• Title/Summary/Keyword: pricing model

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A Study on the Estimation Method for the Equipment Operating Costs in the Data Center Outsourcing Environment (데이터 센터 Outsourcing에 있어서 기기 운영비요의 산정 방법에 관한 연구)

  • Hwang, Kyung-Tae;Kwon, Oh-Hun
    • The Transactions of the Korea Information Processing Society
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    • v.4 no.6
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    • pp.1401-1417
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    • 1997
  • The major objective of this study is to propose an estimation method for the equipment operating cost in the data center outsourcing situation. To accomplish the objective, the fundamental concepts about the outsourcing pricing is first established by analyzing the previous research in this area. Then an actual case of data center outsourcing is evaluated. Based on the conceptual model and the actual case, a new method is proposed. Validity of the proposed method is verified by the quantitative comparison with the previous method. Reasonability and usefulness of the method were evaluated through the customer survey.

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What Drives the Stock Market Comovements between Korea and China, Japan and the U.S.?

  • Lee, Jinsoo;Yu, Bok-Keun
    • KDI Journal of Economic Policy
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    • v.40 no.1
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    • pp.45-66
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    • 2018
  • This paper measures the extent of comovements in stock returns between Korea and three major countries (China, Japan and the U.S.) using industry-level data for Korea from 2003 to 2016 in the spirit of the international capital asset pricing model. It also examines what drives the comovements between Korea and the three countries. We find that the comovements of Korean stock returns with those of the U.S. and Japan became smaller after the global financial crisis. In contrast, the comovement in stock returns between Korea and China became larger after the crisis. After an additional analysis, we conclude that trade linkage is the main driver of the comovements between Korea and the three countries.

Korean Stock Price Index and Macroeconomic Forces (우리나라 증권시장과 거시경제변수 : ANN와 VECM의 설명력 비교)

  • Jung, Sung-Chang;Lee, Timothy H.
    • The Korean Journal of Financial Management
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    • v.19 no.2
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    • pp.211-231
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    • 2002
  • 본 연구의 목적은 VECM(Vector Error Correction Model)과 인공지능모형(Artificial Neural Networks)을 이용하여 우리나라 증권시장과 거시경제 변수들과의 장기적 관계에 대한 설명력을 비교해보고자 함에 있다. VECM이 APT(Arbitrage Pricing Theory)에 기초를 둔 선형동학모형이라고 한다면, 인공지능모형은 비모수적 비선형모형이라는 점에서, 두 방법론의 분석결과를 직접 비판하는 것은 의미있는 연구라고 할 수 있다. 인공지능모형을 주로 활용하는 선행연구들에 의하면, 증권시장은 시장의 특이패턴들로 인해 계량경제학적 접근인 선형 모형보다는 인공지능모형을 통해 증권시장의 움직임을 설명하고 예측하는 것이 더 바람직할 수도 있다는 것이다. 따라서, 본 연구에서는 VECM분석에서 자료의 안정성을 검증하고, 공적분 백터를 발견한 이후, 장기적 균형관계의 실증적 분석을 하였다. 그리고, 인공지능모형에서는 delta rule과 Sigmoid 함수를 이용한 GRNN(General Regression Neural Net)과 Back-Propagation등의 방법들을 활용하였다. 이러한 분석결과, Back-Propagation 모형이 다른 모든 모형들보다도 더 우수한 설명력을 보여주고 있었다. 이러한 결과들은 인공지능모형이 동태적인 선형 모형보다도 더 우수한 설명력을 제공할 수 있는 가능성을 보여주고 있었다.

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DOMAIN OF INFLUENCE OF LOCAL VOLATILITY FUNCTION ON THE SOLUTIONS OF THE GENERAL BLACK-SCHOLES EQUATION

  • Kim, Hyundong;Kim, Sangkwon;Han, Hyunsoo;Jang, Hanbyeol;Lee, Chaeyoung;Kim, Junseok
    • The Pure and Applied Mathematics
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    • v.27 no.1
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    • pp.43-50
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    • 2020
  • We investigate the domain of influence of the local volatility function on the solutions of the general Black-Scholes model. First, we generate the sample paths of underlying asset using the Monte Carlo simulation. Next, we define the inner and outer domains to find the effective volatility region. To confirm the effect of the inner domain, we use the root mean square error for the European call option prices, and then change the values of volatility in the proposed domain. The computational experiments confirm that there is an effective region which dominates the option pricing.

OPTIMAL PORTFOLIO SELECTION UNDER STOCHASTIC VOLATILITY AND STOCHASTIC INTEREST RATES

  • KIM, MI-HYUN;KIM, JEONG-HOON;YOON, JI-HUN
    • Journal of the Korean Society for Industrial and Applied Mathematics
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    • v.19 no.4
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    • pp.417-428
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    • 2015
  • Although, in general, the random fluctuation of interest rates gives a limited impact on portfolio optimization, their stochastic nature may exert a significant influence on the process of selecting the proportions of various assets to be held in a given portfolio when the stochastic volatility of risky assets is considered. The stochastic volatility covers a variety of known models to fit in with diverse economic environments. In this paper, an optimal strategy for portfolio selection as well as the smoothness properties of the relevant value function are studied with the dynamic programming method under a market model of both stochastic volatility and stochastic interest rates.

The Suggestion of the Pricing and Profit Making Model of the open-sourced Digital Content, based on the Two-sided Market Theory (디지털 콘텐츠 가격책정 및 수익창출 방안 제안 - 콘텐츠의 오픈소스화 및 양면시장이론 적용 -)

  • Yim, Sun-Jip;Shin, Min-Soo
    • 한국IT서비스학회:학술대회논문집
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    • 2009.05a
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    • pp.597-601
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    • 2009
  • 디지털 콘텐츠(이하 DC) 시장중 대표적으로 출판, 음악, 영화 부분은 불법복제유통 등 시장 비활성화 요인을 지니고 있다. DC 수익배분 선행연구나 양면시장이론 등은 전체 시장규모를 키우는 방안제시가 미약한 편이다. 이를 타파하기 위해 산업계는 가격인하 및 신규 서비스 방식을 도입중이다. 이를 반영하여 본고에서는 양면시장이론에 근거한 광고미디어형 모형의 확산을 제안한다. 거래 중계형 모형에서는 콘텐츠 오픈소스화 및 One-Source Multi-Use 활성화, 디지털화로 인한 비용절감분만큼 가격인하, 렌털 소유가격 차별화 등을 제안하고 있다.

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Asymmetric Regulation of Mobile Access Charges and Consumer Welfare with Price Regulation

  • Lee, Jong-Yong;Lee, Duk-Hee;Jung, Choong-Young
    • ETRI Journal
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    • v.32 no.3
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    • pp.447-456
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    • 2010
  • Asymmetric regulation as applied to mobile termination rates refers to regulatory arrangements in which different mobile operators charge different termination rates, even though the services provided are essentially identical. The asymmetric regulation has been frequently used as a regulatory tool to support new entrants to a mobile market. This paper examines the economic effects of asymmetric regulation of mobile termination rates using a theoretical model and its simulation. The result shows that when there is no noticeable difference in brand loyalty between mobile operators with the high degree of substitutability between services provided by mobile operators, and the costs of new entrants are low, a reduction in the asymmetry of mobile access prices results in an enhancement of consumer welfare. These findings provide positive evidence for the argument that in certain situations asymmetric pricing of mobile access services may be counterproductive for consumer welfare.

A Nash Bargaining Solution of Electric Power Transactions Reflecting Transmission Pricing in the Competitive Electricity Market (송전선이용료를 반영한 전력거래의 내쉬협상게임 해법)

  • Gang, Dong-Ju;Kim, Bal-Ho
    • The Transactions of the Korean Institute of Electrical Engineers A
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    • v.51 no.7
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    • pp.311-316
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    • 2002
  • It has been a basic model for the present electric power industry that more than two generators compete, and thereby the market clearing price and the generation schedules are determined through the bid process. In order for this paradigm to be applicable to real electric power systems and markets, it is necessary to reflect many physical and economic constraints related to frequency and transmission in the dispatching schedule. The paper presents an approach to deriving a Nash bargaining solution in a competitive electricity market where multiple generators are playing with the system operator who mitigates the transmission congestion to minimize the total transaction cost. In this study, we take the effect of the line flows and the role of system operator into the Game. Finally, a case study has been demonstrated to verify the proposed cooperative game.

BARRIER OPTIONS UNDER THE MFBM WITH JUMPS : APPLICATION OF THE BDF2 METHOD

  • Choi, Heungsu;Lee, Younhee
    • Journal of the Chungcheong Mathematical Society
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    • v.33 no.1
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    • pp.165-171
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    • 2020
  • In this paper we consider a mixed fractional Brownian motion (mfBm) with jumps. The prices of European barrier options can be evaluated by solving a partial integro-differential equation (PIDE) with variable coefficients, which is derived from the mfBm with jumps. The 2-step backward differentiation formula (BDF2 method) proposed in [6] is applied with the second-order convergence rate in the time and spatial variables. Numerical simulations are carried out to observe the convergence behaviors of the BDF2 method under the mfBm with the Kou model.

부동산시장(不動産市場)의 불완전성(不完全性)과 자본자산가격결정모형(資本資産價格決定模型)

  • Kim, Ji-Su
    • The Korean Journal of Financial Management
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    • v.8 no.2
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    • pp.1-29
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    • 1991
  • 본 논문에서는 우리나라의 부동산시장(不動産市場)의 불완전성(不完全性)이 금융시장보다도 강한 현실을 반영하여 그것이 자본자산가격결정모형(資本資産價格決定模型) (the capital asset pricing model)에 미치는 영향을 분석하였다. 부동산시장의 불완전성으로서는 특히 부동산의 경우 기본적인 최저거래단위가 일반 금융자산보다도 높아 거래에 제약이 따른다는 점, 또한 최근 정부의 부동산 가격의 안정화 시책에 따라 개인의 부동산 보유한도가 엄격하게 제한되고 있으며 부동산 투자 이득에 대한 과세도 대폭 강화되고 있다는 점 등이 고려되었다. 이와같은 가정하에서 본고에서는 전통적인 자본자산가격모형을 수정 검토한 뒤, 그 모형의 틀속에서 부동산보유제한(不動産保有制限) 및 투자이득(投資利得)의 과세강화(課稅强化)같은 부동산가격 안정화 시책의 효과를 살펴보고, 그 외 자산담보대출의 담보비율 조정이 자산의 가격형성에 미치게되는 효과와 부동산 투자신탁제도의 도입효과, 부동산 기대수익률과 주식의 기대수익률의 관계 등을 검토하였다. 이러한 분석의 결과, 특히 본고에서는 현재 정부가 추진중인 불동산보유제한(不動産保有制限) 및 투자이득(投資利得)의 과세강화(課稅强化)와 같은 정책들이 경우에 따라서 부동산 가격을 안정화시키기 보다는 오히려 부동산 가격의 상승을 유발할 수도 있는 것으로 나타나 정책의 시행시 상당히 신중을 기하지 않으면 안되는 것으로 분석되었다.

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