Does servant leadership foster creativity and innovation? A multi-level mediation study of identification and prototypicality

The purpose of this multi-level study is to examine how servant leadership affects both employee creativity and team innovation. Drawing from social identity, in particular, relational identification theory, we found on the basis of a two-nation Asian sample of 154 teams that servant leadership promotes individual relational identification and collective prototypicality with the leader which, in turn, fosters employee creativity and team innovation. In addition, our study suggests that the mediated effect of leader identification is strongest when team climate for innovation is high.     

Electronic word-of-mouth (eWOM) generation in new media platforms: The role of regulatory focus and collective dissonance

In this research, we examine the role of two motivational forces associated with creation of electronic word-of-mouth (eWOM): regulatory focus and collective dissonance. Our studies show that generation of eWOM is enhanced by regulatory fit, while traditional WOM is dominated by the negativity effect. In study 1A, we show that prevention-focused consumers produce stronger intentions to post eWOM when they undergo a negative compared to a positive service experience. In study 1B, we find that promotion-focused consumers are more likely to post eWOM in reaction to a positive service experience when one's self-construal is independent. The final study shows that due to collective dissonance, consumers have greater intentions to create eWOM when their experiences are inconsistent with others' postings. We discuss the implications of these results for the development and management of eWOM communication in virtual communities.     

粮食中伏马毒素B1、B2的免疫亲和净化超高效液相色谱测定

建立了免疫亲和柱净化-超高效液相色谱法快速测定粮食中伏马毒素B1、B2的检测方法.样品经提取后,用免疫亲和柱净化、浓缩,Waters Acquity UPLC BEH C18(50 mm×2.1 mm,1.7 μm)色谱柱分离,以甲醇/磷酸二氢钠溶液(77/23,v/v)为流动相、流速为0.2 mL/min、进样量为1μL,用Acquity荧光检测器激发波长为310nm、发射波长为435 nm处进行检测,无需衍生,伏马毒素B1、B2的保留时间小于6.5 min,从样品前处理到分析整个过程小于45 min.根据3倍信噪比的峰响应值,确定伏马毒素B1、B2的检出限为0.05 ng,在0.25～10.0 ng范围内呈线性相关,相关系数R2值分别为0.9972和0.9999;FB1和FB2在粮食样品中加标回收率分别为70.0％～100.5％和74.8％～96.0％,精密度分别为2.2％～5.5％和4.3％～7.4％.本方法简便快速、灵敏度高、重现性好、溶剂用量少,适用于粮食中伏马毒素B1、B2的快速测定.     

A Comparison of Print Advertisements from the United States and France

Abstract

This study extends the research on cross-cultural advertising by comparing print advertisements from the United States and France in terms of emotional appeals, information content, and use of humor and sex. A content analysis of advertisements from two types of magazines from the United States and France revealed that French advertisements make greater use of emotional appeals, humor, and sex appeals. Advertisements from the United States were found to contain more information cues.     

The historical roots of India’s service-led development: A sectoral analysis of Anglo-Indian productivity differences, 1870-2000

India fell further behind the UK in terms of GDP per capita and overall labour productivity between the 1870s and the 1970s, but has been catching-up since. This paper offers a sectoral analysis of these trends. Comparative India/UK labour productivity in agriculture has declined continuously, and agriculture still accounts for around two-thirds of employment in India. Agriculture thus played a key role in India’s falling behind and has subsequently slowed down the process of catching up. Although there have been substantial fluctuations in comparative India/UK labour productivity in industry, this sector has exhibited no long run trend. The only sector to exhibit an upward trend in comparative India/UK labour productivity is services. India’s recent emergence as a dynamic service-led economy thus appears to have long historical roots. Although India has been characterised by relatively low levels of physical and human capital formation overall, its education provision has historically been unusually skewed towards secondary and tertiary levels. This has provided a limited supply of high productivity workers who have been employed predominantly in services.     

Investigating Customer Resistance to Change in Transaction Relationship with an Internet Vendor

Many academics and practitioners have reiterated the importance of online customer retention to ensure long‐term profitability. Consequently, a number of studies have identified various means of customer retention. These studies lay significant emphasis on creating customer loyalty. However, retaining customers, especially in the context of Internet shopping, is very difficult because of the low costs in comparison and switching. Most of the loyalty programs have also shown disappointing results. This study suggests that by tapping on an individual customer's inclination to resist changes in a transaction relationship, an Internet vendor can achieve customer retention. Using status quo bias theory, this study examines customer resistance to change (CRC) as a means of retaining customers in a transaction relationship with the Internet vendor. The empirical study of an Internet bookstore reveals that trust, relative attractiveness, and switching costs together influence CRC. The empirical results also show that CRC and switching costs have positive effects on willingness to pay more. Implications for theory and practice are discussed.     

Customer-Based Valuation

Customer lifetime value (CLV) has emerged as an important metric to manage and grow customers. Marketing scholars have written many books and articles on this topic. However, most of this research has focused on tactical marketing decisions. While this is important, it is not enough to gain attention of senior managers who are concerned about firm level metrics such as stock price. To have greater impact marketing needs to go beyond brand-level profits to show the impact of marketing actions on firm profitability. In this paper we focus on customer lifetime value and its link to firm value. We discuss research that provides customer-based valuation of firms and suggest directions for future research.     

Structural breaks and GARCH models of stock return volatility: The case of South Africa

This paper investigates the empirical relevance of structural breaks in forecasting stock return volatility using both in-sample and out-of-sample tests applied to daily returns of the Johannesburg Stock Exchange (JSE) All Share Index from 07/02/1995 to 08/25/2010. We find evidence of structural breaks in the unconditional variance of the stock returns series over the period, with high levels of persistence and variability in the parameter estimates of the GARCH(1,1) model across the sub-samples defined by the structural breaks. This indicates that structural breaks are empirically relevant to stock return volatility in South Africa. However, based on the out-of-sample forecasting exercise, we find that even though there structural breaks in the volatility, there are no statistical gains from using competing models that explicitly accounts for structural breaks, relative to a GARCH(1,1) model with expanding window. This could be because of the fact that the two identified structural breaks occurred in our out-of-sample, and recursive estimation of the GARCH(1,1) model is perhaps sufficient to account for the effect of the breaks on the parameter estimates. Finally, we highlight that, given the point of the breaks, perhaps what seems more important in South Africa, is accounting for leverage effects, especially in terms of long-horizon forecasting of stock return volatility.     

Is Marriage Poisonous? Are Relationships Taxing? An Analysis of the Male Marital Wage Differential in Denmark

Differences in the pattern of marriage, cohabitation, childbirth, and intrahousehold specialization between the United States and Denmark, as well as a rich, register-based panel sample of about 35,000 young Danish men, are exploited to shed light on the nature of the male marital wage differential. The results indicate that failing to control for cohabitation can seriously bias estimates of the marital wage differential, that marriage is a more selective state than cohabitation, and that specialization may explain some of the marital wage differential in the United States but not in Denmark. In Denmark, by contrast, there is evidence that fatherhood has a significant impact on earnings.