• 대한가정학회지
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• 제46권9호
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• pp.7-19
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• 2008

This research aims to analyze rational decision behavior in different stages of purchasing for consumers buying household appliance goods and deals with differences in socio-demographic features and relevant variables among completely rational, intermediatedly rational, and irrational groups as well as variables differentiating those groups. First, one third of purchasers for Kimchi refrigerators was the rational consumer while a half of purchasers for side-by-side refrigerators and washing machines was. Second, there was no significant differences in satisfactions levels after purchase between rational and irrational groups among purchasers of side-by-side refrigerators but between completely and intermediately rational groups in the case of Kimchi refrigerators. Rational groups of consumers for Tromm washing machines rely on various places for purchase and also show the high level of intention for repurchase. Third, in studies of variables differentiating rationality in purchase behavioral patterns of consumers, rational choices turn out to prevail (1) among purchasers of married, college graduated, employers, and high income in the case of side-by-side refrigerators, (2) among buyers of male, old-aged, college graduated, non-employers, low, income, and hurrying to purchase in the case of Kimchi refrigerators, and (3) among buyers of old-aged, high income, not hurrying to purchase, and visiting numerous stores in the case of Tromm washing machines.

• 한국국방경영분석학회지
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• 제7권1호
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• pp.53-80
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• 1981

This paper explores a rational investment decision model in sequential capital allocation process under capital rationing. A method is proposed for measuring the new investment decision factor which is the flexibility that describes the future availability of invested funds. This flexibility is important in sequential decision process. Also presented is a multiobjective (MO) decision model into which flexibility is incorporated with the profit and risk factors. The effectiveness of this criterion is compared with the expected present value and the mean-semivariance criteria through a simulation model.

• Journal of Information Technology Applications and Management
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• 제23권1호
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• pp.79-96
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• 2016

As numerous security breaches on a variety of information assets such as personal information, corporate secrets, computer servers, and networks have occurred, information security has emerged as a critical social issue. However, researches on economically rational information security decision-making have been few. Such researches are especially rare in South Korea where information security is considered to be a discipline of engineers. This study aims to identify the preferred themes and methodologies of information security economics research in the field of information systems by reviewing papers published in Management Information Systems Quarterly (MISQ), Information Systems Research (ISR), European Journal of Information Systems (EJIS), Management Science (MS), and Information and Management (I&M). We hope that the results of the study will be helpful in rational managerial or policy decision-making for practitioners and suggest future research topics for researchers.

• 한국산학기술학회논문지
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• 제17권3호
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• pp.317-331
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• 2016

본 연구는 부모의 양육태도가 중학생의 합리적 진로의사결정 유형에 미치는 영향 및 자기효능감의 매개효과를 분석하고, 이를 바탕으로 2016년부터 자유학기제를 맞는 중학생들의 진로 탐색을 자원하기 위해 가정과 학교에서 공동으로 적용할 수 있는 프로그램을 개발하기 위한 예비조사로 수행되었다. 연구 목적을 달성하기 위해 강북에 위치한 A 중학교 학생 345명에게 설문지를 배포하였으며, 불성실응답을 제외한 335부를 SPSS v.22을 활용하여 분석하였다. 분석 결과는 다음과 같다. 첫째 인구사회학적 분석에서 부모의 양육태도는 종교와 수입 집단 간 차이가 없는 것으로 나타났다. 둘째, 부모의 양육태도 중 민주적 양육태도가 중학생 자녀의 합리적 진로의사결정 유형에 가장 큰 영향을 발휘했으며 익애적 양육태도는 중학생 자녀의 합리적 진로의사결정 유형에 부분적으로 영향을 미쳤다, 하지만 권위주의적 양육태도는 영향을 미치지 못하는 것으로 나타났다. 셋째, 부모의 양육태도가 중학생 자녀의 합리적 진로의사결정 유형에 미치는 영향에서 자기효능감은 민주적 양육태도에서만 매개효과를 갖는 것으로 나타났다. 이러한 연구 결과는 중학생 자녀의 합리적 의사결정 유형을 긍정적으로 변화시키기 위해서는 부모교육과 함께 자기효능감 이외의 변인이 개입되어야 할 필요성을 발견했다는 점에서 그 의의를 찾을 수 있다.

• 인지과학
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• 제27권1호
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• pp.61-99
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• 2016

본 논문은 이성적 정보와 감성적 정보에 대해 어떠한 정보 유형이 광고소구의 관점에서 더 효과적인가를 반응시간과 재인 측면에서 검증함과 동시에, 정보의 유형별로 뇌 기능 상의 관계를 fMRI를 이용하여 분석하여 정보유형별 인지처리 상의 차이를 설명하고자 하였다. 이를 위해 두 가지 실험을 수행하였는데, 첫 번째 실험은 두 종류의 자극 유형에 해당하는 광고카피 - 이성에 소구하는 자극과 감성에 소구하는 자극 - 에 대해 어떠한 유형에 해당하는지를 피실험자가 결정하게 하는 과제를 수행하게 하였으며, 자극의 제시로부터 소구 형태를 판단하기까지 소요되는 반응시간의 측정을 통해 각 자극 유형별 효과를 측정하고, 이 때 활성화되는 뇌 영역을 분석하여 인지처리 상의 기능을 비교하였다. 두번째 실험은 자극 유형별로 재인효과를 측정하고, 이 때 활성화되는 뇌 기능 영역 간의 차이를 분석하여 재인 시의 인지처리 상의 기능을 비교하였다. 이러한 실험연구를 통한 결과를 요약하면 다음과 같다. 첫째, 반응시간의 측면에서 감성적 자극에 대한 반응시간이 이성적 자극에 대한 반응시간보다 빠르게 이루어 졌고, 재인 측면에서는 이성적 자극에 대한 기억의 효과가 감성적 자극에 대한 기억보다 높게 나타났다. 둘째, fMRI를 이용한 뇌 기능상의 특징을 보면 이성적 자극의 경우 상대적으로 활성화의 수준이 높은 뇌 영역들은 행동 조정 혹은 작업 기억과 연계된 곳이었다. 반면, 감성적 자극의 경우 상대적으로 활성화의 수준이 높은 뇌 영역은 언어처리와 연계된 곳이었다. 본 연구를 통하여 이성적 자극과 감성적 자극의 소구 효과가 다름을 확인할 수 있었고, 각 소구 형태별로 뇌 기능상의 인지적 차이를 확인할 수 있었다.

• 한국IT서비스학회지
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• 제11권3호
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• pp.205-225
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• 2012

The purpose of this study is to examine negative IT performances produced by irrational fashion-mimic IT investments in firms. Since most studies have been carried out on the assumption of rational investment decisions, many of them have revealed positive investment process and performances in firms. However, fashion-mimic investments to follow the paths of market leaders rather than rational investment decisions have been of frequent occurrence in many firms. This study divided types of mimic investments into subgroups where one subgroup has fashion-mimic properties and the other subgroup retains rational-mimic properties. We compared differences in performance of these subgroups to investigate effects of irrational investments in IT projects. The results indicated that there are differences in performance between fashion-mimic and rational-mimic investments. Additional analysis also revealed differences in performance at the presence of CEO control in the case of fashion-mimic investment subgroup.

• 한국터널공학회:학술대회논문집
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• 한국터널공학회 2005년도 학술발표회 논문집
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• pp.262-269
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• 2005

The priority order about a rational repair and reinforcement is generally decided by subjective decision of engineer. An appearance investigation by tunnel scanner that is widely used in foreign nation was carried out to decide about a rational repair and reinforcement through systematic and objective analysis in box and NATM tunnel. We have decided on the order of priority of an rational repair and reinforcement through the crack density analysis by span, distance and location with the result of tunnel scanner.

• 한국경영과학회지
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• 제7권1호
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• pp.51-57
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• 1982

During the course of history, more and more reliable birth control methods have become available. Hence, to a certain degree, the possibility of avoiding any or additional children, and of spacing the family building process has arisen. The advancement of six predetermination technology, whereby couples can influence the sex of their children, gives couples, another decision variable. Assuming a rational acting couple, we present a general decision-theoretic model which describes the family building process and its optimization through maximizing the expected utility concerning the spacing, ordering, sex, and number of their children.

• 가정과삶의질연구
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• 제5권2호
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• pp.109-125
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• 1987

Previous studies show that working wives in the market contribute to the family economy that affects the family member's behaviors as consumers. Accordingly, the consumer behavior among working wives would be differ form that among nonworking wives. As the number of working wives in the market is increasing, this study focuses on the estimation of the degree of rationality in purchasing decision making among wives in relation to their working status. Therefore, this study attempts to construct an rationality index of a purchasing decision making both at a high and a low involvement situation by working and nonworking wives, and analyzes the differences in the results of the two groups. This study also examines how the rationality indices vary with the selected socioeconomic variables. The data are obtained from self-administered questionnaires from a sample of 217 working and 191 nonworking wives at Seoul and Seongnam in 1986. The statistical methods used in this study are Factor Analysis, Multiple Regression, and Analysis of Variances. The major findings of this study are as follows; 1) The mean value of the rationality index among nonworking wives is higher than that among working wives. Under a high involvement situation, the mean value of the rationality index among working wives is negative. Therefore, it is likely that nonworking wives make purchasing decisions more rationally than working wives. 2) The higher the degree of wive's education, the more rational the purchasing decision making. Under a low involvement situation, the higher the monthly family income, the more rational the purchasing decision making . under the same situation, the shorter the duration of marriage , the more rational the purchasing decision making. 3) Under a low involvement situation, the rationality indices of working wives vary with their occupations. The rationality indices among those in selling and service jobs are lower than those among those in professional jobs. 4) The impact of the selected socio-economic variables on the degree of the rationality in purchasing decision making differs depending on whether the wife is working or not. Under a low involvement situation, the positive impact of the monthly family income on the rationality in purchasing decision making is stronger among nonworking wives than among working wives. Under the same situation, the negative impact of the duration of marriage on the rationality is stronger among nonworking wives than among working wives.

• 한국환경복원기술학회지
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• 제14권3호
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• pp.101-113
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• 2011

The purpose of this study are to develop a SDSS (Spatial Decision Support System) that can incorporate diverse opinions of stakeholders related the designation of protected areas (PA), and to employ the model for the readjustment of the boundary line of the Jirisan National Park of Korea. The SDSS would lead to more rational and less controversial decision-making during the expansion or removal of PA in Korea. Research methods are as follows. Firstly, to select evaluation criteria for SDSS for PA designation by using expert interview and literature survey. Secondly, to measure their preferences on the designation of additional PA or the removal of a part of PA based on the opinions of various stakeholders such as local residents, environmental groups, or public officials. Thirdly, to produce conservation priority maps based on a multi-criteria decision making technique. The SDSS would be used to rational decision making for the expansion of PA or the release of a certain part of PA by reflecting diverse preferences on biodiversity conservation and economic interest of residents. The visualization of conservation priority maps would also increase the efficiency of such decision making processes. The evaluation criteria for the expansion of PA for biodiversity conservation includes vegetation conservation value, wildlife conservation value, and the habitats of key species. The evaluation criteria for the removal of PA includes the proximity to roads and the boundary of PA, land use types, and conservation zoning of the PA. Preference weights are based on data collected from the Jirisan National Park. Both the conservation priority and removal priority maps are based on land parcels so that property rights of all parcels would be correctly represented.