Measuring benefits from spatially-explicit surface water quality improvements: The roles of distance,scope, scale,and size

Programs to improve water quality do not improve all water bodies equally. Evaluation of the benefits of such programs must account for where improvements occur and the relative magnitude of improvements that occur in different places. This study uses a choice experiment survey to explore how the value to a household of a surface water quality improvement varies as a function of (i) the distance between the household and the affected streams and rivers, (ii) the degree to which the quality of the water has been improved, (iii) how many stream and river miles have been improved, and (iv) the sizes of the affected streams and rivers. Results show evidence that value declines with distance in an approximately linear way, weak evidence that large rivers are worth more than small rivers, and no evidence that willingness-to-pay is nonlinear in either the degree of water quality improvement or the number of stream miles improved. These results indicate that it may be defensible in applied work to value small, spatially-explicit water quality improvement projects independently and then sum over projects.     

Collective-based ad transparency in targeted hotel advertising: Consumers’ regulatory focus underlying the crowd safety effect

Facing transparency requirement of ad generation process, digital marketers need to design proper transparency messages to preempt consumer backlash. Based on crowd psychology literature and the regulatory focus theory, we proposed and tested the crowd safety effect of the collective-based (vs. individual-based) ad transparency strategy with two experimental studies in the context of online hotel booking. Results of two studies consistently demonstrate the crowd safety effect of the collective-based transparency on enhancing hotel booking intention and ad click-through willingness. Furthermore, we found that consumers’ trust toward the ad, rather than privacy concern, mediates this positive effect. These findings help us better understand how social dimensions in ad transparency messages shape consumer responses, as well as the role of consumer trust in promoting targeted ad effectiveness through promotion focused behaviors.     

2019—2020年长沙市生产安全事故统计分析

为探究生产安全事故的演化规律，基于长沙市2019—2020年生产安全事故的数据，从事故发生时间、发生区域、行业和领域分布、事故等级等方面进行分析。研究表明：2019—2020年事故数量和死亡人数呈下降趋势，1月、8月、10月事故数量和死亡人数较多，2月事故数量和死亡人数少；非主城区的事故数量和死亡人数高于主城区，事故数量和死亡人数在空间上的分布比较均衡；道路运输和工矿商贸行业在全市生产安全事故中占绝大多数；工矿商贸行业中，建筑施工行业的事故数量和死亡人数最多；一般事故所产生的事故数量和死亡人数最多，重大事故的事故死亡率最高。     

Consumers buying behaviour towards agri-food products: A mixed-method approach

This study aims to identify the factors that can influence consumer purchasing behaviour in the context of agri-food. Based on the Stimulus-Organism-Behaviour-Consequence theory, this study proposed a model to explain purchasing behaviour that included environmental factors as well as a set of cognitive processes. This study adopted a mixed method approach and in the first stage, a qualitative analysis was conducted to extract the constructs for the study. In the second stage, the quantitative analysis was performed by means of CB-SEM using 891 responses collected through a survey. This resulted in identifying the factors that influence agri-food purchasing behaviour. According to the findings, health consciousness and food safety concerns in the form of a stimulus have a positive relationship with agri-food image, agri-food label, and agri-food benefits acting as the organism. Similarly, the three organisms have a positive relationship with trust. Ethnocentrism is also found to have positive and significant association with trust. The combination of trust and ethnocentrism has consequences, in the form of agri-food purchase behaviour. The study's findings have significant implications for marketers and marketing strategists.     

西餐牛肉类初加工与食品安全控制分析

牛肉是西餐主要的食材之一。本文通过对牛肉的初加工技术进行分析,探究对西餐牛肉类进行食品安全控制的措施,以提高牛肉类产品的整体质量,使西餐牛肉类产品能够达到我国食品安全的标准。     

突发公共事件对电影行业影响的量化研究

人工收集和整理2012—2018年在中国市场上映的首轮院线电影信息数据，构建电影需求的嵌套logit回归模型，以新冠肺炎疫情为准自然实验，来量化突发公共事件对电影行业复产复工的影响。结果显示：第一，关于上映时间选择，在恢复营业后，如果所有因为疫情尚未上映的电影选择顺延上映能有效避免过度竞争的局面。第二，关于上映节奏控制，控制好未定档电影的上映节奏，保持适当的竞争能促进经济效益提升。其中，从11月份开始以每周两部的频率上映未定档电影的经济效益最佳。第三，关于上映方式选择，与线下播放相比，疫情期间选择线上播放能及时收回成本并有利于经济收益最大化的实现。研究结论为电影行业制定复产复工策略提供依据，为未来应对突发公共卫生事件提供参考。     

Preventing motor vehicle crash injuries and deaths: science vs. folklore lessons from history

Abstract

Not long after the beginnings of motorization in the early 1900s, deaths and injuries from motor vehicle crashes became a problem in a number of high-income-countries (HIC)s, especially the United States. With the biggest problem the US led early efforts to address this issue, and for six decades these efforts were based on folklore (ie a body of widely held but false or unsubstantiated beliefs). They were not evaluated, but clearly were unsuccessful as crash deaths and injuries continued to rise. It was not until the 1970s that a broader range of countermeasures began to be adopted and was scientifically evaluated, and as a result, crash deaths and injuries declined. This history has important lessons today for many low-and-middle-income countries that have growing numbers of motor vehicle crash deaths and injuries, many of which are pedestrians and motorcyclists. This is because there continue to be advocates for many of the failed approaches (especially educational) that dominated the early efforts in HICs.     

Covid-19-tested food labels

While the transmission of virus SARS-CoV-2 via food is rare, some Chinese food retailers are considering a Covid-19-tested food label. However, how consumers may support such a label is unknown. We quantify Chinese consumers’ willingness to pay (WTP) for food carrying a Covid-19-tested label using an online choice experiment. We find that the WTPs for such a label are always positive for all food products considered. The amount of WTP depends on the entities authenticating the labels, country of origin of the food, and consumers’ socio-demographic status. Contrary to expectation, the knowledge on Covid-19 does not affect consumer preferences for the Covid-19-tested food labels. Our benefit and cost analysis suggests a possible large benefit of creating and administering a Covid-19-tested food label. This study provides insights for policymakers, global food manufacturers, and retailers to create marketing strategies to alleviate consumer food safety concerns associated with Covid-19.     

Climate for conflict management,exposure to workplace bullying and work engagement: a moderated mediation analysis

The present study investigates a potential preventive factor in relation to workplace bullying. Specifically, we examine how climate for conflict management (CCM) may be related to less bullying, increased work engagement, as well as whether CCM is a moderator in the bullying engagement relationship. The study was based on a cross-sectional survey among employees in a transport company (N = 312). Hypotheses were tested simultaneously in a moderated mediation analysis which showed that bullying and job engagement were related (H1), CCM was related to less reports of bullying (H2), CCM was related to work engagement (H3) and that CCM was indirectly related to job engagement through bullying (H4), but only when CCM was weak (H5). That is, CCM moderated the relationship between bullying and work engagement in that this relationship only existed when CCM was low. The present study contributes to theory within this research field by showing that organizational measures may not only prevent bullying, but may also affect how employees react when subjected to bullying. Furthermore, the effect of climate in relation to bullying may be down to the narrow bandwidth facet of CCM. The study informs employers how they may act to prevent bullying while also reducing the potential negative outcomes of those cases of bullying that inevitably will show up from time to time.     

Re-testing Prebisch–Singer hypothesis: new evidence using Fourier quantile unit root test

The Prebisch–Singer hypothesis in economics asserts that over time the relative price of primary goods relative to manufactured goods should experience a downward trend. To test the hypothesis, we must first establish the unit root properties of the relative price term and then regress the stationary series on a trend term. We use the quantile unit root test which allows for both smooth unknown numbers and the form of breaks in the trend function through a Fourier function to show that the relative price of 23 out of 24 primary goods is stationary. However, the Prebisch–Singer hypothesis is supported only in half of the primary commodities.