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21.
Kenshi Itaoka Aya Saito Alan Krupnick Wiktor Adamowicz Taketoshi Taniguchi 《Environmental and Resource Economics》2006,33(3):371-398
The objective of this study is to estimate willingness to pay (WTP) for the reduction of mortality risks caused by fossil
fuel (natural gas, coal and oil) versus nuclear electric power generation systems and to examine the influence of risk characteristics
involved with electric power generation on WTP. A choice experiment was conducted to achieve these objectives. The attributes
for nuclear risks in the experiment included the probability of disasters and the expected losses if a disaster occurs. We
find evidence of (i) a baseline effect (where WTP is sensitive to hypothetical versus actual baseline expected mortality);
(ii) a ‘labeling effect,’ where, surprisingly, the term ‘nuclear’ has no effect on WTP, but the term ‘fossil-fueled power
generation’ results in lower WTP; and (iii) disaster aversion, meaning that people focus on the conditional loss from a nuclear
disaster, not the probability. We also find that the WTP for reducing deaths from a nuclear disaster is about 60 times the
WTP for routine reducing fossil-fuel generation-related deaths. 相似文献
23.
加强专业设计型实验提高学生的综合素质 总被引:1,自引:0,他引:1
马明前 《安徽工业大学学报(社会科学版)》2002,19(2):113-114
专业设计型实验是培养学生综合运用知识能力的有效方式.开展专业设计型虚拟实验应给学生创造一个宽松和谐的环境,经过反复实践,将实验中心建成强化学生综合能力、创新能力培养的基地. 相似文献
24.
政策性农业保险推广对农民收入的增进效应与作用路径解析--对渐进性试点的准自然实验研究 总被引:1,自引:0,他引:1
政策性农业保险作为重要的支农政策工具之一,除了起到农业风险管理作用之外,从长期来看还具有促进农民增收等效应。本文通过对已有文献进行梳理,讨论了政策性农业保险推广对农民收入增加的作用路径,并基于准自然实验的思路,将我国各省开展政策性农业保险试点作为外生冲击,利用2000~2016年的省级数据,使用渐进性双重差分的方法,评估政策性农业保险推广对农村居民收入以及收入结构的长期影响效果。研究发现,政策性农业保险试点对农村居民人均农业收入和人均非农收入的影响均是正向显著的,并且有助于区域内农村居民非农收入比重提高,这一效果随试点时间推进不断强化。此外,本文进一步检验了政策性农业保险推广对于城乡关系的间接效应,发现政策性农业保险试点对城镇居民收入的影响不大,对城乡收入差距缩小具有一定作用。 相似文献
25.
26.
本试验以砂浆性能为研究对象,采用Box-Behnken的中心组合实验设计及响应面分析方法对腻子粘结强度进行预测研究。试验选用三因素三水平的响应曲面分析法,建立了粘结强度的二次多项数学模型,并以粘结强度为响应值作响应面和等高线,考察了水粉比、灰粉比和胶粉比对粘结强度的影响,并根据实际选择响应曲面方程,利用最小二乘法估计相应的系数,剔除最不显著因素,建立最终的数学方程。结果表明:该预测模型能很好地描述粘结强度与水粉比、灰粉比和胶粉比之间的关系,可以对腻子粘结强度进行分析和预测,为砂浆性能研究提供一种新方法。 相似文献
27.
Experiments conducted in the US and France were used to study how individuals make trade-offs between health and taste for themselves and others. When someone receives a choice made for them that differs from their preference, they experience a welfare loss; at least in the short-term. We measure the empirical magnitude of this loss, and suggest it play a role in assessing the desirability of paternalistic policies motivated by behavioural economics. We show that the welfare loss changes with the provision of new information and the impact of this information differs for the two countries. 相似文献
28.
Country of origin labeling for complex supply chains: the case for labeling the location of different supply chain links 下载免费PDF全文
Jason M. Bienenfeld Elizabeth R. Botkins Brian E. Roe Marvin T. Batte 《Agricultural Economics》2016,47(2):205-213
We investigate the value of a country of origin label (COOL) that separately identifies the geographic location of different stages in a food product's supply chain. We estimate the willingness‐to‐pay (WTP) of U.S. consumers for a packaged cereal product where the key grain ingredient may be grown in one country and processed in a second country (multicountry supply chain) and compare it to equivalent products that have both stages located in a single country. We find consumer WTP for products with single‐country and multicountry supply chains are statistically different, meaning that simplifying a multicountry label by listing only the country where the ingredients are grown or only the country where the ingredients are processed can result in different consumer values. We also find that for countries with a poor quality reputation, consumers respond more negatively when that country has the “last touch” than when that country's involvement is limited to upstream supply chain links. 相似文献
29.
Recreation carrying capacity (RCC) is one of the most important indictors used in measuring the usage limits for the forest park resources. However, the consensus has not been reached with respect to the RCC’s content and its measuring metrics. In this paper, we attempt to establish a new RCC theoretical framework based on the demand theory of the tourism product characteristics. In the process, the choice experiment and orthogonal design methods are used in questionnaire designs and the conditional Logit model is used for parameter estimates. More than 700 park visitors are surveyed for data collection at the Shenyang National Forest park of Liaoning province in China. The primary park attributes being considered encompass vegetation, coverage, water quality, number of rubbish on the park trail path, admission fees, and congestion. The carrying capacity threshold for each specific attribute is identified. 相似文献
30.
This research investigates how the public of a middle‐income country, Thailand, values ecosystem services associated with irrigated rice agriculture using a choice experiment. The results show a significant willingness to pay for services such as drought mitigation, water quality and the environment and maintenance of rural lifestyles and rice landscapes. The iterative procedure developed to fully analyze the incidence of attribute nonattendance (ANA) improved the model fit when compared with a multinomial logit model or an ANA model with potentially only one attribute ignored at a time (ANA‐1). Moreover, the inferred probability of the class of respondents having attended all attributes was 45%, compared to 9% with ANA‐1 model. However, it also suggests that 55% of the respondents made their choices by considering only two of the five attributes. Finally, this research also suggests that failing to consider ANA does not change the public ranking of scenarios contrasted by the services they would provide but would overestimate the WTP for these scenarios. 相似文献