• Journal of the Korean Data and Information Science Society
• /
• 제18권1호
• /
• pp.237-245
• /
• 2007

Nonlinear asymmetric time series models have the growing interest in econometrics and finance. Threshold model is one of the successful asymmetric model. We consider a smooth transition ARMA model which converges a.s. to a threshold ARMA model and show that the smooth transition ARMA model admits a stationary measure, provided a suitable condition on the coefficients of the autoregressive parts of the different regimes is satisfied. Stationarity of a smooth transition GARCH model is also obtained.

• 지능정보연구
• /
• 제17권4호
• /
• pp.255-277
• /
• 2011

PSS(Product Service System) 시스템은 제품과 서비스가 하나로 통합되어 고객에게 차별화된 가치를 제공하고, 기업이 경쟁력을 가지고 지속적인 성장을 할 수 있게 지원하는 시스템이다. 본 논문에서는 PSS 시스템으로 성공한 Amazon의 Kindle과 Apple의 iPod, 실패한 Microsoft의 Zune과 Sony의 e-book reader를 채택하여 중다 사례연구 방법론을 통해 성공요인과 실패요인을 도출하고자 한다. 이를 위하여, 사례 분석을 통해 가설을 도출하고, 연관 문헌연구와의 비교 및 분석을 통하여 PSS 시스템에서 상업적으로 성공하기 위한 전략적 시사점을 제시하였다.

• 한국정보통신학회:학술대회논문집
• /
• 한국정보통신학회 2015년도 추계학술대회
• /
• pp.746-749
• /
• 2015

본 연구의 목적은 기업의 성과와 경쟁력을 우위를 확보하고 성공적인 시장진입을 위한 첫 번째 단계로 비즈니스 모델에 대한 정립이 중요하다. 비즈니스 모델은 기존의 이론들에서도 제시하고 있듯이 어느 방향으로 제시된 프레임 워크나 정형화된 내용이 없다. 하지만 그들이 제안하고 있는 내용은 궁극적으로 가치의 제안을 중점으로 제안하고 있다. 그 가치는 다양한 측면에서 다양한 요소들로 나타날 수 있는데 이는 산업별로도 다양하게 나타난다. 특히 it 기업의 경우에는 다양해지고 있는 진화하고 있는 온라인 마켓플레이스 등과 같은 플렛폼을 이용하여 시장을 진입할 수 있다. 이러한 플렛폼을 적극적으로 활용하는 전략이 결국 기업의 성공적인 비즈니스 모델의 성공을 도출할 수 있다는 것을 시사하고 있다.

• 보건교육건강증진학회지
• /
• 제27권2호
• /
• pp.141-149
• /
• 2010

Objectives: This paper aims to compare the intervention development steps of the revised PRECEDE-PROCEED model and the Intervention Mapping model. Methods: Concepts and structure of the intervention development step of each model are reviewed with examples. Results: The revised PRECEDE-PROCEED model and the Intervention Mapping model share characteristics in intervention development in employing PRECEDE assessments, applying a social ecological framework and behavior theories for intervention building, emphasizing multi-interventions at multiple levels, and involving stakeholders and existing resources in intervention development. A detailed explanation of the intervention alignment and matrix building is provided with illustration of examples. Conclusion: Intervention development should not be done compartmentally but in line with other steps in a planning model to sustain the program logic. For successful application of planning models for intervention development, solid understanding of the models and behavior theories are required. Multisectoral collaboration is also critical for the successful application.

• 한국전자거래학회지
• /
• 제7권2호
• /
• pp.55-68
• /
• 2002

Internet group buying systems have been widely used recently. In those systems, because the reserve price is provided by the buyer, the success rate can be decreased if the reserve price is set too low compared with the normal price. Otherwise, an unsuitable successful bid can be made if the reserve price is set too high based on inaccurate information. Likewise, the seller's providing too high a bid price can deteriorate his/her own successful bid rate, whereas a successful bid with too low a price may make no profit in the sale. Therefore, pricing agents that recommend adequate prices based on the past buying and selling history data can be helpful. In this paper, we propose two kinds of agents. One suggests reserve prices to buyers based on the past buying history database of the system. The other recommends bid prices to a seller based on the past bidding history data of the company using the cost accounting theory. Through performance experiments, we show that the successful bid rate can increase by preventing buyers from making unreasonable reserve prices. Also, we show that, for the seller, the rate of successful bids with appropriate profits can increase. Using the pricing agents, we design and implement an XML-based group buying system.

• 한국보건간호학회지
• /
• 제29권3호
• /
• pp.426-440
• /
• 2015

Purpose: This qualitative study aimed to understand older adults' perspectives on successful aging and develop a model of a successful aging process, within the Korean socio-cultural context. Methods: This study used a Grounded Theory approach. Through theoretical sampling, 14 participants were selected from older adults at a public health center and a volunteer institution in Gyeonggi Province, South Korea. Results: The basic social process identified was "expanding the aging self", which was preceded by three phases, namely, adjusting to the changes, developing the valuable self, and embracing the environment. Participants used 2-3 strategies for successful aging in each phase. For adjusting to the changes, participants used strategies such as "adopting a positive attitude", "accepting the changes", and "being at the center of life". To develop the valuable self, "re-identifying capacities", "having something to do", and "advancing to a healthy lifestyle" were used. Participants embraced their environments with "sharing with others" and "embracing younger generations". The causal condition for expanding the aging self was the changes in participants' physical, mental, or psychosocial situations. Conclusion: These findings suggest a theoretical foundation for the development of potential nursing interventions to promote self-care management and the interpersonal relationship for successful aging among Korean elderly individuals.

• 아태비즈니스연구
• /
• 제13권1호
• /
• pp.213-230
• /
• 2022

Purpose - The purpose of this study is to find out any potential factors for explanatory variables when calculating the virtual successful bid rate in case of no collusion. Design/methodology/approach - An empirical analysis was conducted in this study with a regression analysis that included 725 bid samples under the public construction technical type bidding. Findings - The result of the basic analysis showed that there are several factors affecting the successful bid rate. First, collusion variable; second, government variable; third, successful bidder design score variable and the number of bidder variable among bidding features; fourth, turnkey variable based on the alternative method; fifth, civil works variable and plant works variable based on building work; sixth, asset variable and the fourth-quarter performance difference variable. However, the technical proposal method variable among bidding features was found to be statistically insignificant in column(4). Research implications or Originality - The significance of this research is that new variable such as the government variable and the fourth-quarter performance difference variable were added in the regression model, which showed statistically significant research results.

• 오토저널
• /
• 제17권6호
• /
• pp.1-5
• /
• 1995

• 대한치과기공학회지
• /
• 제27권1호
• /
• pp.175-179
• /
• 2005

• 수산경영론집
• /
• 제37권1호
• /
• pp.73-93
• /
• 2006

This paper tries to apply the standard method for the estimation of range and degree of fisheries damages caused by warm water drained by generating plants to a real situation. The theoretic foundation of the study has been shown in the article published on the journal of fisheries business administration of last year. The paper tries to examine the degree of external appicability of the theoretic model through empirical study. The results of the study are as follows. The model has been found a successful device for the estimation of fisheries damages caused by warm water drained by generating plants. It also shows a possibility to work in any other fisheries damage cases caused by several kinds of public undertaking on coastal areas. The key of the model is the successful derivation of the quantity amount of the critical variation of environmental factors for example, in this case, water thermal variation. Therefore the countinous and appropriate collection of law data on the environmental factors under a viewpoint of statistics is essential to the usefulness of the model.