We test for reliable evidence of the day-of-the-week effect on both the mean and volatility for the S&P/TSX Canadian return index. Unlike previous studies, we permit several specifications for the error distribution — GARCH normal, Student's t, generalized error distribution, and double exponential distribution. Unlike other studies, we find that the day-of-the-week effect in both mean and conditional volatility is sensitive to the particular specification of the underlying distributions. We also find that using a regression analysis assuming a Student's t distribution is a better way to investigate this effect. Our evidence demonstrates the apparent fragility of previous empirical studies on calendar anomalies. Thus, our results serve as a warning that with financial data, the error distributional assumptions are critical to correctly identifying empirical regularities in the data. 相似文献
We propose a group decision making model based on conflicting bifuzzy sets (CBFS) where evaluation are bi-valued in accordance to the subjective assessment obtained from the experts for the positive and negative views. This paper discusses the weighting methods for particular attribute and subattribute with emphasis given to the unification of subjective and objective weights. The integration of CBFS in the model is naturally done by extending the fuzzy evaluation in parallel with the intuitionistic fuzzy. We introduce a new technique to compute the similarity measure, being the degree of agreement between the experts. We end up the paper by demonstrating the applicability of the proposed model to the empirical case of flood control project, one of the project selection problems. 相似文献
We argue that partnerships are the optimal governance structure for professional service firms (PSFs) based on our analysis of their need for collegial controls, the use of tacit knowledge, and an investigation of agency costs. However, these factors and the resulting choice of partnership as a governance structure constrain the ability of PSFs to successfully pursue growth strategies. In addition, their growth potential is further circumscribed by diversification limitations, as well as reputational and resource constraints. 相似文献
This paper uses industrial level data from 21 developing and emerging economies over the period of 1995–2013, to analyze the impact of globalization, in particular, trade orientation of industries onto female employment share. The fractional probit estimation reveals that taking cumulative measures of export and import share often camouflages the impact of trade on female employment. The disintegration of export and import share according to their trading partners reveals that exports and imports from the developed world alone contribute to higher female employment. Moreover, it is the low-tech exports to developed countries and high-tech imports from developed countries which results in an increase in female employment. These findings call for the strengthening of trade ties with the developed world, especially when it comes to promoting low-tech exports and high-tech imports. Our results also reveal that the trading links with the developed world can further enhance female employment if developing country possesses a greater pool of educated female labor force. 相似文献
There is controversy about the effects of loyalty programs in the customer relationship management literature. Although some managers and researchers believe that customer loyalty created through loyalty programs leads to higher firm profits, others have found evidence that loyalty programs do not have a positive effect on firm's profits. In this article, we present our findings regarding the effect of reward cards and affinity cards on customer profitability in the context of credit card industry. We find surprising evidence that customers who own either a reward card or an affinity card generate significantly less profit than those customers who do not have these cards. Equally puzzling is the fact that these customers also have lower average lifetime with the firm. This leads us to a puzzle as to why these practices are widely prevalent in the industry. We find that loyalty cards provide value to the issuers in terms of risk management. They serve as a mechanism to reduce the risk associated with more profitable customers by attracting less risky customers. Thus, through loyalty cards the financial institution is able to balance out the total risk of the portfolio of customers by acquiring customers, who although less profitable, are less risky. 相似文献
In order to provide an appropriate context for the current state of the heritage product in tourism industry, semiotic knowledge become an important role to know deeply the identity, philosophy, and also the meaning of behind the actual product. Scott (2000) stresses the requirement of aesthetic and semiotic content in a creative product, instead of creativity. But, how many of retailers and salespersons in heritage product believe the semiotic as knowledge to present the product and opportunities in their selling? According to Kotler (2000) a good personal selling will provide a detailed explanation or demonstration of the product. The message can be varied by the salesperson to fit the motivations and interests or each prospective customer. So, the purpose of this paper is to closely examine the level of awareness among retailers and salesperson toward the important of semiotic knowledge as part of strategic persuasion in a selling process. This survey study will develop a sample among retailers and salesperson in Kuala Terengganu as a respondent who give the feedback to fulfill the research questions. 相似文献
Social media offers a platform for diffused stakeholders to interact with firms—alternatively praising, questioning, and chastising businesses for their CSR performance and seeking to engage in two-way dialogue. In 2014, 163,402 public messages were sent to Fortune 200 firms’ CSR-focused Twitter accounts, each of which was either shared, replied to, “liked,” or ignored by the targeted firm. This paper examines firm reactions to these messages, building a model of firm response to stakeholders that combines the notions of CSR communication and stakeholder salience. Our findings show that firm response to a stakeholder on social media is positively and most significantly associated with what we refer to as the stakeholder’s connective power but negatively associated with the firm’s own connective power. To a lesser extent, firm response is positively associated with the stakeholder’s normative power but negatively associated with the firm’s own normative power. Firm response is also shown to be positively associated with stakeholder urgency in terms of both the originality of a stakeholder message and the expression of positive sentiment.
This article estimates and evaluates different measures of core inflation for India by employing statistical and econometric approaches. We estimate Wholesale Price Index (WPI) ex-food, WPI ex-food and energy, 20% asymmetric trimmed mean, 63rd percentile and Structural Vector Autoregression (SVAR) measures of core inflation. The trimmed mean, 63rd percentile and SVAR measures are unbiased, less volatile and highly correlated to headline inflation. The predictive accuracy of the different core inflation measures used in this article is assessed. The overall result suggests that a 20% asymmetric trimmed mean and SVAR measures of core inflation can be useful for the policy purposes. 相似文献
This paper analyzes the role of foreign direct investment (FDI) on wages, using Turkish firm-level data from 2003 to 2010, a period which coincides with significant FDI inflows both in manufacturing and service sector firms in the region. We explore the possibility of increased foreign presence translating into shifts in either labor demand or supply curves thereby resulting in changing the total wage bill or wage per worker in the host country. To empirically test this relationship we employ a dynamic specification of the wage equation. After addressing endogeneity concerns, the results reveal that foreign presence measured in terms of intra- and inter-sectoral linkages is related to higher wage bills in the host economy, hence strengthening the argument for attracting greater foreign investment to enhance labor welfare. 相似文献