A meta-analysis of the willingness to pay for reductions in pesticide risk exposure

We review the empirical valuation literature on pesticide riskexposure and develop a taxonomy of environmental and human healthrisks associated with pesticide usage. Meta-analysis is thenused to investigate the variation in willingness to pay (WTP)estimates for reduced pesticide risk exposure. Our findingsshow that the WTP for reduced risk exposure is 15 per cent greaterfor medium, and 80 per cent greater for high risk levels, ascompared with low risk levels. The income elasticity of reducedpesticide risk exposure is generally not significantly differentfrom zero. Stated preference approaches based on choice experimentsand revealed preference provide lower WTP estimates than contingentvaluation techniques. Survey design, type of safety device (eco-labelling,integrated pest management, or bans) and chosen payment vehicleare important drivers of the valuation results.     

组织跨界搜索与创新绩效间关系的元分析

检索国内外主要学术数据库中有关跨界搜索与创新绩效间关系的实证文献,对符合元分析要求的33篇文献进行客观分析,发现组织跨界搜索对创新绩效有显著的正向影响。进一步探讨了情景因素、测量因素等对两者关系的调节作用。结果表明:在动态环境及西方文化背景下,跨界宽度搜索对创新绩效的影响更为显著;跨界搜索维度及测度方式正向调节两者关系,但创新绩效的客观测量与主观测量对两者关系的影响并不显著。     

Returns to education in China: a meta-analysis

Within labour economics, returns to education is an area of focused research. Moreover, amongst studies looking at emerging economies, China is the most widely studied economy. While there is a general consensus that returns to education are positive, studies use various datasets and methodologies and consequently present varying estimates of returns to education. We perform a meta-analysis of these estimates of the returns to education in China, addressing issues of heterogeneity in the existing literature and examining whether variations in reported estimates can be explained by study characteristics such as dataset and estimation methods, among others. The meta-regression results show that variations in reported estimates can be accounted for by study characteristics such as data source, estimation method and sample period, among others. The results support the college premium hypothesis and reveal that the returns to education for college graduates are higher than those for other (lower) levels of education.     

Using Clinical Trials to Benchmark Effects Produced in Clinical Practice

This paper proposes an intuitive yet statistical advancement of the benchmarking method (e.g., Weersing and Weisz, 2002, Journal of Consulting and Clinical Psychology 70: 299–310) that could facilitate the assessment of pre-post treatment effectiveness of psychotherapy and other interventions delivered in clinical settings against efficacy observed in clinical trials. Primary development was in the use of the “good-enough principle” (Serlin and Lapsley, 1985 American Psychologist 40: 73–13, 1993, In: G. Keren & C. Lewis (eds.), A handbook for Data Analysis in Behavioral Sciences: Methodological Issues. Hillsdale, NJ: Lawrence Erlbaum Associated, pp. 199–228), which allowed for setting a clinically relevant margin between the benchmarks and the effect sizes observed in clinical settings so as to avoid attaining statistical significance with clinically trivial differences. Examples are given using clinical trials benchmarks of adult depression treatment, followed by instructions and limitations for its use.     

A meta-analysis of national brand and store brand cross-promotional price elasticities

This paper investigates whether price discounts by national brands influence private-label sales and vice versa through meta-analysis of 261 cross-price elasticity estimates from sixteen product-chains. On average, price reductions by national brands and private labels have more or less equal influence on each others' sales. However, there is greater variation in the effect of private-label price cuts across national brands. National brands with large market shares decrease private-label sales through price cuts but are seldom affected by private-label discounts. National brands with lower relative price have greater influence on private-label sales and are also affected more by private-label price cuts.     

中国工业部门资本能源替代问题研究——基于元分析的视角

本文采用元分析方法对有关中国工业部门资本能源替代问题的研究文献进行量化分析。我们采用元回归模型对采用超越对数生产函数模型来估算Morishima替代弹性和交叉价格弹性的研究样本进行分析,发现不同研究者对诸如规模报酬、技术中性等模型假设前提的设定差异是造成研究结果异质性的主要原因。在对这些影响模型估算结果的因素进行控制后,我们重新估算了中国工业部门的资本能源替代弹性,结果表明两者的替代关系是确定的,长期而言,通过加大资本要素的投入可以减少工业部门的能源消耗。     

Susceptibility to Advertising and Perceived Friend Norms: A Meta-Analysis of Materialism in Youths “Meta-Analysis of Materialism in Youths”

This study presents a meta-analysis assessing the antecedents that are associated with the influence that advertising and friends' behaviours have on the formation of materialistic behaviours in youth. We carried out a systematic review in which we identified an initial 217 studies. Of these, 32 were ultimately included in the analysis. Our results revealed significant relationships for the constructs associated directly with susceptibility to advertising (advertising viewing attitudes, attention to advertising, celebrity endorsements in advertising, advertising exposure and TV viewing frequency) and for perceived friends' norms (friends' attitudes, social comparisons with friends and communication with friends) with materialism in youth.     

Effects of perceived retail crowding: a meta-analytic study

ABSTRACT

We performed a meta-analysis to understand the crowding construct in the retail context. The systematic review identified 535 studies, of which 69 were present in the analysis conducted, generating 504 quantitative relationships. Our meta-analysis indicated that the perception of crowding generates many negative feelings, a few positive feelings, minimal perceived value, low attractiveness of the environment and low short- and long-term consequent behaviours. At the methodological level, it was found that student samples and experiments tend to produce a stronger impact on the relationship between crowding and satisfaction. It was also found that the effect of crowding perception on customer satisfaction differed according to cultural influence. Finally, the results did not demonstrate an influence of the type of density (human vs spatial) on the relationship between retail crowding and satisfaction.     

The Robustness of Corporate Social Responsibility and Brand Loyalty Relation: A Meta-Analytic Examination

Abstract

It is largely believed that genuine corporate efforts to embrace social responsibilities stimulate customers to respond positively to such corporations. However, empirical research about the robustness of corporate social responsibility (CSR) and brand loyalty (BL) yields inconsistent findings. Therefore, we aggregated the results of 43 citations consisting of 28495 observations by means of meta-analysis to examine the robustness of the CSR-BL relationship. The findings of our research revealed that the overall effect size of the CSR and brand loyalty relationship is positive and yields a medium effect size. Furthermore, such a relationship was moderated by several contextual factors. We conclude with a theoretical contribution, managerial implications, limitations, and suggestions for future studies     

Opportunism in Buyer–Supplier Relations: New Insights from Quantitative Synthesis

After more than two decades of empirical research examining opportunism, a wide divergence of empirical findings regarding opportunism's antecedents remains. The need for more theoretically practicable and managerially actionable insight into the identity, nature, and scope of the antecedents to opportunism is clear. As such, a meta-analysis of the opportunism literature was conducted to (a) investigate the role of six antecedents (dependence, formalization, centralization, control, uncertainty, and relational norms), (b) resolve the disparate relationships' magnitudes and directions, and (c) identify moderators that might explain the disparate effect sizes. Findings suggest extant research findings are affected by socially desirable response bias; the particular operationalization of constructs, for example, whether measured opportunism is actual or perceived or whether the study omitted key antecedents; and whether the sample included firms offering products or services. Theoretical and managerial implications are developed and discussed.