• 수산경영론집
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• 제44권3호
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• pp.103-109
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• 2013

This paper analyzed that the economic effectiveness of the artificial fish reef project in the Tae-an Marine Ranching. Benefit-cost(B/C) model used to indicate the effects of economic valuation. B/C model is based on the sub-models which are Benefit Cost Ratio(BCR), Net Present Value(NPV) and Internal Ration of Return(IRR). First, the Sum of Incremental Benefit and Cost for total vessel by year in Artificial Fish Reef Area(AFRA) estimated 2,381 million won. And then, using 5.5% discounting rates and the survey data, the sub-models showed economically feasible in the all of analysis and analyzed the results as follows. BCR is 2.66, NPV is 28,014million won, and IRR is 22.78%. In conclusion, these results indicated that the artificial fish reef project in Tae-an Marine Ranching would be increase the income of fishermen as well as fish biomass.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 2004년도 춘계공동학술대회 논문집
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• pp.742-745
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• 2004

Most of options pricing theory including Black and Scholes continuous model and Cox, Ross, and Rubinstein(CRR)'s binomial lattice model were developed based on the notion that continually revised risk-free hedges involving options and stock should earn the risk-free interest rate. This notion is valid with the assumption that the investor's attitude toward risk is neutral. In reality, this assumption may be frequently violated. Therefore, Hodder, Mello, and Sick proposed the way to value real options using the risk-adjusted interest rate. However, they did not show how to derive the mathematical expression for it. In this paper, we will clearly present how to obtain the mathematical expression for the risk-adjusted interest rate for real options and demonstrate two numerical examples to show its applicability.

• 무역상무연구
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• 제43권
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• pp.143-168
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• 2009

International Factoring transaction in Korea is different from that of financially advanced countries in terms of legal system and commercial and financial practices. As for the domestic factoring, Korean factors are only involved in advances often on a with recourse basis. With regard to the international factoring, Korean factors do not accommodate whole account receivables from clients (suppliers) but handle on a selective basis. Among Korean banks, KEXIM (Export and Import Bank of Korea) is sole factor for international transactions. Currently KEXIM and several foreign banks handle factoring provide factoring services with limitation to invoice discounting which is largely extended to large corporate names. Therefore this is far different from factoring in Europe and Americas designed for small exporters with non recourse advances. In respect of legal environment, receivable assignment is subject to debtor' acknowledge or approval of such assignment according to Civil Law Act. To remove the legal obstacles, Korean government have prepared new law which allows factor's own notification of assignment (and thereby reimbursement right) to debtor with some evidences.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1990년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 26-27 Oct. 1990
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• pp.1234-1239
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• 1990

In this paper, we propose a new type of decentralized learning automata for the control finite state Markov chains with unknown transition probabilities and rewards. In our scheme a .betha.-type learning automaton is associated with each state in which two or more actions(desisions) are available. In this decentralized learning automata system, each learning automaton operates, requiring only local information, to improve its performance under local environment. From simulation results, it is shown that the decentralized learning automata will converge to the optimal policy that produces the most highly total expected reward with discounting in all initiall states.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2004년도 추계학술대회 논문집
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• pp.1566-1574
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• 2004

This study tried to find out alternatives adjusting basic fare using customer survey. But it merely verified that train fare decision is made by government's role and market status. Also, it has a limitation deciding resonable fare of KTX that average cost and marginal cost calculation is impossible because Korean National Railroad does not follow 'Activity Based Costing'. It is rational fare decision that performing survey to railroad experts and general customers, and compare two results. Summarizing results of this study, 1. The hypothesis 'Experts' perceived fare level of KTX is higher than that of general customer. 'is carried. It suggests that following experts' opinion with general customer's is very rational method to decide fare level. 2. The hypothesis 'Experts expect lower level of fare discount rate than general customer.' is carried. 3. It is hard to decide priority among many kinds of discount for difference of two group's preference. However, following recent research project is maximized by discounting fare 30$\%$ on 40$\%$ of total passenger and expand number of discount kinds step by step are desirable.

• 간호행정학회지
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• 제12권2호
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• pp.204-212
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• 2006

Purpose: The aim of this study was to analyze the gap between the nurse's expectation and perception of internal marketing activities. Methods: The participants of this study were 521 nurses working in four general hospitals. The data were collected by self-reporting questionnaires. They were analyzed using descriptive statistics and paired-t test. Results: First, the mean of the nurse's expectation of internal marketing activities was 3.83, and perception was 2.54, showing a significant difference. Second, in all of the five subcategories of internal marketing activities, there were also statistically significant differences. Regarding the vacation system, the expectation score was highest, and support of academic education programs in education and training, payed-leaves during vacation, discounting of medical fees in employee welfare, distress management and two-way intercommunication, and allowances in reward were followed. Conclusion: These results will be used to develop focused internal marketing strategies to enhance the nurses' motivation.

• International journal of advanced smart convergence
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• 제7권4호
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• pp.185-196
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• 2018

Based on World Health Organization (WHO) children and adults have a problem with their oral health, such as Dental cavities and periodontal disease. It is not easy to obtain the high convince level of result of the dental and periodontal diseases. Because each of them have different degrees of uncertainty and there have several discounting factors (error rates) in different of survey. To solve this problem we propose the Dezert-Smarandache Theory (DSmT) for efficient combination of uncertain, imprecise and highly conflicting sources of information. Moreover, we apply the SEFP as a context reasoning. Finally, we make the simulation by using 12 surveys and compare Propotional Conflict Redistribution 5 (PCR5) and Dempster-Shafer Theory (DST) to show the belief or probability for the low, a heavy, high and ultra-high risk situation.

• Asia Marketing Journal
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• 제26권1호
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• pp.23-30
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• 2024

Firms often engage in manipulating online reviews as a promotional activity to influence consumers' evaluation on their products. With the prevalence of the promotional activities, consumers may notice and discount the reviews generated by the promotional activities. Discounting the firm-generating reviews may cause systematic measurement errors in the valence variable and lead to a negative bias when estimating the effect of consumers' organic reviews on demand. To correct the bias, this study proposes including product-specific bias-correction terms representing the proportion of extreme reviews in analysis. For illustration, the proposed method is applied to a demand model for data of movies released in South Korea. The results confirm a negative bias in the estimate of the valence sensitivity of demand. The negative bias potentially leads to an underestimation of the magnitude of the contagion effect through social interactions, a key component of evaluating the value of a satisfied consumer.

• 감성과학
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• 제20권1호
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• pp.83-94
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• 2017

본 연구에서는 상품과 배경음악이 사람들의 충동적인 의사결정에 미치는 영향을 지연 할인의 쌍곡선 함수를 이용하여 알아보았다. 구체적으로 상품과 배경음악에 따라 유의미한 이원 상호 작용이 존재했다. 명품 조건에서는 모차르트의 피아노 콘체르토 5번 장조 음악을 들었을 때, 20번 단조 음악을 들었을 때보다 충동성이 유의미하게 높았다. 하지만 실용 상품에 노출된 참가자들에게선 음악의 종류에 따라 충동성의 차이는 유의미하지 않았다. 추가 연구를 통해 음악을 더 세분화하여 빠르기를 조절하여 그 영향을 알아보았으며 동시에 정서가 위와 같은 결과를 매개 했는지 알아보았다. 결과적으로 정서의 매개효과와 빠르기의 주효과 모두 유의미하지 않았지만, 빠르기와 장단조 조건 간의 유의미한 이원 상호작용이 나타났다. 구체적으로 알레그로(allegro) 빠르기에서는 장조음악일 때가 단조 조건일 때보다 충동성이 높은 경향성이 나타났으며 안단테(andante) 빠르기에서는 장조 음악을 들었을 때가 단조 음악을 들었을 때보다 유의미하게 충동성이 낮게 나타났다. 우울한 정서를 예측 변수로 하고 미래 시간 길이 지각을 매개 변인으로 하여 추가 연구를 진행한 결과, 시간 길이 지각은 우울한 정서가 충동성에 미치는 영향을 부분 매개함을 알 수 있었다.

• 한국심리학회지ㆍ건강
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• 제19권4호
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• pp.929-955
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• 2014

본 연구에서는 대학에서 개설된 자기관리 수업이 첫째, 수강생들의 목표행동의 개선과 충동성 감소에 효과적인지 확인하고, 둘째, 목표로 하지 않았던 행동에도 긍정적인 영향을 미치는지(일반화)를 목표행동 유형(운동, 식습관, 학습, 긴장습관, 기타 행동)에 따라 살펴보았다. 마지막으로 이러한 변화가 충동성의 감소로 인해 발생했는지를 조사하였다. 본 연구의 참가자는 한 대학교에서 자기관리 수업을 수강하면서 행동수정 프로젝트를 수행한 128명이었다. 수강생들은 학기 초와 학기 말에 자기보고식 충동성 척도와 충동성 측정 행동과제인 지연 디스카운팅 과제(delay discounting task), 그리고 음주, 운동, 식습관, 학습, 시간관리 분야에서의 자기통제력을 측정하는 일반적 자기통제행동 척도에 응답하였다. 그리고 수강생들은 한 학기 동안 목표행동을 정하고 행동수정 프로젝트를 통해 자신의 행동 변화를 직접 관찰하고 기록하였다. 연구 결과, 수강생의 63%가 자기관리 수업을 통해 성공적으로 목표행동을 달성하였다. 그리고 목표행동에 따라 차이는 있었으나 목표행동을 달성한 집단은 다양한 분야의 자기통제행동의 향상과 충동성의 유의한 감소를 보고하였다. 다음으로, 적어도 운동과 식습관 집단에서의 충동성의 감소는 자기통제의 일반화를 유의하게 예측하였다. 이러한 결과는 충동성의 향상이 다양한 자기통제행동의 개선으로 이어짐을 보여주며, 자기통제력의 일반화를 시사한다. 이와 같은 의의와 더불어 한계점 및 후속 연구를 위한 제언을 논의하였다.