• 대한산업공학회지
• /
• 제15권2호
• /
• pp.33-44
• /
• 1989

This paper presents stochastic-statistical dominance rules which eliminate dominated alternatives thereby reduce the number of satisficing alternatives to a manageable size so that the decision maker can choose the best alternative among them when neither the utility function nor the probability distribution of outcomes is exactly known. Specifically, it is assumed that only the characteristics of the utility function and the value function are known. Also, it is assumed that prior probabilities of the mutually exclusive states of nature are not known, but their relative bounds are known. First, the notion of relative risk aversion is used to describe the decision maker's attitude toward risk, which is defined with the acknowledgement that the utility function of the decision maker is a composite function of a cardinal value function and a utility function with-respect to the value function. Then, stochastic-statistical dominance rules are developed to screen out dominated alternatives according to the decision maker's attitude toward risk represented in the form of the measure of relative risk aversion.

• 대한불안의학회지
• /
• 제10권2호
• /
• pp.85-94
• /
• 2014

Non-pharmacological treatments have long been used for paraphilia or sexual offenders, but few clinical studies were conducted. However, recently there were issued cognitive behavioral therapy of paraphilia or sexual offenders based on the research findings obtained so far. In addition, there were the changes of Diagnostic and Statistical Manual of Mental Disorder by American Psychiatric Association at 2014. The methods of cognitive behavioral therapy for paraphilia or sexual offenders were electric aversion therapy, olfactory aversion therapy, ammonia aversion therapy, covert sensitization, masturbatory reconditioning, directed masturbation, verbal satiation, social skill training, assertiveness training etc. By synthesizing the newly reported foreign guidelines for treatment and review articles, the aim of this study is to investigate the non-pharmacologic therapies used for treatment of paraphilia or sexual offenders.

• Animal cells and systems
• /
• 제3권1호
• /
• pp.41-46
• /
• 1999

An experiment was conducted among free-ranging red-winned blackbirds (Agelaius phoeniceus) that acquired illness-induced conditioned taste aversion (CTA) by consuming insect prey tainted with a dose of parathion up to 2.0 mg/kg consumer body weight. Birds quickly acquired CTA and avoided all four insect prey during a lengthy posttest without parathion. This experiment proved that organophosphate insecticide application in the field might decrease the food consumption of wild birds and may also affect the reproductive success of breeding birds. Thus, CTA acquired accidentally after eating insecticide contaminated insect prey appears to be one of the reasons for the decreasing number of breeding songbirds in North America.

• 대한지역사회영양학회지
• /
• 제14권5호
• /
• pp.531-544
• /
• 2009

This study was conducted to survey multiple factors of aversion to vegetables and preferences for vegetable-related recipes in school meal services among elementary school children in order to help develop various menus and recipes for school meal services. Questionnaire survey was carried out with the study subjects, who were 401 children in 6th grade attending elementary schools in Chonnam and Kwangju metropolitan regions. Results from the survey can be summarized as follows: 65.1% of respondents answered they try to eat vegetables and other namul side dishes served in school meal service for health. As for the frequency of taking vegetables and namul side dishes out of daily meals, 47.4% of respondents chose 'once or twice'. The reasons for aversion to vegetables in boys were taste and cooking method, while girls were taste and feeling between teeth. In boys there were no differences between regions of Kwangju and Chonnam but the tendency of aversion to vegetables was significantly high in girls. As for the aspects of vegetable aversion of subjects, 46.9% of respondents took up 'black & purple' in the unfavorable color of vegetables. 49.1% in 'bitterness' and 39.2% in 'greasiness' were in terms of the aversive taste of vegetables. The aversive vegetable recipes were 58.6% in 'raw & seasoned' and the unfavorable feeling of vegetables were 53.1% in 'squashiness'. There were differences between regions of Kwangju and Chonnam with boys in color and cooking method in girls. Results from the survey on their preferences for vegetable recipes showed that leafy vegetables like crown daisy (raw/slightly seasoned) and pak choi (broth/pot stew) fell to the most aversive category, while bean sprouts (broth/pot stew) were chosen as the most favorable one. Among root vegetables bell-flowers were found to belong to the least preferred recipe, while potatoes were proven to be most preferable in terms of recipes. As for fruit vegetables and other vegetables, all respondents didn't like 'fatsia shoots' vegetable and it's cooking method and they preferred 'green pumpkins (broth/pot stew)'. In respect of mushrooms, enoki mushroom (broth/pot stew) was found most preferred and had high tendency of preferences in boys and girls in Kwangju compared with Chonnam region. The study results indicated that respondents did not show big differences in factors influencing them to be averse to vegetables and their preferences for vegetable recipes depending on regions. In order to have high preference and intake in children's diets, it needs to study in reform of menu about using namul or vegetables mixed with meats and fruits that children preferred or applying roasted and fried other less than namul.

• Journal of the Korean Statistical Society
• /
• 제5권2호
• /
• pp.143-158
• /
• 1976

The purpose of this article is, first, to argue that the fertility cannot be reduced rapidly through widerspread diffusion of contraceptive practices which has been the main drive of the national policy in population control, because there involves the inescapable externalites in procreation, second, family sizes tend to be larger because of the financial externalities arising from government subsidies to families with children, and finally, the decreasing relative risk aversion of households with wealth may induce the poor to have large family sizes.

• 한국산학기술학회논문지
• /
• 제21권12호
• /
• pp.469-474
• /
• 2020

본 연구는 기존의 연구가 설명하지 못하는 저소득계층의 낮은 수요, 위험회피성향이 높을수록 낮은 수요를 보이는 점과 같은 소액보험의 특성을 건강보험에 관한 이론모형을 바탕으로 설명하고 있다. 특히 이러한 특성은 소득이 낮을 수록, 위험회피성향이 높을수록 보험 수요가 높다는 기존의 보험 이론과 배치되는 측면이 존재한다. 본 연구는 기존 1기간 모형에 비해 본 연구는 2기간 모형을 가정하고 있다. 그 결과 첫째, 기존 1기간 모형 하에서와 달리 소득의 감소가 언제나 질병 예방의 노력을 감소시킨다는 것을 보이고 있다. 둘째, 계리적으로 공정한 보험료 하에서 개인이 전부보험을 선택한다는 기존 연구결과와는 달리 소득이 낮은 경우 보험 수요가 낮아질 수 있다는 것을 보이고 있다. 셋째, 본 연구는 미래에 대한 전망이 개선될수록 보험 수요가 낮아질 수 있으며, 넷째, 위험회피성향이 증가할수록 보험수요가 증가해야 한다는 기존 연구결과와는 달리, 보험자에 대한 신뢰 부족 및 파산 우려가 큰 경우 위험회피성향이 증가할수록 보험수요가 오히려 낮아질 수 있다는 것을 이론적으로 증명하고 있다.

• 자원ㆍ환경경제연구
• /
• 제27권2호
• /
• pp.363-397
• /
• 2018

We study the impact of loss-aversion and the threat of critical damages from insufficient pollutant abatement, which we jointly call threshold concerns, on the outcome of international environmental agreements. We aim to understand whether concerns for a critical level of damages induce cooperation among countries faced with the well-known free-riding problem, and yield sufficient emission reductions to avoid exceeding the threshold. Specifically, we focus on loss-averse countries negotiating under the threat of either high or low environmental damages. Under symmetry, when countries display identical degrees of threshold concern, we show that such beliefs have a positive effect on reducing the emission levels of both signatories to the treaty and non-signatories, leading to weakly larger coalitions of signatories than in the absence of reference dependence. We then introduce asymmetry, by allowing countries to differ in the degree of concern about the damages. We show that stable coalitions are mostly formed by the countries with higher threshold concerns. When enough countries exhibit standard preferences, the coalition size may diminish, regardless of the degree of concern by the others.

• 한국항해항만학회지
• /
• 제31권10호
• /
• pp.819-824
• /
• 2007

이 연구는 해상교통안전시설에 관한 운영효과를 분석한다. 해상교통안전시설의 운영효과는 크게 안전편익, 수송편익 그리고 기타편익으로 나눌 수 있다. 안전편익은 해상교통안전시설을 설치 및 운영함으로써 해양사고가 감소됨에 따른 해상교통의 손실회피비용으로 산출된다. 이를 위하여 각 해당 시설에 대한 해양사고 감소율을 산정하고, 손실회피비용의 세부 모델을 구축한다. 또한 이에 대한 각 변수를 정의하고 계산식을 제시한다. 이 모델을 목포청의 항로표지집약관리시스템에 적용하여 안전편익을 산출하였다.

• 한국유기농업학회지
• /
• 제32권1호
• /
• pp.25-37
• /
• 2024

This study is to apply behavioral economics-an economics that studies actual human behavior based on cognitive psychology-to the farming decision-making process of onion and garlic farmers. Of behavioral economic theories, dual system theory and prospect theory (value function), heuristic and bias were surveyed and examined in the field. The reference point of farmers was farming experience of the previous year, and so they showed reference dependence and anchoring heuristic, not rational thinking on production cost plan. And they showed status quo bias that cultivated continuously the previous year or the present crop. This status quo bias is related to loss aversion propensity. Farmers did not usually change cultivating crops, in other words, they showed diminishing sensitivity-insensitive to those that the more revenue or loss was increased. This diminishing sensitivity is related to loss aversion propensity and status quo bias. Also, farmers had representativeness heuristic because they regarded auction price of Garakdong wholesale market as the standard price level despite various prices by production region. And farmers had the affect heuristic that they depended on producers' organization data more than the state-run research institute ones about cultivation intentions and actual situations.

• 한국경영과학회:학술대회논문집
• /
• 한국경영과학회 1987년도 추계학술발표회 발표논문초록집; 중소기업협동조합중앙회, 서울; 31 Oct. 1987
• /
• pp.20-20
• /
• 1987