Stochastic comparisons of multivariate reversed frailty model

Multivariate frailty approaches are most commonly used to define distributions of random vectors, which represent lifetimes of individuals or components and stochastically compare them in terms of various multivariate orders. In this paper, we study a multivariate shared reversed frailty model and a general multivariate reversed frailty mixture model, and derive sufficient conditions for some of the stochastic orderings to hold among the random vectors. We also consider a particular case of a general multivariate mixture model in which the baseline distribution function is represented in terms of a copula and study stochastic comparisons (stochastic and lower orthant order) among the two random vectors.     

The growing popularity of spiritual brands: What drives purchase intent?

In this study, we investigate the reason for the growing popularity of FMCG (Fast Moving Consumer Goods) household products branded, promoted and sold in India by local spiritual leaders. We find that religiosity and normative community pressure are important purchase drivers for such products. Surprisingly, pragmatism in the presence of normative pressure also contributes to demand. We argue that self-identity theory provides a contextualized explanation in association with social identity theory to explain the influence of normative pressure on increased demand. The results of the study suggest that integrating social and self-identity theories provides a fuller insight into consumer behaviour in a complex social context.     

Research output and economic growth in G7 countries: new evidence from asymmetric panel causality testing

Recent studies have shown increasing interest on the relationship between research output and economic growth. The study of such a relationship is not only of theoretical interest, but it can also influence specific policies to improve the quality, and probably the quantity of research output. This article has studied this relationship in G7 countries using the asymmetric panel causality test of Hatemi-J (2011). Our results show that only the UK shows a causal relationship from the output of research to real GDP. However, when the signs of variations are taken into account, there is an asymmetric causality running from negative research output shocks to negative real GDP shocks.     

Consumers’ Behavioral Intentions Toward Self-Service Technology in the Emerging Markets

ABSTRACT

Self-service technologies (SSTs) allow customers to offer their own service encounters via the interaction of electronic service interfaces or machines rather than by interacting with a firm's service personnel. This lack of personal interaction generates doubts and queries in the minds of the people, especially those unaware or less aware of these technology-based services. Such a situation is quite prevalent in the developing nations (like India), where still a large number of people are apprehensive about using the latest technologies. In this regard, the present study aims to develop an integrated model designed to predict and explain the various factors that influence customers’ behavioral intentions to use or not to use one particular SST (i.e., ATM services). The study finds that bank customers are less innovative and less optimistic to try out new technologies. Usefulness of the technology helps in developing positive attitude toward the technology, which in turn affects customers' intentions to use that technology.     

The Impact of Enterprise Size on Employment Tribunal Incidence and Outcomes: Evidence from Britain

Employment Tribunals are the formal means of adjudicating disputes over individual employment rights in the UK. This article hypothesizes that, because small firms favour informality over formality, they are more likely (i) to experience employee claims than large firms; (ii) to be subject to different types of claims; (iii) to settle prior to reaching a formal Tribunal; and (iv) to lose at a Tribunal. Data from the 2003 Survey of Employment Tribunal Applications are used to examine these hypotheses. They are generally supported, although in relation to the third there was no size effect. Furthermore, our results show that firms that have procedures and follow them are more likely to win than those firms that do not have any procedures. Recognizing the benefits of informality, while also ensuring that small firms follow proper standards of procedural fairness, is a policy dilemma that has yet to be resolved.     

Benefits of diversifying investments into emerging markets with time-varying correlations: An Australian perspective

Australian investors can reduce their overall portfolio risk by diversifying into equities from other markets. Emerging markets have attracted significant interest because of their low correlations with Australian equity market returns; however, a number of studies have indicated that correlations between equity returns are increasing over time, so using unconditional estimates of correlations in a portfolio optimization model can result in the selection of a portfolio that may not be optimal.We use an Asymmetric Dynamic Conditional Correlation GARCH model to estimate time-varying correlations and include these correlation estimates in the portfolio optimization model. The assets used for portfolio construction comprise seven emerging market indices that are available to foreign investors. This study finds that, despite increasing correlations, there are still potential benefits for Australian investors who diversify into international emerging markets.     

How e-WOM recommendations influence product consideration and quality of choice: A motivation to process information perspective

A laboratory experiment examines the effects of electronic word-of-mouth (e-WOM) on consumer consideration and choice of an experience product. Specifically, we manipulated the number of consumer recommendations and the optimality of the recommended product in a realistic online shopping environment. The results indicate that e-WOM is likely to result in more time considering the recommended product. For consumers more motivated to process information, e-WOM recommendations lead to more time spent on the choice task overall. Further, consumers with less motivation to process information make suboptimal decisions based on e-WOM recommendations. Consumers with a high motivation to process information are willing to accept recommendations and switch from declared attribute preferences, but choose only optimal products.     

Value‐driven Internet shopping: The mental accounting theory perspective

When faced with competition and the ease with which customers can compare prices across sellers, Internet vendors often lower prices in a bid to increase sales. However, recent research reports that even price‐sensitive customers do not always purchase from Internet vendors offering the lowest prices. In contrast, value has been considered a key motivator of customer decision making in economics and marketing. However, little is known about the role and effect of value in Internet shopping. This study examines online customer purchase decision making from the value perspective based on mental accounting theory. This study also identifies monetary (perceived price) and non‐monetary (perceived risk, convenience, and pleasure) determinants of value. This study further explains how the individual determinants affect online purchase decision making directly and indirectly though value perception. The findings of this study offer Internet vendors practical suggestions for increasing online sales. This study, with its results, also helps advance knowledge of electronic commerce. © 2009 Wiley Periodicals, Inc.     

Log-concavity and monotonicity of hazard and reversed hazard functions of univariate and multivariate skew-normal distributions

This paper establishes the log-concavity property of several forms of univariate and multivariate skew-normal distributions. This property is then used to prove the monotonicity of the hazard as well as reversed hazard functions. The log-concavity and monotonicity of the hazard and reversed hazard functions of series and parallel systems of components is then discussed. The corresponding results for the multivariate normal distribution follow readily as special cases.     

Sustainable growth rate,optimal growth rate,and optimal payout ratio: A joint optimization approach

This study investigates the investment decision and dividend policy jointly from a non-steady state to a steady state. We extend ,  and  sustainable growth rate model and develop a dynamic model which jointly optimizes the growth rate and payout ratio. We optimize the firm value to obtain the optimal growth rate in terms of a logistic equation and find that the steady state growth rate can be used as the benchmark for the mean-reverting process of the optimal growth rate. We also investigate the specification error of the mean and variance of dividend per share when introducing the stochastic growth rate. Empirical results support the mean-reverting process of the growth rate and the importance of covariance between the profitability and the growth rate in determining dividend payouts. The intertemporal behavior of the covariance may shed some light on the fact of disappearing dividends over decades.