• The Journal of the Korea Contents Association
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• v.16 no.7
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• pp.146-153
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• 2016

This work studies the equilibrium behavior of customers and optimal pricing strategies of the sever in a continuous-time M/M/1 queueing system. In this work, we consider two pricing models. The first one is called the ex-ante payment scheme where the server charges a flat price for all services, and the second one is called the ex-post payment scheme where the server charges a price that is proportional to the time a customer spends in the system. In each pricing model, the departing customer receives the reward that is inversely proportional to his/her sojourn time. The server should make the optimal pricing decisions in order to maximize its expected profit per unit time in each payment scheme. This work also investigates customer's equilibrium joining or balking behaviors under server's optimal pricing strategies. Numerical experiments are conducted to help the server best select one between two pricing models.

• Journal of Korea Technology Innovation Society
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• v.9 no.4
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• pp.740-758
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• 2006

This paper is related to the optimal pricing of Internet Backbone Services that are differentiated according to the size of the bandwidth required for applications with different quality sensitivities, Itdiscusses IBP (Internet Backbone Provider) optimal nonlinear pricing process in the presence of a congestion externality in addition to strategic behavior by users. In this scenario, the quality of service provided may reach its socially optimal level irrespective of strategic behavior by users and may be independent of the characteristics of the applications delivered over the Internet.

• The Transactions of the Korea Information Processing Society
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• v.4 no.1
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• pp.23-38
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• 1997

Based on previous research for end-users information needs, this research is to investigate DB costing method for decision-making on pricing of DB service by critical factors. The first phase of the research classifies the elements of DB product cost accounting by activities of the circulation system of information in DB service. The second phase is to develop model based on results of DB product costing in the first phase of research. The third phase of research is to present the process of DB product cost accounting by applying the model to an on-line service company. Finally, the research develops the pricing decision model to determine the priority of each factor by survey from major on-line service companies in America and Japan. It is essential to research further regarding the DB product costing and pricing methods in order to determine a proper DB service charge. The right Pricing decision in the DB service charge will contribute to the growth of the DB industry.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.130-130
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• 2015

전력부문은 전력생산 및 공급과정에서 다양한 환경피해를 유발하는 등 사회적으로 많은 비용을 야기하고 있으나, 생산원가 위주의 현재의 전력가격 책정방식은 환경비용 등의 사회적비용을 제대로 반영하고 있지 못하고 있다. 이는 최적의 발전원구성 및 사회적으로 효율적인 전력공급의 장애 요인이 되고 있다. 주요 발전원에 대한 환경적 가치를 추정하기 위하여 본 연구는 주요 발전원의 전력생산을 수력발전으로 대체하는 것에 대한 지불의사액을 추정하였다. 조건부가치평가법을 적용한 결과, 원자력발전, 석탄화력발전, 가스화력발전 대비 수력발전은 상당히 높은 환경적 가치를 지니고 있는 것으로 나타났다. 따라서, 전력의 도매거래 시 수력발전의 친환경적 가치를 반영하여 향후 적절한 가격을 보장해야 할 필요가 있다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.26 no.1
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• pp.153-161
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• 2022

This paper analyzes the economic effects when platform provider including CP contributes to broadband universal service and uses broadband bandwidth providing high quality network service. In this model, the contribution rate of broadband universal service is determined by ISP and platform provider sets its price of contents. The main results are as follows. First, the traffic usages is less than social optimum when the market of contents is monopoly. The sum of contribution fee and network usage rate must be less than marginal cost of network operation to get social optimum traffic. Second, the rate set by ISP is equal to social optimum when the market of contents is competitive. Third, when platform provider does not charge contents provided, ISP sets social optimum prices and the network usage rate for contents user is decreasing as advertisement revenue becomes larger. These results suggest that the platform provider should contribute to universal service funding to encourage the network investment of ISP.

• Journal of Korea Port Economic Association
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• v.32 no.1
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• pp.123-133
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• 2016

LNG(Liquefied Natural Gas) bunkering has become an important issue with the enforcement of environment regulations in shipping industry required by the International Maritime Organization (IMO). With increased attention on LNG bunkering, many studies that focus on safety, regulation, demand forecasting, and the feasibility of LNG fueled ships have been carried out. However, most of the existing research has not included considerations of the price of LNG bunkering and its competitiveness. This paper, therefore, suggests ways to increase price competitiveness in the LNG bunkering market in the Busan Port. This paper analyzes the LNG bunkering supply mechanism by investigating various LNG bunkering terminal business in the LNG supply market. Factors that determine LNG bunkering price and its elasticity are also identified. Market players who want to operate LNG bunkering terminals in the Busan Port should introduce a merchandising trade method that is able to exclude the "Korea premium" in order to increase price competitiveness. This paper also suggests adoptable strategies such as the use of TPS (Terminal to Ship via Pipeline) type of bunkering service and the importance of location for minimizing initial investment cost.

• The Korean Journal of Financial Management
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• v.9 no.1
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• pp.223-262
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• 1992

This paper develops a theory of the demand for insurance. The present model incorporates insurance demand time value of insurance premium, and demand for listless and risky assets simultaneously within the expected utility framework. For a special case of CARA, an insurance decision can be made separately from other portfolio decisions. However, in general, the interactions of both decisions cannot be ignored even when insurable and speculative risks are stochastically independent. In particular, the role of risky investment in hedging insurable risk is demonstrated and it is shown that this role cannot be duplicated by an insurance contract. When the investment decision is made simultaneously with the insurance decision, some of the classic theory on insurance should be modified. As an example, the authors characterize the sufficient conditions, under which the Bernoulli criteria (without and with premium loadings) hold or are violated in terms of the net gain of risky investment, the net cost of insurance, and the stochastic relationship between insurable and speculative risks. The authors interpret the results using the Rothschild and Stiglitz's (1970) notion of 'increase in riskiness'.