• 가정과삶의질연구
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• 제12권2호
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• pp.229-238
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• 1994

본 연구는 시간자원의 중요성이 증가하는 현대사회에서 주부가 지각하는 시간압박 감이 점차 높아질것으로 예상되는 가운데 시간압박감이 소비자행동에 어떻게 작용하고 그로 인한 문제점은 무엇인지 밝혀보려는 의도에서 수행되었다. 서울시에 거주하는 주부 546명을 대상으로 시간압박지각정도를 측정하고 이를 바탕으로 소비자집단을 분류된 소비자 집단 사이에 인구.사회 경제적특성과 시간 절약형 내구제의 구매의사결정 과정의 차이가 있는지 분석하였다. 그 결과 시간 압박지각 정도에 따라 고.중.저의 세집단으로 구분되었는데 중간집단에 가장 많은 응답자가 포함되었고 높게 지각하는 집단에 가장 적은 응답자가 포함되었다. 그러나 기존의 연구와는 달리 취업주부의 18.7%가 시간압박을 낮게 지각하는 집단에, 그리고 전업주부의 6.8%가 시간압박을 높게 지각하는 집단에 분류되어 취업주부가 시간압박을 높게 지각하는 전형적인 소비자집단이 아닐수 있음을 발견하였다. 집단별 인구.사회경제적 특성과 시간절약형내구재의 구매의사결정과정의 차이도 부분적으로 밝혀졌으나, 예상과 달리 시간압박감을 높게 지각하는 집단의 시간절약형내구재의 소유와 사용이 오히려 낮게 나타났다.

• 한국경영과학회지
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• 제27권2호
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• pp.81-96
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• 2002

Telecommunication services are distinctive in that their adoptions are influenced by network effect resulting in 'the late take-off phenomenon' and the 'critical mass' problem. In this paper we examined, so called, 'the late take-off phenomenon' in the diffusion process of telecommunication services. We compared the parameters of the diffusion process of consumer durables with those of fax services in the US and Korea. By analyzing the parameters of a new diffusion model based on the threshold model proposed by Markus, we found that 'the late take-off phenomenon' resulted from the low heterogeneity of the threshold distribution for the potential adopters. A simulation approach was proposed for the theoretical implication of the 'critical mass' problem in the start-up telecommunications services.

• 한국경영과학회지
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• 제16권1호
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• pp.45-58
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• 1991

The importance of marketing mix variables, replacement demand, and competition in a new product growth model has been cited by many researchers. In this paper, these factors are integrated with an aim to model company sales of competing durables. Based on the most popular new product growth model, numerous extensions and incorporations of contributions from related research fields are tried. Model parameters are estimated by the Kalman filter. And, the proposed model is applied to the sales of four consumer durable goods. Empirical applications show the benefits, as well as the limitations of the proposed model.

• 한국신뢰성학회지:신뢰성응용연구
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• 제9권3호
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• pp.259-274
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• 2009

Printed circuit boards for RAM are widely used in modern electronics such as computers, artificial satellites and consumer durables. They are exposed to a very diverse environment and consists of many complicated components and therefore needs careful approach to the enhancement and assessment of reliability of the item. In this article reliability standards for PCBs for RAM are established in terms of quality certification tests and failure rate tests.

• 디지털융복합연구
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• 제6권2호
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• pp.55-64
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• 2008

The Internet possesses not only features of mass media but also features of word of mouth communication. Communication channel is considered as one of most important variables in diffusion process. In this paper, we examined functionality of technology diffusion on the Internet through the use of meta tags. We have measured the coefficients of the Bass diffusion model which has been well-established in new product diffusion. This research shows that the Bass model is appropriate for describing technology diffusion on the Internet. The external influence as represented by the coefficient of innovation was found to be much smaller while the internal influence dominates in all meta tag diffusion. In meta tag diffusion, the internal influence as represented by the coefficient of imitation was increased at least twice bigger than that of consumer durables and information technology. Collecting necessary data in social sciences research can be a burden. This research shows that it can be alleviated through the use of software agents over the Internet. The research made use of software agents for collecting longitudinal data from publicly accessible archive such as Archive.org.

• Journal of Mechanical Science and Technology
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• 제14권4호
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• pp.380-392
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• 2000

A typical production-distribution system consist of three main echelons representing the retailer, distributors, and a factory each with an on-site warehouse. The system is sufficiently general and realistic to represent many industrial situations. However, decision functions and parameters have been selected to apply particularly to the production and distribution of consumer durables. The flows included in the model are materials, orders, and those information flows needed to support the material and order-rate decisions. In this work, a realistic production-distribution system has been used as a basic model, which consists of three sectors: retailer, distributor, and factory. That system is a nonlinear 25th-order continuous system interconnected between the echelons. Using a modern control algorithm, a typical multi-echelon production-distribution system using a dynamic controller is numerically simulated in the nominal plant and in the perturbed plant when the piecewise constant manufacturing decision is limited by a factory manufacturing upper-limit due to capital equipment, manpower, and factory lotsize.

• KDI Journal of Economic Policy
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• 제27권2호
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• pp.123-154
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• 2005

본 논문은 우리나라 가계의 내구재 소비결정에 관한 실증분석이다. 기존의 연구에 의하면 표준적인 항상소득가설은 비내구재 소비에 대해서는 비교적 높은 설명력을 나타내지만 내구재 소비에 대해서는 설명력이 거의 없는 것으로 나타난다. 본 연구에서는 이러한 항상소득가설의 대안으로서 조정비용의 존재를 허용하는 (S, s)모형을 고려한다. (S, s)모형에 의하면 내구재 소비는 조정비용 때문에 매 순간 최적 수준을 유지하지는 못하지만, 일단 조정이 이루어지는 경우에는 최적 수준을 달성할 것으로 예상된다. 본 논문은 (S, s)모형의 이러한 예측을 검증하기 위하여 한국가구 패널조사자료에 나타난 각 가계의 내구재 소비와 비내구재 소비의 관계 및 내구재 소비의 기간 간 변화를 살펴본다. 분석결과에 의하면 표준적인 항상소득가설은 기각되는 반면 (S, s)모형은 대체로 자료와 일치하는 것으로 나타난다.