Analysis of the impact of agricultural R&D investment on food security

This article investigates how agricultural R&D investment affects the food self-sufficiency ratio (SSR). Several studies have argued a causal relationship between agricultural R&D investment and food security. However, most of these studies are based on conceptual logic and few studies have conducted an empirical analysis. This study verifies whether agricultural R&D investment affects the food SSR as a representative indicator of food security. A total of 822 data sets of 41 countries have been used in the analysis in this study and include developed and developing country data over the period 1981–2009. Food self-efficiency is used as a dependent variable, and agricultural R&D investment and other variables are used as explanatory variables. The estimation results show that, first, the cereal SSR and income are in an inverted U-shaped relationship. Second, increases in land productivity increase the cereal SSR and, lastly, the cereal SSR ratio and agricultural R&D investment are in a U-shaped relationship.     

Shifting Demand: Online Music Piracy,Physical Music Sales,and Digital Music Sales

Traditionally, music has been sold to consumers by recording several individual songs/tracks in physical media such as CDs and cassettes. Sales of such physical music have been declining for the past several years. Many academic studies have attributed the decline of physical music sales to online music piracy, yet some other studies have not found evidence to support a negative relationship between online music piracy and physical music sales. Interestingly and importantly, we have observed that while many of the studies that found the negative relationship between online music piracy and physical music sales used data before 2003, other studies that do not find similar results have used post-2003 data. In fact, there was a significant structural change in the music market in 2003. Legal (iTunes-like) online channels for digital music that allow consumers to buy individual tracks became available during that year. This article complements the existing literature by analyzing the impact of online music piracy and physical music sales in the presence of iTunes-like legal channels for digital music using bivariate Granger testing. Our results show that the availability of legal channels for digital music has weakened the negative effect of online music piracy on physical music sales. Moreover, in the presence of legal channels for music distribution, digital music, not online music piracy, substitutes for physical music.     

Antecedents of Belief in Global Citizenship: A Two-Country Empirical Investigation

ABSTRACT

This research contributes to the existing literature by investigating the antecedents of belief in global citizenship. Previous literature in global brand management has provided strong evidence of the importance of perceived quality and social prestige of global brands in influencing consumers’ evaluations of global brands. Accordingly, the authors’ model focuses on the perceived quality and social prestige of global brands as antecedents of consumers’ belief in global citizenship. In addition, they examine the direct and indirect effects of consumer ethnocentricity and cultural openness on consumers’ belief in global citizenship. They empirically examine this framework within a rich cross-cultural context using samples from the United States and India (developed and developing countries). The proposed model suggests that perceived quality and social prestige of global brands are mediators of the relationship between ethnocentricity and cultural openness and consumers’ belief in global citizenship. They followed Gerbing and Anderson's two-step approach to develop a measurement model with an acceptable fit to the data and then conducted a structural model to test the hypothesized relationships. The authors conducted χ² difference tests to examine the structure of their hypothesized relationships across the United States and India. The results support partial mediation for perceived quality and social prestige of global brands on the relationship between ethnocentricity and cultural openness and consumers’ belief in global citizenship. Furthermore, they demonstrate some interesting differences in the relationships in the model across the two samples.     

How do supply chain management and information systems practices influence operational performance? Evidence from emerging country SMEs

This study first provides a comparative analysis of the impact of supply chain management (SCM) and information systems (IS) practices on operational performance (OPER) of small- and medium-sized enterprises (SMEs) operating in two neighbouring emerging country markets of Turkey and Bulgaria. Then, we investigate moderating effects of both SCM–IS-linked enablers and inhibitors on the links between SCM and IS practices and OPER of SMEs. To this end, we first empirically identify the underlying dimensions of SCM and IS practices, and SCM–IS-related enabling and inhibiting factors. Second, a series of regression analyses are undertaken to estimate the impact of the study's constructs on OPER of SMEs. The results are discussed comparatively within the contexts of both Turkish and Bulgarian SMEs and beyond. The study makes a significant contribution to the extant literature through obtaining and analysing cross-national survey data of SCM and IS practices in emerging country markets.     

The impact of the employee-organization relationship on temporary employees' performance and attitude: testing a Singaporean sample

Following the framework proposed by Tsui et al . (1997), this research paper examines the impact of the employee-organization relationship on temporary employees' job performance, turnover intention, overall job satisfaction, affective commitment, perception of fairness and perception of work options. Data were collected from 191 temporary employees from seven employment agencies in Singapore. Analyses conducted revealed that employee responses do vary under the four types of relationship (quasi-spot contract, under-investment, mutual investment and over-investment). In general, both mutual investment and over-investment relationships were associated with higher levels of performance and more favourable attitudes than either the under-investment or quasi-spot contract. Specifically, temporary employees under the mutual investment and over-investment relationships have better job performance, a higher level of affective commitment to the agency, improved overall job satisfaction, higher perception of fairness, higher perception of work options and lower turnover intentions. Furthermore, these finding were obtained even after controlling for the effects of company tenure and job level on employee performance and attitudes. The results highlight the importance of employee-organization relationships in eliciting the desired temporary employee outcomes. Practical implications were drawn for human resource practitioners and employment agencies on how best to manage temporary employees. Some limitations and suggestions for future research were discussed.     

Jack of fewer trades: Evolution of specialization in research

It is widely maintained that scientists have become increasingly specialized with a narrow range of expertise ever since the era of “Renaissance men.” However, evidence on scientists' specialization is rather anecdotal. We provide large-scale evidence to address whether younger generations of inventors have indeed become more specialized, using a unique panel data set of Korean inventors. We also investigate how the degree of specialization evolves over an inventor's research career and how far an inventor switches his or her field of expertise in the technology space over a career.     

The impact of cumulative pressure on accounting students’ propensity to commit plagiarism: an experimental approach

Adopting aspects of Jones, T.M., 1991, Academy of Management Review 16 , 366–395 issue‐contingent model of ethical decision‐making to guide our choice of variables, we investigate perceptions of factors that affect student plagiarism. In an experimental setting, time pressure and assessment weighting are manipulated between‐subjects, whilst the severity of plagiarism is examined within‐subjects. Our findings confirm that time pressure and assessment weighting are positively related to perceptions of the likelihood of plagiarism and that plagiarism is perceived as more likely for less severe acts. Further, the likelihood of plagiarism increases as the cumulative pressure of both time deadline and assessment weighting increases.     

Household Demand, Network Externality Effects and Intertemporal Price Discrimination

This paper examines the optimality of intertemporal price discrimination when network externality effects are present in the consumption of a durable good. We conduct our study in two settings. In a model with two household types, utilities are dependent on the cumulative proportion of households that have purchased the durable good. Next, in a model with a continuum of household types, we extend the analysis to the case where households consume both a durable good and a stream of non-durable goods. We show that in both settings, the presence of network externalities facilitates a sales strategy with intertemporal price discrimination.