• 산업경영시스템학회지
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• 제24권68호
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• pp.67-84
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• 2001

Hotel industry publications demonstrate a keen interest in the revenue enhancing potential of yield management, but there has been little research on the extent to which this pricing technique is actually utilized by hotel general managers. This research tests the proposition that there are eight basic elements of yield management in hotels. The degree to which yield management is practiced is indicated by the extent that these eight elements are in place. It was found that there is a positive relationship between a managers perception of his or her own yield management utilization and the extent to which the eight elements are used. It was also found, however, that while 77% of hotels claim to be utilizing yield management techniques extensively, very few are using all of the basic elements in their efforts to maximize revenue.

• 대한가정학회지
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• 제42권3호
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• pp.51-64
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• 2004

The purpose of this study was to compare shopping orientations and purchase criteria according to the occupational status; professionals, non-professionals, and homemakers among female consumers. Subjects were selected from mailing lists through a random sampling technique in the United States. Collection of the research data was made using an adaptation of the Total Design Method for implementing mail surveys. ANOVA, Regression, and Duncan Test were used to conduct the data analysis on 254 out of 1000 questionnaires. The three job status showed significant differences in 5 shopping orientations(sex role oriented, fashion conscious, credit oriented, catalog oriented, and value oriented). Even after controlling the effect of income and education level, significant differences were noticed in 4 shopping orientations, the exception being value conscious. Brand, price, and country of origin among the job status groups also showed significant differences in results for purchase criteria.

• 국제학술발표논문집
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• The 2th International Conference on Construction Engineering and Project Management
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• pp.106-118
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• 2007

Little attention has been focussed on a precise definition and evaluation mechanism for project management risk specifically related to contractors. When bidding, contractors traditionally price risks using unsystematic approaches. The high business failure rate our industry records may indicate that the current unsystematic mechanisms contractors use for building up contingencies may be inadequate. The reluctance of some contractors to include a price for risk in their tenders when bidding for work competitively may also not be a useful approach. Here, instead, we first define the meaning of contractor contingency, and then we develop a facile quantitative technique that contractors can use to estimate a price for project risk. This model will help contractors analyse their exposure to project risks; and also help them express the risk in monetary terms for management action. When bidding for work, they can decide how to allocate contingencies strategically in a way that balances risk and reward.

• Journal of applied mathematics & informatics
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• 제41권1호
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• pp.33-50
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• 2023

Foreign exchange options are derivative financial instruments that can exchange one currency for another at a prescribed exchange rate on a specified date. In this study, we examine the analytic formulas for vulnerable foreign exchange options based on multi-scale stochastic volatility driven by two diffusion processes: a fast mean-reverting process and a slow mean-reverting process. In particular, we take advantage of the asymptotic analysis and the technique of the Mellin transform on the partial differential equation (PDE) with respect to the option price, to derive approximated prices that are combined with a leading order price and two correction term prices. To verify the price accuracy of the approximated solutions, we utilize the Monte Carlo method. Furthermore, in the numerical experiments, we investigate the behaviors of the vulnerable foreign exchange options prices in terms of model parameters and the sensitivities of the stochastic volatility factors to the option price.

• 한국산학기술학회논문지
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• 제22권4호
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• pp.228-234
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• 2021

부동산의 시장 참여자들에게 부동산 가격에 대한 방향성을 예측하는 것은 의사결정에 있어서 매우 중요하다. 이를 위해 주로 회귀분석, ARIMA, VAR 등의 방법론을 사용하는데 이는 불특정 변수에 의해서 변동하는 자산의 가치를 예측하는데 한계점을 갖는다. 때문에 본 연구에서는 이를 보완하기 위해서 인공신경망 기법을 이용해 부동산 시장에서 유동성이 풍부한 서울 아파트 가격 추이를 예측하고자 한다. 인공신경망 학습을 위해서 총 12개의 거시 및 미시적 변수를 나눠 학습 모형을 설계하는데 거시적 요인은 CASE1, 미시적 요인은 CASE2 그리고 두 요인을 조합해서 요인을 구성한 CASE3 으로 나눠서 실험한다. 그 결과 CASE1 과 CASE2 는 약 2년 동안 87.5%의 예측을 보이고 CASE3은 95.8%의 예측성과를 보인다. 본 연구는 아파트 가격에 영향을 주는 다양한 요인들을 거시적 및 미시적으로 구분하여 정의하고 미래의 아파트 가격의 방향성을 예측하는데 인공신경망 기법을 제안하고 그 실효성을 분석했다. 따라서 최근 발전하고 있는 학습 기법이 부동산 분야에 다양한 관점으로 적용되어 시장 참여자들의 효율적인 의사결정을 할 수 있기를 기대한다.

• 전자공학회논문지 IE
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• 제43권4호
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• pp.13-20
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• 2006

선진국에서는 지능형 농사 기법을 이용하여 농산물 가격을 예측하고 있다. 우리나라에서도 농산물 가격 폭등 및 급락을 막기 위해서 기초 연구를 하고 있다. 그러나 어느 누구도 농산물 가격예측을 하는 것은 불가능하다. 본 논문에서는 농산물 예측 가격을 향상하기 위해서 전처리로 신경망을 사용하였다. 또한 후처리로써 예기치 못한 상황을 실시간으로 예측할 수 있는 퍼지알고리즘을 개발하였다. 시뮬레이션결과 제안된 농산물 가격 예측이 퍼지 규칙을 사용 하지 않은 기존 수요예측 시스템보다 가격오차를 줄일 수 있음을 입증했다.

• 디지털산업정보학회논문지
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• 제16권2호
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• pp.117-128
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• 2020

The aim of this study was to examine price sensitivity of industrial products purchased via a group buying system and how industrial products for a group buying system differ from general industrial products, and then identify the major factors in selecting products and the important determinants in purchasing industrial products for school foodservices. The survey was conducted with 250 dietitians (teachers) in Gyeonggi-do Province, who were using industrial products for a group buying system and general industrial products. A paired t-test showed a difference in satisfaction between industrial products for a group buying system and general industrial products by factors, while statistically significant differences were found for red pepper paste, fermented soybean paste and soy sauce in all nine satisfaction factors, including product quality, packaging state, labeling, hygiene, item diversity, specification diversity, price appropriateness and supply. Moreover, analyzing price sensitivity for industrial products for a group buying system, using the PSM method with respect to the issue of high price, showed that the respondents considered that the current unit purchase prices were high for all items investigated. This study suggests that schools would purchase more industrial products for a group buying system, when the pricing of the products are considered with the purchase intention of dietitians (teachers).

• 정보학연구
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• 제1권2호
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• pp.25-37
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• 1998

경영전략수립에 있어서 자본비용 평가는 중요한 의미를 갖는다. 이는 자본비용은 기업가치 평가 및 새로운 Project 심사에 매우 중요한 위치를 차지하고 있기 때문이다. 상장기업의 경우 자본비용은 일반적으로 자본자산가 격결정모형(capital asset pricing model : CAPM)에서 주식시장을 이용한 베타($\beta$)를 구함으로서 쉽게 구할 수 있다. 그러나 비상장기업은 주가를 이용할 수 없다. 따라서 비상장기업의 경우 주가에 가장큰 영향을 미치는 회계정보가 주가를 대신하여 자본비용 계산시 유용한 베타를 구할 수 있는지에 대한 많은 연구가 계속하여 이루어지고 있다. 이러한 사실에 비추어 본 연구는 재무정보와 시장의 체계적 위험(또는 시장베타)과 어떤 관련성이 있는가를 분석하는데 초점을 두고 있으며 특히 순수접근기법(Uure-play technique)과 회계정보에 의한 기본적접근방법(fundamental approach)을 이용하여 베타가 어떻게 추정되는지를 분석했다. 그리고 캐나다 자본시장에서 재무정보와 주가의 상호관련성을 실증 분석한 Patterson의 베타예측모형을 추가적으로 검토했다. 한편 향후 이 논문은 Patterson의 베타예측모델을 가지고 우리 나라에 적용 재무정보와 체계적위험간의 관계를 실증분석하기 위한 선행연구라는 점을 밝히고 싶다.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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• pp.576-579
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• 2007

Timber inventory is a good starting point for developing strategies to effectively manage the timberland. In the sale of timberland, pricing is mostly based on this inventory. For a small timberland, inventory by conventional ground survey could be possible. In the case of large and nationwide business transactions, swift and inexpensive inventory is worth to be considered as the conventional methods require more experienced man power, money and time. In the present study, it was aimed to identify the chronicle of timberland such as changes that has occurred owing to silvicultural activities and by other means using the historical aerial photography and satellite data. Historical aerial photos from National Aerial Photography Program (NAPP), National High Altitude Photography (NHAP), Survey Photography and Landsat satellite data were used. Orthophotos were constructed using the DOQQ and DEM from USGS. Simple photo interpretation technique was employed to classify the orthophoto and satellite data. The plantation area was classified into softwood, mixed and hardwood. The timber age and the corresponding acreage details and the changes were also estimated. The result of this study could be more useful to the timberland buyers to better understand the chronicle of timberland of their interest prior to transactions.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제8권11호
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• pp.3674-3710
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• 2014

In this tutorial, we integrate the concept of cognitive radio technology into game theory and supermarket game theory to address the problem of resource allocation in multiuser multicarrier cognitive radio networks. In addition, multiuser multicarrier transmission technique is chosen as a candidate to study the resource allocation problem via game and supermarket game theory. This tutorial also includes various definitions, scenarios and examples related to (i) game theory (including both non-cooperative and cooperative games), (ii) supermarket game theory (including pricing, auction theory and oligopoly markets), and (iii) resource allocation in multicarrier techniques. Thus, interested readers can better understand the main tools that allow them to model the resource allocation problem in multicarrier networks via game and supermarket game theory. In this tutorial article, we first review the most fundamental concepts and architectures of CRNs and subsequently introduce the concepts of game theory, supermarket game theory and common solution to game models such as the Nash equilibrium and the Nash bargaining solution. Finally, a list of related studies is highlighted and compared in this tutorial.