basis of index futures. Using monthly, nonoverlapping data, the study reveals that implied volatility is superior to those variables in forecasting future realized volatility. The study also demonstrates that a simple signal extraction model could have produced useful warning signals prior to periods of extreme volatility. These results indicate that the options market is highly efficient informationally. © 2007 Wiley Periodicals, Inc. Jrl Fut Mark 27:555–574, 2007 相似文献
913.
914.
P. K. Thornton 《Journal of Agricultural Economics》1989,40(2):198-208
A beef simulation model was used to examine a range of production possibilities for increasing the output of extensive ranching systems in the tropical savannas of eastern Colombia through the use of sown grass-legume pastures of higher inherent digestibility than that of the native species. Generalised stochastic dominance was used to compare some promising alternatives with the unimproved savanna-based production system and with each other. As the planning horizon of the decision maker was reduced, so variability, measured as the coefficient of variation of output, increased significantly. The impact of risk on the long-term acceptability of a complete investment was limited. 相似文献
915.
The continuing and deepening economic reforms in China have brought many changes both socially and economically to the society. The primary function of auditing in China has begun to shift away from the traditional tax compliance assessment towards the credibility lending to financial statements. The economic reforms and the development of the Accounting Standards for Business Enterprises have necessitated the parallel development of auditing standards in China. While some significant differences exist, the new Chinese auditing standards are, in a number of important aspects, similar to the professional standards promulgated by the International Federation of Accountants. The development of a comprehensive body of standards, auditor independence, the role of certain auditing techniques, and certified public accountant (CPA) population are the major areas that China needs to improve. Opening up the Chinese accounting industry will trigger significant advances in the implementation of Chinese standards and the development of the Chinese accounting profession. 相似文献
916.
917.
Christos Pantzalis Jung Chul Park Ninon K. Sutton 《The Journal of Financial Research》2008,31(2):167-191
In examining takeovers of foreign targets by U.S. firms, we investigate the effect of the target country's legal environment on acquiring firm value. Our results indicate that acquirers of target firms located in civil law countries experience significant positive abnormal returns, especially when the acquirer possesses a high level of intangibles. Furthermore, we find that acquirers with high levels of intangibles are more likely to acquire target firms in civil law countries. These findings suggest that the transfer of intangibles overseas provides relatively larger efficiency benefits for multinational corporations in cases where the alternative, contracting in external markets, is more difficult. 相似文献
918.
This paper is the result of survey investigation the attitudes of Western Canadian farmers toward two biotechonological products, ENFIX-L and PB-50. Farmers were asked to rate both the importance and the performance of 21 attributes of the products. Soil depletion was found to be an important concern to many farmers. personal and environmental risks were less of a concern. Overall, it was found that the non-biotech-nological aspects of a product would prevail in purchasing decisions. 相似文献
919.
920.
Portfolio selection subject to experts' judgments 总被引:1,自引:0,他引:1
Since Markowitz [Markowitz, H. M. (1952). Portfolio selection. The Journal of Finance, 7, 77-91.], mean-variance theory has assumed that risky-asset returns to be random variables. The theory deals with this uncertainty by further assuming that investors hold homogeneous beliefs regarding the probability distribution governing return uncertainty. While the theory deals with return uncertainty, it fails to address measurement imprecision. In his original work, Markowitz recognized the need to combine randomness with heterogeneous expert judgment resulting in such imprecision. The main objective contributions of the paper are (i) to explore the implications of fuzzy return indeterminacy on mean-variance optimal portfolio choice, (ii) to use bid-ask spread as a proxy measure of the indeterminacy or “fuzzy” nature of random returns, and (iii) to introduce a brief, self-contained glimpse of empirical representations to practitioners unfamiliar with the fuzzy modeling field. Exposition, such as this one, is expected to open new collaborations between other branches of fuzzy mathematics and asset-pricing theories. 相似文献