经济增长与不平等对我国农村脱贫时间的影响

选择FGT贫困指数和脱贫时间指数，利用世界银行公布的我国农村贫困线和收入分配分组数据。对比分析了1981年-2005年以来的农村贫困变化趋势。研究发现，农村贫困状况虽然总体上呈缓解趋势，但在脱贫时间指数的构成中，由于不平等所延长的脱贫时间，无论从绝对量还是相对量上都明显提高，这说明收入分配的恶化已经成为反贫困的严重障碍，这种变化趋势值得高度关注。     

Analysis of Consumer Preferences for Quality and Safety Attributes in Artisanal Fruit Juices in Kenya

This study used choice experiment survey data from a random sample of 374 respondents to analyze consumer preferences for quality and safety attributes of artisanal fruit juices in Kenya. Results show that consumers had a positive and significant preference for single fruit juices compared to fruit mixtures, private rather than public inspection of the juices, traceability of fruit origin, and vendor’s health. Additives such as colorants, flavors, and preservatives were not preferred. Consumers were willing to pay premiums of up to 200% for artisanal juices that contain single fruits, lack additives, and are inspected by private agencies. These insights should be incorporated in ensuring that artisanal fruit juice designs comply with food quality and safety requirements. Further, there is a need to license and regulate the artisanal juice preparation and handling and to provide training to the handlers on safety and quality requirements.     

Consumer preferences before and after a food safety scare: An experimental analysis of the 2010 egg recall

In August 2010, more than half a billion eggs were recalled in the U.S. because of a Salmonella outbreak. This study examines the effect of the recall with a unique pair of auction experiments investigating willingness to pay (WTP) for conventional and organic eggs, one conducted shortly before and one right after the recall with the same participants. In addition to the before and after bids, participants bid again after a negative information or balanced information treatment about the event. Accompanying surveys showed consumers had a high level of awareness of the recall but less knowledge of specific details, and viewed information on egg farm conditions as very important in their WTP. While there were no significant before and after differences, WTP for organic eggs significantly increased in the negative information treatment, and balanced information had a positive effect on consumer WTP for conventional eggs.     

CORPORATE SOCIAL RESPONSIBILITY: A MICROECONOMIC REVIEW OF THE LITERATURE

This paper provides a review of the theoretical and empirical literature on Corporate Social Responsibility (CSR). Depending on whether an individual can be considered as selfish, or whether she has also social preferences, motives for CSR, can be explained in different ways. Furthermore, we explicitly highlight the influence of different Corporate Governance System on CSR as well as the relationship between firms' size and social commitment. Because it is difficult to distinguish between different theories in empirical studies, we argue that an experimental approach might be suitable to test theories of CSR.     

Food preferences as a proxy for adventurousness

Food preferences have been demonstrated to be a proxy measure for adventurousness, in general. This study demonstrates that a single variable of food preferences unveils the four dimensions of adventurousness that are applicable in a general tourism context. The findings suggest that adding this simple semantic differential question to visitor surveys can be a powerful tool to evaluate the critical factor of adventurousness in tourism.     

A Framework for the Simultaneous Measurement of Spatial Variation and Temporal Movement in Prices in a Heterogeneous Country: The Dynamic Household Regional Product Dummy Model

This paper contributes to the growing literature on spatial prices in large heterogeneous countries. While the literatures on spatial variation and temporal movement in prices have grown in parallel, this study marks a departure by providing a unified treatment and proposing a comprehensive framework that allows both approaches. The proposed model is based on twin extensions of the household version of the “country product dummy model” by allowing for a dynamic stochastic specification and interdependence of spatial prices of geographically adjacent regions. Tests of temporal stability and regional independence of the estimated spatial prices are proposed and applied in this paper. The paper shows that the introduction of an autoregressive error process of order one, AR(1), improves the efficiency of the estimates of parameters, urban‐rural and temporal price indices under certain conditions. The Indian application points to a rich potential for using the proposed framework in cross country comparisons such as the International Comparison Program (ICP) exercises.     

The moderating role of demographic variables on customer expectations in airport retail patronage intentions of travellers

The international airport retail business is expanding annually, yet most research into traveller’s experience with the aviation industry have centred on aeronautical features. The study gathered information that would guide the understanding of airport customer retail expectations. Specifically, the study examines the effects of product-relevant factors, market-relevant factors, and perceived service quality on retail patronage intentions, taking into account the moderating role of demographic variables. The purposive sample of three hundred and thirty (330) travellers that were selected at the Kotoka International Airport Terminal 1 and 2 (KIA T1&2) in Accra, the capital of Ghana. The findings show that product-relevant factors, market-relevant factors and overall service quality significantly influence airport retail patronage intention. The effect demographic variables was noticeable among older and high-income consumers. Building on previous studies, we find that product-relevant factors, market-relevant factors, and perceived service quality function as viable signals that drives customer expectations.     

Modeling the time varying volatility of housing returns: Further evidence from the U.S. metropolitan condominium markets

This study extends the literature on modeling the volatility of housing returns to the case of condominium returns for five major U.S. metropolitan areas (Boston, Chicago, Los Angeles, New York, and San Francisco). Through the estimation of ARMA models for the respective condominium returns, we find volatility clustering of the residuals. The results from an ARMA‐TGARCH‐M model reveal the absence of asymmetry in the conditional variance. Dummy variables associated with the housing market collapse unique to each metropolitan area were statistically insignificant in the conditional variance equation, but negative and statistically significant in the mean equation. Condominium markets in Los Angeles and San Francisco exhibit the greatest persistence to volatility shocks.     

The not-so-generalised effects of the Generalized System of Preferences

We use an empirical gravity equation to study how non-reciprocal trade preferences (NRTPs), enacted mainly through the Generalized System of Preferences, affect the exports of the beneficiary nations. In line with existing studies, the average trade effect stemming from non-reciprocal preferences is highly unstable across specifications. However, once we allow for heterogeneous effects, results become robust and economically important. Specifically, NRTPs have a strong effect on the exports of beneficiaries when they are members of the World Trade Organization and are very poor. Not-so-poor beneficiaries also expand foreign sales, but only if they are not WTO members. For all others, the average export effects of NRTPs are mute.     

基于JIT思想对汽车玻璃生产线WIP的控制策略

本文分析了汽车玻璃加工生产线的生产流程,生产车间不同种类的在制品(WIP)数量很庞大,为此研究生产线的瓶颈工序,得到瓶颈工序生产线的切换时间对WIP库存的影响,研究生产线的切换时间、工序之间的生产节拍比和WIP库存数三者之间的关系,结合JIT和WIP库存控制策略来保证生产线的流畅生产,归纳出关键的工序节拍比下所需的WIP库存数的动态变化情况,从而动态地控制WIP库存的变化并最大程度地降低车间的WIP库存。