choice experiment

选择实验
  • 文章类型: Journal Article
    近年来,尽管中国政府正在密切关注食品安全,食品生产企业的认知并不明显。究其原因,信息不对称阻碍了监管信息向食品生产企业的有效传递。在目前的研究中,进行了选择测试,以探索决策者对224家违规食品生产企业政府法规信息的偏好。研究发现,食品生产企业的决策者对地方政府发布的监管信息具有强烈的偏好。优先考虑参考信息,与那些只违反一次法律的人相比,食品生产公司的决策者在有几个违规行为的情况下表现出高度的“参考依赖”心态。此外,不同决策者特征的偏好表现出明显的异质性,各企业对食品安全监管信息的偏好也是如此。建议政府完善食品安全信息公开机制,并专注于为不同类型的企业量身定制信息。
    In recent years, despite the fact that the Chinese government is closely monitoring food safety, the perception of food production enterprises is not obvious. The reason is that information asymmetry hinders the effective transmission of regulatory information to food production enterprises. In the present research, a choice test is conducted to explore the preference of decision-makers for the information on government regulations in 224 food production enterprises with violations. It is found out that the decision-makers of food production enterprises have a strong preference for the regulatory information released by local governments. With a preference for reference information, compared to those who violate the law just once, decision-makers in food production companies that have several infractions exhibit a high \"reference dependence\" mentality. Also, the preference of different decision-maker characteristics shows an evident heterogeneity, as does the preference of various enterprises for the regulatory information about food safety. It is recommended that the government should improve the mechanism of disclosing the information about food safety, and focus on tailoring the information to different types of enterprises.
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  • 文章类型: Journal Article
    这项研究是在Linguere部门进行的,塞内加尔的卢加地区。其目的是探索影响小型反刍动物生产者决定接种小反刍动物的社会经济因素。
    我们使用选择实验方法对200个小型反刍动物生产者进行了疫苗接种意愿和疫苗接种意愿。
    结果表明,影响接种意愿的关键因素,包括疫苗接种的感知益处(98,95CI:96-100%),接种者的类型(91,95CI:87-95%),获取信息(86,95CI:81-91%),疫苗的可用性(80,95CI:74-86%),以及生产者拥有疫苗接种证书(76,95CI:70-82%)。倾向于家庭疫苗接种的生产者的偏好(偏好权重=0.74,p=1%),个体群疫苗接种(偏好体重=0.45,p=1%),选择性参与疫苗接种(偏好权重=0.33,p=0.01),和低成本服务(偏好权重=-0.004,p=0.1)。生产者表示愿意为每只动物接种XOF184(0.3美元),XOF113(0.18美元),和XOF82(0.13美元)用于家庭,个体牛群,和选择性疫苗接种,分别。
    调查结果强调了有针对性的宣传活动和使疫苗接种服务更接近生产者的重要性。
    UNASSIGNED: This study was carried out in Linguere department, Louga region of Senegal. Its objective was to explore the socio-economic factors that influence small ruminant producers\' decisions on vaccination against peste des petits ruminants.
    UNASSIGNED: We carried out a willingness to vaccinate and willingness to pay for vaccination using a choice experiment approach with 200 small ruminant producers.
    UNASSIGNED: Results showed that the key factors that influence willingness to vaccinate, include perceived benefits of vaccination (98, 95%CI: 96-100%), the type of vaccinator (91, 95%CI: 87-95%), the access to information (86, 95%CI: 81-91%), the vaccine availability (80, 95%CI: 74-86%), and the possession of a vaccination certificate by the producer (76, 95%CI: 70-82%). Preferences of producers leaned toward home vaccination (preference weight = 0.74, p = 1%), individual herd vaccination (preference weight = 0.45, p = 1%), elective participation to vaccination (preference weight = 0.33, p = 0.01), and low-cost services (preference weight = -0.004, p = 0.1). Producers expressed a willingness to pay for vaccination per animal of XOF 184 (USD 0.3), XOF 113 (USD 0.18), and XOF 82 (USD 0.13) for home, individual herd, and elective vaccination, respectively.
    UNASSIGNED: The findings underscore the importance of targeted awareness campaigns and bringing vaccination services closer to the producers.
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  • 文章类型: Journal Article
    作为个人消费者的人们经常成为可持续发展活动或沟通的目标,希望在个人层面加强可持续行为。随后在更大的社会规模上进行可持续性转型。然而,心理动机是复杂的,运动需要基于对个人的理解,和上下文,因素支持或阻碍可持续的行为选择。
    在离散选择实验中,参与者在三个房间中的每一个房间进行了假设的在线购买,这些房间旨在唤起人们对享乐的联想,增益,和规范的目标框架。向参与者展示了旨在在购买前促进可持续纺织品消费的运动信息。对于每种产品(T恤或香蕉)享乐(舒适/外观),收益(价格),在在线选择实验中,规范(有机/公平贸易)属性有所不同。
    与具有增益关联的房间相比,在规范房间中对T恤的规范属性的偏好增加了。没有观察到具有享乐或增益启动的房间对选择的影响。
    该研究支持物理空间可以增强目标框架激活和行为选择的假设,但得出的结论是,这种启动效应对主要的特异性敏感。
    UNASSIGNED: People as individual consumers are regularly targeted in sustainability campaigns or communications with the hope of enhancing sustainable behavior at an individual level, with subsequent sustainability transformation at a larger societal scale. However, psychological motivation is complex and campaigns need to be based on an understanding for what individual, and contextual, factors support or hinder sustainable behavioral choices.
    UNASSIGNED: In a discrete choice experiment, participants made hypothetical online purchases in each of three rooms designed to evoke associations to hedonic, gain, and normative goal frames. Participants were shown a campaign message intended to prime sustainable textile consumption prior to the purchase. For each product (t-shirt or bananas) hedonic (comfort/look), gain (price), and normative (organic/ fairtrade) attributes were varied in an online choice experiment.
    UNASSIGNED: Preferences for the normative attribute of t-shirts increased in the normative room compared to the room with gain associations. No effect of the rooms with hedonic or gain priming was observed on the choice.
    UNASSIGNED: The study supports the hypothesis that the physical room can enhance goal frame activation and behavioral choice but concludes that such priming effect is sensitive to specificity of the prime.
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  • 文章类型: Journal Article
    这项研究调查了意大利消费者对草莓的偏好和购买行为,使用最佳-最差缩放方法(BWS)。这种方法可以识别影响草莓购买决策的关键因素,并对不同的选择群体进行表征。为了实现这一目标,对居住在米兰(意大利北部)大都市区的496名受访者进行了调查。个人对12种草莓特性的申报偏好,分为内在的,外在的,和信用属性,首先测量。然后进行潜在类别分析(LCA),以根据个人偏好识别不同的消费者集群。随后,对集群的异质性进行了测试,使用卡方检验,并考虑了社会人口统计学特征和购买习惯。结果表明,在选择草莓的最重要的属性是外观,强调在整个供应链中保存它的重要性,其次是饮食中越来越重要的一个方面,这是健康的好处。被认为最不重要的属性是品牌。这项研究表明,从整体的角度来看,社会人口统计学特征,饮食习惯,对不同草莓属性的感知会影响消费者的偏好和行为。实际影响表明,生产者的传播营销策略有了新的前景,创造更好的品牌标识,并在营销中突出消费者想知道的关于他们选择作为质量认证的水果的所有方面。
    This research has investigated Italian consumers\' preferences for and purchasing behaviors of strawberries utilizing the Best-Worst Scaling methodology (BWS). This approach enables the key factors that influence strawberry purchasing decisions to be identified and different choice groups to be characterized. To achieve this goal, a survey was conducted on a sample of 496 respondents living in the metropolitan area of Milan (North Italy). The declared preferences of the individuals for 12 strawberry characteristics, divided into intrinsic, extrinsic, and credence attributes, were first measured. A Latent Class Analysis (LCA) was then performed to identify different clusters of consumers according to the individuals\' preferences. Subsequently, the heterogeneity of the clusters was tested, using the Chi-square test, and sociodemographic characteristics and purchasing habits were considered. The results suggest that the most important attribute in the choice of strawberries was appearance, highlighting the importance of preserving it throughout the supply chain, followed by one of the increasingly important aspects of diets, which is health benefits. The attribute considered the least important was the brand. This study demonstrates, from a holistic point of view, that sociodemographic characteristics, food habits, and perceptions of different strawberry attributes influence consumers\' preferences and behaviors. Practical implications suggest a new prospective for communication marketing strategies for producers, creating a better brand identity and highlighting in their marketing all of the aspects that consumers would like to know about the fruits they choose as quality certifications.
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  • 文章类型: Journal Article
    尽管作为中国可持续城市发展努力的一部分,城市农业(UA)已经获得了更多的关注,经验知识是有限的。我们对756名上海居民进行了离散选择实验。总的来说,结果表明,受访者支持UA,因为他们倾向于支持所提出的UA方案之一。居民更喜欢利用环保生产的UA设施,提供农业活动,并配备了餐饮设施。由普遍获得设施主持的定期安排的教育活动比不定期的活动更可取。就位置而言,居民更喜欢附近的UA设施,但不一定希望UA设施就在他们面前。在受过高等教育的人群中,普遍获得的偏好更强,那些有中小学生的人,和那些有农业工作经验的人。此外,各种UA属性会影响居民的偏好;总体而言,居民对各种UA属性的偏好具有高度同质性。估算结果中边际支付价值意愿略高于预期。造成这种结果的原因有三个:UA作为中国娱乐设施的特征,上海相对较高的价格水平,以及COVID-19大流行的影响。
    Although urban agriculture (UA) has been gaining greater attention as part of an effort toward sustainable urban development in China, empirical knowledge is limited. We conducted a discrete choice experiment with 756 residents of Shanghai. Overall, the results indicate that respondents supported UA as they tended to favor one of the UA scenarios presented. Residents prefer UA facilities that utilize environmentally friendly production, offer farming activities, and are equipped with dining facilities. Regularly scheduled educational activities hosted by UA facilities are preferred to those on an irregular basis. In terms of location, residents prefer UA facilities that are close by but do not necessarily want UA facilities to be right in front of them. There is a stronger preference for UA among highly educated populations, those with primary and secondary school students, and those with agricultural work experience. Additionally, various UA attributes affect residents\' preferences; overall, there is a high degree of homogeneity in residents\' preferences for various UA attributes. The marginal willingness to pay value is slightly higher than expected among the estimation results. There are three reasons for this outcome: the characteristics of UA as a recreational facility in China, the relatively high price level in Shanghai, and the impact of the COVID-19 pandemic.
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  • 文章类型: Journal Article
    数字安全(SiN)意味着当道路使用者较多时,每个道路使用者的碰撞风险较小。尽管现有文献已经证实SiN的存在是一种客观的安全衡量标准,对感知安全的影响,尤其是在骑自行车的人的背景下,受到的关注要少得多。这项研究调查了SiN对影响路线选择行为的自行车骑手感知安全性的影响。在德里的南德里地区进行了明确的偏好调查。像发布速度限制这样的属性的影响,机动交通量,自行车基础设施,研究了自行车交通/拥挤对路线选择行为的影响。开发了一个二元logit模型来量化这些属性对路线选择的影响。结果表明,总的来说,骑手更喜欢自行车交通较多的路线,因此验证SiN。但效果并不总是成立。对于一些骑手来说,在有专用自行车基础设施的情况下,当感知到的安全性较高时,更多的自行车交通的存在会造成拥挤,并使骑手选择那条路线感到沮丧。研究还表明,骑手更喜欢机动交通和专用自行车基础设施少的路线。结果表明,鼓励基础设施发展以提供横向隔离的政策将鼓励更多的人,因此增加了自行车模式的份额以及骑手的感知安全性。
    Safety-in-Numbers (SiN) implies that the risk of collision per road user is less when there are more road users. Although the available literature has confirmed the existence of SiN as an objective measure of safety, the effect on perceived safety, especially in the context of bicycle riders, has received much less attention. This study investigates the SiN effect on the perceived safety of bicycle riders that influences route choice behavior. A stated preference survey was performed in the South Delhi district of Delhi. The effect of attributes like posted speed limit, the volume of motorized traffic, bicycle infrastructure, and bicycle traffic/ crowding on route choice behavior was investigated. A binary logit model was developed to quantify the effect of these attributes on route choice. The results indicate that, in general, riders prefer routes with more bicycle traffic, hence validating SiN. But the effect does not always hold. For some riders, in the presence of dedicated bicycle infrastructure, when the perceived safety is higher, the presence of more bicycle traffic acts as crowding and demotivates riders to choose that route. The study also reveals that riders prefer routes with a low volume of motorized traffic and dedicated bicycle infrastructure. The outcomes suggest that a policy that encourages infrastructural development to provide lateral separation will encourage more people, hence increasing bicycle mode share as well as the perceived safety of riders.
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  • 文章类型: Journal Article
    目的:确定兽医学生对与工作安排相关的非金钱工作福利的价值。
    方法:美国14所兽医学院的381名以伴侣动物为重点的兽医学生。
    方法:我们采用了一项基于选择的联合实验的调查。采用随机参数logit模型对实验数据进行了分析,从中计算出接受的意愿。
    结果:结果表明,学生希望每周工作4天,每周工作40小时,带薪休假13天。灵活的工作安排价值从大约1500美元到3400美元,具体取决于所分析的属性。带薪休假是最有价值的。
    结论:这些结果将帮助雇主更好地识别即将成为助理兽医的当前偏好,并可以匹配工作机会/工作安排,以加强兽医实践中的招聘和保留。
    OBJECTIVE: To determine the value veterinary students place on nonpecuniary job benefits related to working arrangements.
    METHODS: 381 companion animal-focused veterinary students at 14 US veterinary colleges.
    METHODS: We employed a survey with a choice-based conjoint experiment. The experimental data were analyzed with a random parameter logit model, from which willingness to accept was calculated.
    RESULTS: The results indicated that students would prefer working 4 days a week and closer to 40 hours per week, with 13 days of paid time off. Flexible working arrangements were valued from approximately $1,500 to $3,400, depending on the attribute being analyzed. Paid time off was most highly valued.
    CONCLUSIONS: These results will help employers better identify the current preferences of soon-to-be associate veterinarians and can match job offer/working arrangements to enhance recruitment and retention within veterinary practices.
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  • 文章类型: Journal Article
    动物疫病保险在欧洲动物生产中与动物疫病有关的公共活动中只占次要地位,只要生产者对公共补偿计划抱有强烈的信心,目前的情况可能会持续下去。在这项研究中,我们在芬兰进行了一项农场调查,采用选择实验来研究动物疾病保险产品的支付意愿。我们发现生产者支付动物疾病保险的意愿相对较低,即使间接损失得到弥补。然而,确定了保险产品的属性,这些属性增加了生产者希望以统计上显著的方式购买产品的可能性。最重要的属性是低自付额。使用潜在的类分析,确定了四类生产者,那些(1)不感兴趣的人,(2)对保险有微弱兴趣或(3)对保险有强烈兴趣,此外,(4)强调生物安全措施但不愿意购买保险的团体。那些主要对保险感兴趣的人通常很年轻,来自大型农场的受过良好教育的生产者,他们的农场已经有了良好的生物安全水平。然而,大多数受访者不愿购买保险。分析认为,商业化生产的动物疫病保险可能需要给予补贴或以其他方式对生产者更具吸引力,即便如此,许多生产商可能认为这是不必要的。
    Animal disease insurance plays only a minor role in public activities related to animal diseases in animal production in Europe, and the current situation is likely to persist as long as producers place strong faith on public compensation schemes. In this study, we undertook a farm survey in Finland employing a choice experiment to study the willingness to pay for animal disease insurance products. We found that producers\' willingness to pay for animal disease insurance is relatively low, even if consequential losses are covered. However, attributes of the insurance products which increased the likelihood of the producer wishing to purchase the product in a statistically significant manner were identified. The most important attribute was a low deductible. Using latent class analysis, four classes of producers were identified, those who were (1) not interested, (2) weakly interested or (3) strongly interested in insurance, and additionally, (4) a group who emphasised biosecurity measures but was not willing to purchase insurance. Those primarily interested in insurance were typically young, well-educated producers from large farms, and they already had a good level of biosecurity on their farms. However, the majority of the respondents preferred not to purchase insurance. The analysis suggests that commercial production animal disease insurance may need to be subsidised or otherwise made more attractive to producers, and even so, many producers might consider it unnecessary.
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  • 文章类型: Journal Article
    畜牧业对环境有不利影响,因为它会产生大量的气体排放。在养猪方面,饲料的使用是欧盟动物农场排放的重要来源之一。然而,使用低膳食粗蛋白质(LCP)可以减少养猪对环境的影响,并提供多样化的生态系统服务(ESs)。同时,这些猪的饮食替代品可能比传统的更昂贵,这可能会对农民采用这些替代方案的意愿产生负面影响。公民支付ESs可能是激励农民实施更可持续的猪饮食的可行策略。这项研究的主要目的是评估加泰罗尼亚(西班牙)公民愿意为养猪生产中实施LCP饮食产生的ESs支付的程度。为了实现这个目标,我们在501位公民中进行了在线调查,包括离散选择实验。参与者评估了三种Feed场景,他们的选择使用条件logit模型进行审查。结果显示,市民更喜欢新的猪饮食,包括LCP和非常LCP(VLCP)饮食,传统的猪饮食。然而,对VLCP饮食有明显的偏好,因为他们愿意支付67欧元/年/成人(WTP)。
    Livestock farming has a detrimental effect on the environment since it generates a lot of gas emissions. In pig farming, the use of feed is among the substantial sources of animal farm emissions among the European Union. Nevertheless, the use of Low Dietary Crude Protein (LCP) may reduce the environmental impacts of pig farming and provide diverse ecosystem services (ESs). Concurrently, these pig diets alternatives may result more expensive than the conventional ones, which may negatively affect farmers\' intention to adopt these alternatives. Citizens\' payment for ESs may be a viable strategy to motivate farmers to implement more sustainable pig diets. The primary objective of this study is to assess the extent to which citizens of Catalonia (Spain) are willing to pay for the ESs generated by the implementation of a LCP diet in pig production. In pursuit of this goal, we conducted an online survey among 501 citizens, including a Discrete Choice Experiment. Participants evaluated three feed scenarios, and their choices were scrutinized using conditional logit model. Results revealed that citizens prefer the new pig diets, including both LCP and Very LCP (VLCP) diets, over the conventional pig diet. However, there is a clear preference toward the VLCP diet justified by their willingness to pay (WTP) of €67/year/adult.
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  • 文章类型: Journal Article
    马来西亚需要充分利用其可再生能源资源,以实现2025年可再生能源装机容量31%和2035年40%的目标。为了增强可再生能源的能力,政府成立了一个名为可再生能源基金(REFUND)的基金。在马来西亚,由于大多数制造业每月的用电量超过300kwh,因此它们通过每月的电费为可再生能源做出了贡献。作为马来西亚最高的电力消费国,制造业需要政府投资激励措施来转向可再生能源发电。因此,进行这项研究是为了确定由于投资于可再生能源而导致的制造业的属性偏好。TheChoiceExperiencemethodwasusedwherethemixedLogitmodelwaschoosetoidentifythewillnesstopayforthemanufacturingsectorsbasedontheirpreferencesamongthefourattribes:typesofrenewableenergy,项目位置,温室气体排放量的年度减少,RE基金。研究结果发现,制造业对项目地点的重视程度最高,他们更喜欢将项目位置从当前状况改善到较远的位置。这项研究还可以帮助实现可持续发展目标(SDG)中的目标7,对可再生能源的投资可以保证所有个人都能负担得起,可靠,可持续,和2030年的现代电力。
    Malaysia needs to fully utilize its renewable energy resources to meet its goal of installed capacity of 31% of renewable energy in 2025 and 40% in 2035. In order to empower renewable energy sources, the government has established a fund known as the renewable energy fund (RE FUND). In Malaysia, most manufacturing sectors contribute to the RE FUND through their monthly electricity bills due to their electricity consumption exceeding 300kwh per month. As Malaysia\'s highest electricity consumer, the manufacturing sector needs government investment incentives to switch to renewable energy sources to generate electricity. Therefore, this study was conducted to identify attribute preferences of the manufacturing sector due to investing in renewable energy sources. The Choice Experiment method was employed where the Mixed Logit model was chosen to identify the willingness to pay for the manufacturing sectors based on their preferences among the four attributes: types of renewable energy, project location, annual reduction in GHG emissions, and RE FUND. The study results found that the manufacturing sector places the highest value on the project location, where they prefer to improve the project location from current condition to far location. This study can also help to achieve the Goal 7 in the Sustainable Development Goal (SDG), where investment in renewable energy sources can guarantee that all individuals obtain affordable, reliable, sustainable, and modern electricity in 2030.
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