risk perception

风险感知
  • 文章类型: Journal Article
    全球范围内,环境污染仍然是一个重大的公共卫生问题,根据世界卫生组织的说法,污染导致的死亡占每年死亡人数的23%,如果人们生活在更健康的环境中,这是可以预防的。尽管执行了诸如巴马科之类的多边协定和国际条约,巴塞尔,鹿特丹,Minamata,和斯德哥尔摩公约,联合国可持续发展目标,和国家法律,在低收入国家,有毒污染物仍然是一个严重的环境和公共卫生问题。在Kwekwe市的特定背景下,津巴布韦的一个工业和矿区,与工业相关的环境和污染引起的健康问题已被广泛报道,这项研究是与当地社区密切合作进行的.该研究旨在评估Kwekwe市社区成员对与潜在有毒元素和氰化物污染相关的健康风险的看法。对主要利益相关者和工业居住区居民进行了探索性横断面研究。使用与主要线人的面对面访谈以及与居民和工人的焦点小组讨论来收集数据。在数据分析中采用了主题方法。研究参与者,他在研究过程中发挥了至关重要的作用,认为工业污染主要与氰化物有关,汞和铬构成了重大的环境和健康风险。风险感知评估中的这种参与性方法对于深入了解问题的范围和制定干预策略至关重要。然而,鉴于定性研究结果缺乏普遍性和可重复性,需要进行定量研究,以确定有毒化学污染物的环境水平,作为补充和验证措施。
    Globally, environmental pollution continues to be a significant public health problem, and according to the World Health Organisation, pollution-induced deaths account for 23% of deaths yearly, which could be prevented if people lived in healthier environments. Despite implementing multilateral agreements and international treaties such as the Bamako, Basel, Rotterdam, Minamata, and Stockholm conventions, the United Nations Sustainable Development Goals, and national laws, toxic pollutants remain a serious environmental and public health problem in low-income countries. In the specific context of Kwekwe City, an industrial and mining area in Zimbabwe, where environmental and pollution-induced health problems associated with industries have been widely reported, this study was conducted in close collaboration with the local community. The study aimed to assess community members\' perceptions regarding health risks associated with potentially toxic elements and cyanide pollution in Kwekwe City. An explorative cross-sectional study was conducted with key stakeholders and industrial settlements\' residents. Face-to-face interviews with key informants and focus group discussions with residents and workers were used to gather data. A thematic approach was utilised in data analysis. Study participants, who played a crucial role in the research process, perceived that industrial pollution principally linked to cyanide, mercury and chromium posed significant environmental and health risks. This participatory approach in risk perception assessment is critical in providing insight into the scope of the problem and formulating intervention strategies. However, given that qualitative study results lack generalisability and replicability, quantitative studies need to be undertaken to determine environmental levels of toxic chemical pollutants as a complementary and validative measure.
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  • 文章类型: Journal Article
    背景:关于地方性麻风病的社区知识和污名所知甚少。这项研究的目的是评估社区知识,尼日利亚对麻风病的态度和污名。
    方法:这是一项混合方法研究,包括对社区成员的定量横断面调查和与社区成员和麻风病患者进行的定性焦点小组讨论,以及与医护人员和社区领导人进行的关键线人访谈。
    结果:在811名调查参与者中,401(49.4%)的麻风病知识贫乏,这是由文化信仰驱动的,害怕它的传染性和对它的传播途径知之甚少。参与者报告的污名水平很高,解释性模型访谈目录社区污名量表的平均得分为18.96±7.73,社会距离量表的平均得分为9.39±7.03。污名水平受年龄的影响,residence,麻风病的教育和知识。定性数据表明,社区成员害怕麻风病传染性,以及当地的疾病观念和误解为社区对麻风病的态度和行为提供了信息。
    结论:社区成员对,以及对麻风病的高度污名化。需要针对特定文化的健康教育和行为改变干预措施,以解决已发现的差距。
    BACKGROUND: Little is known about community knowledge and stigma towards leprosy in endemic settings. The aim of this study was to evaluate community knowledge, attitudes and stigma towards leprosy in Nigeria.
    METHODS: This was a mixed-methods study consisting of a quantitative cross-sectional survey of community members and qualitative focus group discussions with community members and people affected by leprosy as well as key informant interviews with healthcare workers and community leaders.
    RESULTS: Of the 811 survey participants, 401 (49.4%) had a poor knowledge of leprosy that was driven by cultural beliefs, fear of its contagiousness and poor knowledge of its means of transmission. The participants reported high stigma levels with a mean score of 18.96±7.73 on the Explanatory Model Interview Catalogue Community Stigma Scale and 9.39±7.03 on the Social Distance Scale. Stigma levels were influenced by age, residence, education and knowledge of leprosy. Qualitative data suggested that community members were scared of leprosy infectiousness, and local illness concepts and misconceptions informed attitudes and behaviour towards leprosy in the community.
    CONCLUSIONS: Community members have a poor knowledge of, and high stigma levels towards leprosy. Culture-specific health education and behavioural change interventions are needed to address the identified gaps.
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  • 文章类型: Journal Article
    背景:这项研究探讨了家庭功能依赖老年人非正式照顾者的风险感知特征和影响因素,旨在提高护理人员对护理风险的感知和应对能力,并最终提高这些人的生活质量。
    方法:我们采用目的抽样的方法从郑州市某社区抽取了22名非正式照顾者,河南省,中国,在2023年3月至9月期间,进行了面对面的半结构化深度访谈。数据采用Colaizzi的七步分析法进行分析。
    结果:我们提取了两个主题,护理风险感知特征和护理风险感知相关因素,和八个子主题,感知的风险可能性,感知的风险预期,感知后果的严重性,过去的护理经验,健康素养,心理状态,照顾负担,家庭社会支持。
    结论:非正式看护者如何感知与在家照顾功能依赖老年人相关的风险存在差异,各种因素可能会影响。至关重要的是提供涵盖护理所需知识和技能的培训,提高护理人员的安全风险意识,并建立对护理风险的正确认识。政府必须建立和完善护理人员临时服务的全面框架。同时,医疗保健专业人员应积极开展健康教育工作,以增强非正式护理人员对护理安全风险的认识,从而培养对护理风险感知的准确意识。
    BACKGROUND: This study explored risk perception characteristics and influencing factors among informal caregivers of functionally dependent elderly individuals at home, aiming to improve caregivers\' caregiving risk perception and coping abilities and ultimately enhance the quality of life for these individuals.
    METHODS: We used purposive sampling to select 22 informal caregivers from a community in Zhengzhou City, Henan Province, China, between March and September 2023 and conducted face-to-face semi-structured in-depth interviews. The data were analyzed using Colaizzi\'s seven-step analysis method.
    RESULTS: We extracted two themes, caregiving risk perception characteristics and caregiving risk perception associated factors, and eight sub-themes, perceived risk possibility, perceived risk anticipation, perceived severity of consequences, past caregiving experiences, health literacy, psychological status, caregiving burden, and family social support.
    CONCLUSIONS: There were differences in how informal caregivers perceived the risks associated with caring for functionally dependent elderly individuals at home, which various factors could influence. It was essential to provide training that covered the knowledge and skills needed for caregiving, improve caregivers\' awareness of safety risks, and establish a correct perception of caregiving risks. The government must construct and refine a comprehensive framework for caregiver respite services. Simultaneously, healthcare professionals should proactively undertake health education endeavors to augment the recognition of care safety risks among informal caregivers, thereby cultivating an accurate awareness of care risk perception.
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  • 文章类型: Journal Article
    由于它们的固有特性,杀生物产品可能对人类和动物健康以及环境构成风险。在风险管理中,私人用户对减轻这些风险的使用说明的理解和坚持的意愿存在不确定性(例如,限制使用频率或应用领域)。这项研究旨在通过关注用户的注意力来提供对用户观点的见解,理解,以及保护动机的态度预测因素。在在线研究中(来自德国的N=957名参与者)被引入了一个假设的购买场景,该场景具有昆虫喷雾和一套现实的使用说明。接下来,参与者对使用说明的关注是在自我报告中测量的,并通过跟踪使用说明在页面上花费的时间,而李克特量表型问题衡量了可理解性,保护动机,和预测因子。参与者报告说,如果他们花更多的时间使用说明,则保护动机会更高,认为它是可以理解的,评估对人类的威胁,动物,环境更加严峻,认为自己有责任(即,内部控制源)和有能力(即,自我效能)遵守使用说明,认为遵守使用说明是有效的(即,反应功效),并且没有认为杀生物产品本质上是安全的(即,中性控制点)。这些结果为改进杀生物产品的监管和更好地管理与其使用相关的潜在风险提供了有价值的信息。他们还提供了干预措施的概念,以确保生物灭杀产品的用户遵循安全使用和更好地保护环境的说明。
    Due to their inherent properties, biocidal products might pose a risk to human and animal health and the environment. In risk management, there exists uncertainty about private users\' comprehension of and willingness-to-adhere to use instructions that mitigate these risks (e.g., limit frequency of use or application area). This study aimed at providing insights into the users\' perspective by focusing on their attention, comprehension, and the attitudinal predictors of protection motivation. In the online study (N = 957 participants from Germany) were introduced to a hypothetical purchase scenario featuring an insect spray and a realistic set of use instructions. Next, the participants\' attention for the use instruction was measured in self-report and by tracking the time spent on the page with the use instruction, while Likert scale-type questions measured the comprehensibility, protection motivation, and predictors. Participants reported higher protection motivation if they spent more time with the use instruction, perceived it as comprehensible, rated the threat to humans, animals, and the environment as more severe, perceived themselves as responsible (i.e., internal locus of control) and capable (i.e., self-efficacy) of adhering to the use instructions, perceived adherence to the use instructions as effective (i.e., response efficacy) and did not perceive biocidal products as inherently safe (i.e., neutral locus of control). These results offer valuable information for an improved regulation of biocidal products and better management of potential risks associated with their use. They also provide concepts for interventions to ensure users of biocidal products follow the instructions for a safe use and better protection of the environment.
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  • 文章类型: Journal Article
    目标:被动(即,浏览)与主动(即,参与)在现有文献中对社交媒体在年轻人中使用电子烟的研究不足。这项研究探讨了社交媒体的被动和主动使用与年轻人使用电子烟的差异以及风险认知如何介导这些关联。
    方法:使用了2021年和2022年全国青年烟草调查的汇总数据(N=48,704,年龄11-19岁)。采用加权结构方程模型来估计被动和主动社交媒体使用与青年电子烟使用之间的关联。
    结果:被动和主动社交媒体的使用与年轻人使用电子烟的几率更高,天数更长有关。电子烟风险感知介导了主动使用与使用电子烟的可能性和使用天数之间的关联。风险感知介导了活跃,但不是被动的,使用和使用电子烟的天数。与被动使用相比,积极使用与更高的几率和更多的青少年使用电子烟的天数相关.
    结论:研究结果表明,在设计和执行干预措施时,公共卫生工作应区分被动和主动社交媒体使用。注意和努力还应通过风险感知来理解被动和主动使用社交媒体的独特间接影响。这些发现促进了我们对不同类型社交媒体使用的作用的理论理解,并为干预措施提供了重要的实践见解。
    OBJECTIVE: The impacts of passive (i.e., browsing) versus active (i.e., engagement) use of social media on e-cigarette use among youth have been understudied in existing literature. This study examines how passive and active use of social media are differentially associated with e-cigarette use among youth and how risk perceptions mediate these associations.
    METHODS: Pooled data from the 2021 and 2022 National Youth Tobacco Survey (N=48,704, aged 11-19) were used. Weighted structural equation models were employed to estimate the associations between passive and active social media use and youth e-cigarette use.
    RESULTS: Both passive and active social media use were associated with higher odds and more days of e-cigarette use among youth. E-cigarette risk perceptions mediated the associations between active use and both the likelihood of ever using e-cigarettes and the number of days of use. Risk perceptions mediated the association between active, but not passive, use and the number of days of e-cigarette use. Compared to passive use, active use was overall associated with higher odds and more days of youth e-cigarette use.
    CONCLUSIONS: The findings suggest that public health efforts should distinguish between passive and active social media use when designing and executing interventions. Attention and efforts should also be directed towards understanding the distinct indirect effects of passive and active social media use through risk perceptions. These findings advance our theoretical understanding of the role of different types of social media use and offer significant practical insights for interventions.
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  • 文章类型: Journal Article
    调查临床护士对不良事件风险的认知,并分析其影响因素。采用按比例分层随机抽样的方法从十堰市某医院招聘护士,湖北省,中国。护理不良事件风险感知量表,组织支持问卷,护士经理领导行为问卷,护理安全行为问卷,采用倦怠量表对1084名护士进行调查。单变量分析,皮尔逊相关分析,用多元线性回归分析影响因素。护士不良护理事件风险感知量表评分,组织支持问卷,护士经理领导行为问卷,护理安全行为问卷,倦怠评分分别为14.98±5.39、52.57±10.00、88.98±21.08、56.42±5.03、30.90±21.49。根据相关性分析,护士对不良护理事件的感知与组织支持感呈正相关(r=.457,P<.01),护士长的领导行为(r=.348,P<.01),和护士安全行为(r=.457,P<.01),与职业倦怠水平呈负相关(r=-.384,P<.01)。根据回归分析,护士部门(β=.226,P<.001),每日工作时间(β=1.122,P<.001),不良事件经验(β=-1.505,P<.001),组织支持(β=.105,P<.001),护士长的领导行为(β=.072,P<.001),职业倦怠(β=-.052,P<.001)对护士不良护理事件的风险感知有影响。这些因素解释了总变异的42.5%。护士对不良护理事件的风险感知有待提高。护理管理者需要加强对护士的组织支持,改变护士管理者的领导行为,减少护士的倦怠,提高护士对不良护理事件的风险感知,预防不良事件,并确保患者安全。
    To investigate clinical nurses\' perception of adverse event risk and to analyze its influencing factors. A proportional stratified random sampling method was applied to recruit nurses from a hospital in Shiyan City, Hubei Province, China. The Nursing Adverse Event Risk Perception Scale, Organizational Support Questionnaire, Nurse Manager Leadership Behavior Questionnaire, Nursing Safety Behavior Questionnaire, and Burnout scale was used to investigate 1084 nurses. Univariate analysis, Pearson correlation analysis, and multiple linear regression analysis were used to analyze the influencing factors. The scores of the Nurses\' Risk Perception of Adverse Nursing Event Scale, Organizational Support Questionnaire, Nurse Manager Leadership Behavior Questionnaire, Nursing Safety Behavior Questionnaire, and Burnout Scale were 14.98 ± 5.39, 52.57 ± 10.00, 88.98 ± 21.08, 56.42 ± 5.03, 30.90 ± 21.49, respectively. According to the correlation analysis, nurses\' perception of adverse nursing events was positively correlated with the sense of organizational support (r = .457, P < .01), head nurses\' leadership behavior (r = .348, P < .01), and nurse safety behavior (r = .457, P < .01), and negatively correlated with the level of burnout (r = -.384, P < .01). According to the Regression analysis, nurses\' departments (β = .226, P < .001), daily working hours (β = 1.122, P < .001), adverse events experience (β = -1.505, P < .001), organizational support (β = .105, P < .001), head nurses\' leadership behavior (β = .072, P < .001), and burnout (β = -.052, P < .001) held an influence on nurses\' risk perception of adverse nursing event. These factors explained 42.5% of the total variation. Nurses\' risk perception of adverse nursing events needs to be improved. Nursing managers need to strengthen organizational support for nurses, change the leadership behavior of nurse managers, reduce nurses\' burnout, improve nurses\' risk perception of adverse nursing events, prevent adverse events, and ensure patient safety.
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  • 文章类型: Journal Article
    背景:酒精和处方阿片类药物的使用在慢性疼痛人群中非常普遍。五分之一的服用阿片类药物的人报告当天使用酒精和阿片类药物。酒精使用和酒精/阿片类药物共同使用可能会产生有害的疼痛管理和健康结果。患有慢性疼痛的个体意识到这些有害结果的程度相当缺乏研究。目的:探讨个人对使用酒精/酒精阿片类药物的7种健康和疼痛相关风险的理解。一个探索性的目的是检查更高的风险意识是否与酒精/阿片类药物的使用模式有关。方法:参与者包括261名年龄≥21岁的成年人(36.4%的女性),支持当前饮酒,慢性肌肉骨骼疼痛,和阿片类药物处方,他们通过亚马逊MechanicalTurk完成了一项在线调查。结果:参与者认可意识的项目总数分布如下:零(10.7%),一个(5.0%),两个(13.0%),三(13.8%),四个(13.8%),五个(11.5%),六(10.0%),和七项(22.2%)。对酒精/酒精-阿片类药物使用的健康后果的认识与阿片类药物滥用行为呈正相关(β=.525,ΔR2=.251,p<.001),和高风险饮酒(β=.152,ΔR2=.021,p=.011)。结论:许多患有慢性疼痛的成年人不知道酒精/酒精阿片类药物使用对健康的影响。风险意识与高风险酒精/阿片类药物使用之间存在正相关性的研究结果表明,该人群的未来干预措施应超越简单的风险教育,并利用动机增强来帮助改变决策平衡。
    Background: Alcohol and prescription opioid use are highly prevalent among chronic pain populations. One-fifth of individuals prescribed opioids report same-day use of alcohol and opioids. Alcohol use and alcohol/opioid co-use can have deleterious pain management and health outcomes. The extent to which individuals with chronic pain are aware of these deleterious outcomes is considerably understudied.Objectives: To explore individuals\' understanding of seven health- and pain-related risks of alcohol/alcohol-opioid use. An exploratory aim was to examine whether greater risk awareness was associated with alcohol/opioid use patterns.Methods: Participants included 261 adults age ≥21(36.4% women) endorsing current alcohol use, chronic musculoskeletal pain, and opioid prescription who completed an online survey via Amazon Mechanical Turk.Results: Distribution of the total number of items for which a participant endorsed awareness was as follows: zero (10.7%), one (5.0%), two (13.0%), three (13.8%), four (13.8%), five (11.5%), six (10.0%), and seven items (22.2%). Awareness of the health consequences of alcohol/alcohol-opioid use was positively associated with opioid misuse behaviors (β = .525, ΔR2 = .251, p < .001), and higher-risk alcohol consumption (β = .152, ΔR2 = .021, p = .011).Conclusion: Many adults with chronic pain are unaware of the health consequences of alcohol/alcohol-opioid use. Findings of positive covariation between risk awareness and higher-risk alcohol/opioid use suggest that future interventions among this population should go beyond simple risk education and utilize motivational enhancement to help change decisional balance.
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  • 文章类型: Journal Article
    视觉语言模型在各个领域都很有趣,包括自动驾驶,计算机视觉技术可以准确检测道路使用者,但是车辆有时无法理解上下文。这项研究检查了GPT-4V在预测人类评估的交通图像中“风险”水平方面的有效性。我们使用了从移动车辆上拍摄的210张静态图像,每个人以前被大约650人评级。基于心理测量学建构理论,运用自我一致性提示方法的见解,我们提出了三个假设:(I)在有效相同的条件下重复提示增加了有效性,(ii)与使用单个提示相比,改变提示文本并提取总分增加了有效性,和(Iii)在多元回归分析中,结合对象检测特征,除了基于GPT-4V的风险评级,显著有助于提高模型的有效性。有效性通过与人类风险评分的相关系数量化,在210张图片中。结果证实了这三个假设。最终的有效性系数为r=0.83,表明可以使用AI高度准确地预测人口水平的人类风险。研究结果表明,GPT-4V必须以等同于人类填写多项目问卷的方式进行提示。
    Vision-language models are of interest in various domains, including automated driving, where computer vision techniques can accurately detect road users, but where the vehicle sometimes fails to understand context. This study examined the effectiveness of GPT-4V in predicting the level of \'risk\' in traffic images as assessed by humans. We used 210 static images taken from a moving vehicle, each previously rated by approximately 650 people. Based on psychometric construct theory and using insights from the self-consistency prompting method, we formulated three hypotheses: (i) repeating the prompt under effectively identical conditions increases validity, (ii) varying the prompt text and extracting a total score increases validity compared to using a single prompt, and (iii) in a multiple regression analysis, the incorporation of object detection features, alongside the GPT-4V-based risk rating, significantly contributes to improving the model\'s validity. Validity was quantified by the correlation coefficient with human risk scores, across the 210 images. The results confirmed the three hypotheses. The eventual validity coefficient was r = 0.83, indicating that population-level human risk can be predicted using AI with a high degree of accuracy. The findings suggest that GPT-4V must be prompted in a way equivalent to how humans fill out a multi-item questionnaire.
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  • 文章类型: Journal Article
    这项研究的目的是评估物理参数/因素(温度,相对湿度,噪音,和照度水平)PHC设施中的工作环境,评估这些测量的物理参数的适当性与PHC设施及其周围环境的物理特征之间的关联,并评估卫生专业人员对PHC工作环境中暴露于物理风险的看法与在相同设施中测量的物理参数的适当性之间的关联。该研究监测了巴西南部的23个PHC设施,并采访了210名卫生专业人员。数据分析涉及皮尔逊卡方,费希尔的精确检验,斯皮尔曼的相关性,多元线性回归分析用于控制混杂因素。显著性水平设定为5%(p≤0.05)。温度和相对湿度的组合显示热舒适水平超出了所采用的咨询充分性标准(室外相对湿度,p=0.013)和手术室(前门打开,p=0.034)。在疫苗接种中发现早班的声音舒适度(噪音)水平不足(前门打开,p=0.021)和咨询室(人员流动,p=0.016)。在接待室照明不足的PHC设施中,内部窗帘的打开频率较低(p=0.047)。对卫生专业人员对物理因素的看法的分析表明,医生更频繁地感知温度和湿度的物理风险(p=0.044)。PHC设施中的护士(p=0.004)和口腔卫生技术人员(p=0.031)越多,监测的物理参数的一般充分性百分比越大。还证实,卫生专业人员对中度或重度身体风险的看法越高,评估的PHC设施的工作环境的物理参数的适当性的一般百分比越低(rs=-0.450,p=0.031)。这项研究的证据有助于更好地了解身体状况和未来的职业干预措施,以确保舒适,安全,以及PHC工人的福祉。
    The objectives of this study were to assess the adequacy of physical parameters/factors (temperature, relative humidity, noise, and illuminance levels) of the work environment in PHC facilities, to evaluate the association between the adequacy of these measured physical parameters and the physical characteristics of the PHC facilities and their surroundings and to assess the association between health professionals\' perceptions about exposure to physical risks in the PHC work environment and the adequacy of physical parameters measured in the same facilities. The study monitored 23 PHC facilities in southern Brazil and interviewed 210 health professionals. Data analysis involved Pearson\'s chi-square, Fisher\'s exact test, Spearman\'s correlation, and multivariate linear regression analysis was used to control for confounding factors. The significance level was set at 5% (p ≤ 0.05). The combination of temperature and relative humidity presented thermal comfort levels outside the adopted criteria for adequacy in consultation (outdoor relative humidity, p = 0.013) and procedure rooms (front door open, p = 0.034). Inadequate sound comfort (noise) levels in the morning shift were found in the vaccination (front door open, p = 0.021) and consultation rooms (movement of people, p = 0.016). In PHC facilities where reception rooms had insufficient lighting, internal curtains were opened less frequently (p = 0.047). The analysis of health professionals\' perceptions of physical factors demonstrated that physicians more frequently perceive the physical risk of temperature and humidity (p = 0.044). The higher the number of nurses (p = 0.004) and oral health technicians in the PHC facilities (p = 0.031), the greater the general percentage of adequacy of monitored physical parameters. It was also confirmed that the higher the perception of moderate or severe physical risk among health professionals, the lower the general percentage of the adequacy of the physical parameters of the work environment of the PHC facilities evaluated (rs = -0.450, p = 0.031). This study\'s evidence contributes to a better understanding of physical conditions and future occupational interventions to ensure the comfort, safety, and well-being of PHC workers.
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  • 文章类型: Journal Article
    中国农民,尤其是小的,在收获季节总是以低价出售他们的食物,而不是以更好的价格储存。基于期望效用的理论框架,本文研究了风险感知影响农民食品销售时机选择的机制以及风险偏好所起的作用,利用2019年中国家庭数据库和中国家庭金融调查的数据,对小麦主产区的六个省份的农户进行了调查。这项研究表明,与跨期销售相比,具有高风险认知的农民更有可能选择当前销售。渠道和机制分析发现,在效用比较中,风险感知的增加导致跨期销售的风险收益低于当前销售的某些收益。进一步发现,风险偏好对农民跨期食品销售中的风险感知具有替代作用。
    Chinese farmers, especially small ones, always sell their food at low prices during harvest season rather than storing it for a better price. Based on a theoretical framework of expected utility, this paper examines the mechanism by which risk perception affects farmers\' timing choices of food sales and the role played by risk preference, utilizing data from the 2019 China Family Database and the China Household Finance Survey of farmers in six provinces of the main wheat-producing regions. This study shows that farmers with a high risk perception are more likely to choose current sales compared with intertemporal sales. The channel and mechanism analysis finds that increased risk perception leads to risky returns from intertemporal sales lower than certain returns from current sales in utility comparisons. It is further found that risk preference has a substitution effect on risk perception in farmers\' intertemporal food sales.
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