Alcohol consumption by men in China: A non-Gaussian censored system approach

Consumption of beer, wine and spirits by men in China is investigated, using data from the 2006 China Health and Nutrition Survey. Censoring of consumption levels is accommodated by estimating a censored equation system, using quasi maximum-likelihood and copula methods which allow the specification of non-Gaussian error distributions. Findings suggest that a misspecified error distribution can obscure the effects of explanatory variables on alcohol consumption. The procedure produces very different empirical estimates from a more conventional (Gaussian) estimator. Income does not affect alcohol consumption, with socio-demographic factors such as education, employment, and marital status playing more definitive roles. Regional differences are also found.     

U.S. demand for organic and conventional vegetables: a Bayesian censored system approach

Demand for organic and conventional vegetables is investigated using data from A.C. Nielsen’s 2006 Homescan panel. We use a Bayesian Markov chain Monte Carlo technique, along with data augmentation, to estimate a large linear approximate Almost Ideal Demand System with censored dependent variables. Demands are price elastic, and expenditure elasticities are very high for organic vegetables, whilst demands for conventional vegetables are primarily inelastic. We find a mix of gross substitution and complementarity among the vegetable products, but net substitution is the dominant pattern. Socio‐demographic characteristics also play important roles in demands. These findings can inform deliberations about marketing campaigns, nutrition education and policy interventions.     

Factors affecting users’ continuance intention of mobile social network service

This study investigates the factors that influence users’ intention to continue using social network service applications (apps) on mobile devices. We drew on the uses and gratifications (U&G) paradigm and innovation diffusion theory; these were augmented with the factors that characterize mobile social network service (MSNS) usage. The proposed framework explained the relationships between these factors and the intention to continue using MSNS apps. A web-based survey was used to collect data for analysis. The results indicated that critical mass, mobility, compatibility, purposive value, and entertainment value were important drivers of users’ intention to continue using MSNS apps. The findings contribute to existing U&G paradigm, innovation diffusion theory, and MSNS usage literature. The paper closes with a discussion of useful insights relevant to researchers and practitioners in terms of developing and implementing MSNS apps that have high retention rates.     

THE IMPACT OF TAX PRICE CHANGES ON CHARITABLE CONTRIBUTIONS TO THE NEEDY

Eliminating or reducing the federal charitable deduction can have serious impacts on the level of charitable donations. Tax price elasticity estimates from a multivariate sample selection model indicate that changing the deduction to a 12% tax credit would have reduced individual donations in 2012 by 18.9% if applied to itemizing taxpayers and by 10.5% if extended to nonitemizers. Elimination of the deduction would have led to a 35% reduction in individual charitable donations. Even if coupled with cuts in marginal tax rates, eliminating the charitable deduction will still likely result in substantial reductions given the inelastic income elasticities of charitable donations. The estimates justify the ardent opposition of many in the nonprofit sector to the more radical proposals for changing the tax treatment of charitable contributions. (JEL D34, C34)     

Quasi- and Simulated-Likelihood Approaches to Censored Demand Systems: Food Consumption by Food Stamp Recipients in the United States

A quasi-maximum-likelihood estimator is proposed and applied to a censored Translog demand system for foods, using a sample of food stamp recipients in the United States. The procedure produces remarkably close parameter and elasticity estimates to those of the simulated-maximum-likelihood procedure. A two-step procedure is also considered but it produces different elasticities. Demands are found to be price elastic for pork and fish but price inelastic for all other food products. Gross complementarity and net substitutability are obvious but these cross-price effects are much less pronounced than own-price and total food expenditure effects.     

A multi-agent-based negotiation support system for distributed transmission cost allocation

We have developed a multi-agent system (MAS), based on the network flow model and KQML, called MASCAN, to support negotiations in the cost allocation of network transmission. This is very important to industries that have different entities connected with lines or pipes, such as the Internet and telecommunications. Such an approach is especially useful to the utility industries, such as electricity and gas, and the transportation industry. In the system, each agent represents a node in a network, for example supplier or consumer. Agents do not receive any centralized controls or information from centralized sources to guarantee autonomy–a key requirement for the agent. In this all decisions are made locally based on the rules or knowledge that each agent has or captured to communicate or coordinate with other agents for the cheapest path under fair-play requirements. We also assume that each agent is rational, that is, one of the goals or objectives of agent decisions or movements is to minimize costs or increase profits. The solution to cost allocation is to search for the equilibrium point of a non-cooperative game subject to the given constraints, for example network capacity. We applied MASCAN to model and support the negotiation of cost allocation in power transmission, and the results and how this approach supported the process of negotiation are perceived to be closer to the real-world negotiation and the outcomes were accepted more easily by the participants. Copyright © 2001 John Wiley & Sons, Ltd.     

A study of the relationship between work values and career orientation of employed in the high technology industry

The purpose of this study is to explore the relationship between work values and career orientation for employees in high-tech production. The importance of the high technology industry, acknowledged to be at the most advanced stage of highly developed technology presently available, and is often referred to as micro-electronics, rather than other technologies, has been widely recognized in recent years as it has become a key area in the economic development of Taiwan. As the high-tech industry is capital intensive, has high value-added products and requires a greater number of outstanding professionals, the ultimate criterion for human resources management is critical for companies involved in high technology research and development and manufacturing. The conclusion was used by the study to offer practical and academic recommendations.     

Consumer knowledge and meat consumption at home and away from home

We investigate the roles of consumer knowledge and sociodemographic factors in the consumption of meat products at home and away from home. Censored dependent variables and endogenous dietary knowledge are accommodated by developing and estimating a simultaneous-equations system. Results suggest endogeneity of knowledge and support the system approach to demand functions for meat products. Dietary knowledge decreases consumption of beef and pork at home and away from home but does not affect poultry or fish consumption in either location. Men eat more meat and fish than women, meat consumption declines with age, and regional and racial/ethnic differences are present.