• 제목/요약/키워드: Industrial demand

검색결과 2,543건 처리시간 0.025초

수요자 중심의 6차산업 특화단지 조성을 위한 탐색적 연구 (An Exploratory Study on Development Plan of Consumer-centered Cluster Complex in 6th Industry)

  • 이윤상;안현
    • 토지주택연구
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    • 제9권2호
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    • pp.33-40
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    • 2018
  • Korea seems to have introduced the legal basis for supporting and revitalizing the 6th industry since about 2010. Problems such as lack of systematic support system, inadequacy of cooperation and cooperation between ministries, and poor efficiency have been raised. Also, there is a lack of information on the designation, development method, participant, and management plan of the 6th industrial complex. In this study, we review prior researches and cases related to the 6th industry and examine how to efficiently create the 6th industry-specific complex by analyzing the requirements of customers for the enterprises, residents, professionals and officials of the metropolitan area and non-metropolitan areas. As a result of the questionnaire survey, some suggestions for the establishment of the 6th industry specialization complex were drawn. First, 77.5% of the total requires a combination of public and mixed use, which can be expected to have positive effects such as sharing development gains with local residents and improving resettlement of local residents. Second, the 6th industrial complex should be harmonized with the 1st, 2nd and 3rd industries. However, unlike the standardized land use plan of existing industrial complex, it is necessary to expand the distribution and sales space to reflect the demand for tertiary industry. It is also necessary to consider measures for securing primary industrial sites or securing primary industrial sites through external procurement. Third, it is necessary to establish and operate a plan reflecting rent and rental demand after leasing for a certain period.

산업용 전력수요의 탄력성 분석 (Elasticities in Electricity Demand for Industrial Sector)

  • 나인강;서정환
    • 자원ㆍ환경경제연구
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    • 제9권2호
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    • pp.333-347
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    • 2000
  • We employed various econometic methods to estimate the production index elasticity and the price elasticity of elecricity demand in Korea and compared the forecasting power of those methods. Cointegration models (ADL model, Engle-Granger model, Full Informtion Maximum Likelihood method by Johansen and Juselius) and Dynamic OLS by Stock and Watson were considered. The forecasting power test shows that Dynamic OLS has the best forecasting power. According to Dynamic OLS, the production index elasticity and the price elasticity of electricity demand in Korea are 0.13 and -0.40, respectively.

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서비스 가격지수를 이용한 PCS 시장규모 예측모형 (Effect of Price on the PCS Demand)

  • 장석권
    • 산업공학
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    • 제9권3호
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    • pp.44-51
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    • 1996
  • The purpose of this paper is to develop a modeling framework for analyzing the effect of price on the PCS (Personal Commununications Service) demand. To achieve this aim, a nonlinear regression model was derived to capture the income effect on the PCS demand and then was combined into an integrated Bass diffusion model. The model was then applied to the emerging PCS market in Korea and the market demands up to the year 2006 were estimated. The results were reviewed and evaluated in various aspects. Finally, the possibilities of model enhancement and model extensions were explored.

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농촌관광 위성계정의 작성방법 (A Methodological Approach of Estimating Rural Tourism Satellite Accounts)

  • 김현숙;서영창;이종상
    • 농촌지도와개발
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    • 제22권3호
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    • pp.285-292
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    • 2015
  • Recently, the demand of rural tourism has been increased to promote farm household income and rural economy. Korean government has supported to promote rural tourism. One of the most difficult tasks in estimating the economic impact of the tourism industry is how the industry should be defined in terms of an economic sector, since tourism is not defined in national Input-Output (I-O) tables or in the Standard Industrial Classification code. Moreover, there is no specified Standard Industrial Classification for rural tourism. The purpose of the study aims to examine specified Standard Industrial Classification of rural tourism using the I-O model analysis to estimate the economic impacts of rural tourism. Results showed that there were two components considered as inputs. One is the inputs that final demand can move to input of rural tourism in I-O tables. The other is one that the final demand was provided by farm household as intermediate inputs.

조립 생산 시스템에서 최적 Base-Stock 수준 (The Optimal Base-Stock Level in Assembly lines)

  • 고성석;서동원
    • 산업경영시스템학회지
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    • 제30권3호
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    • pp.89-93
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    • 2007
  • In this study, we consider an assembly line operated under a base-stock policy. A product consists of two parts, and a finished product transfers to a warehouse in which demands are satisfied. Assume that demands arrive according to a Poisson process and processing times at each production line are exponentially distributed. Whenever a demand arrives, it is satisfied immediately from an inventory in the warehouse if available; otherwise, it is backlogged and satisfied later by the next product exiting from production lines. In either case, an arriving demand automatically triggers the production of a part at both production lines. These two parts will be assembled into a product that eventually transfers to the warehouse. We obtain a closed form formula of approximation for delay time or lead time distribution of a demand when a base- stock level is s. Moreover, it can be applied to the optimal base-stock level which minimizes the total inventory cost. Numerical examples are presented to show our optimal base-stock level's quality.

Congested Market Equilibrium Analysis

  • Oh, Hyung-Sik
    • 대한산업공학회지
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    • 제13권2호
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    • pp.65-77
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    • 1987
  • Congestion occurs whenever users interfere with each other, while competing for scarce resources. In a congested market, such as a telecommunication service market, users of telecommunication services incur costs in using the service in addition to the price. The user's own time costs involved in learning to use the service, waiting for the service, and making use of the service are typically greater than the price of telecommunication services. A market equilibrium analysis is performed in which a method for user demand aggregation is developed. The effects of price changes on user demands and market demands for congested services are examined. It is found that total market demands may increase as the price for less-congested services increase under certain demand conditions. This suggests that a nonuniform pricing scheme for a congested service may improve the utilization of the congested system. The sign of price cross-elasticity for congested services is show to vary with demand conditions. A possible complementary property of congested services is found and the implication of such a property is discussed. It is argued that such a complementary property may lead to a cross subsidy in a market with congestion. Finally, comparisons between uniform pricing and nonuniform pricing policies are made. A specific numerical example is given to show that a nonuniform pricing policy may be Pareto superior to a uniform pricing policy.

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공 컨테이너의 임대 계획을 위한 수리계획모형 및 해법 (Mathematical Models for Leasing Purchasing Empty Containers)

  • 박선욱;전수민;김갑환
    • 지능정보연구
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    • 제12권4호
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    • pp.39-51
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    • 2006
  • 선사에서 화물을 수송하기 위해 필요한 공(빈) 컨테이너 수요를 만족시키기 위해서 컨테이너를 구매하고 임대하는 계획을 작성하는 방법에 대해서 다루었다. 수요의 변동을 고려하여 각 기간별로 구매 또는 임대하여야 할 컨테이너의 개수와 임대기간을 결정하는 방법을 제시하였다. 컨테이너 구매 및 임대 계획작성을 위한 확정적 수리계획 모형을 제안하였으며 이 모형의 해를 구하기 위한 발견적 기법을 제안하였다.

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잠재적고객요구개선지수와 기대손실을 고려한 물류서비스 평가모형 개발 (The Development of Logistics Service Evaluation Model Considering Potential Customer Demand Improvement Index)

  • 장용혁;조유진;강경식
    • 대한안전경영과학회지
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    • 제21권1호
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    • pp.9-16
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    • 2019
  • Logistics companies are worrying about securing of differential competitiveness so as to be competitive companies in keen logistics market. The ground is how users are satisfied by sell-established service system to respond not only economic feasibility of logistics costs but also diversity and advancement of logistics needs. The competitiveness of logistics companies is also caused by customer satisfaction of service and only companies finding and satisfying customer needs continuously may be more competitive. For the competitiveness, it's the most important to analyze demands of current and potential customers and their pursuing value properly. Therefore, this researcher grasped PSL for online logistics service users with 5-point Likert-scale and quality-level decision method that consider the weighted value based on Kano model, measured customer's potential Demand for service through PCDI, and suggested methodology for deciding the priority of the improvement with loss function of Taguchi.

수도권과 지방권 수요예측모형을 통한 전국 도시가스수요전망의 예측력 향상 (Improving Forecast Accuracy of City Gas Demand in Korea by Aggregating the Forecasts from the Demand Models of Seoul Metropolitan and the Other Local Areas)

  • 이성로
    • 자원ㆍ환경경제연구
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    • 제26권4호
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    • pp.519-547
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    • 2017
  • 본 연구는 지역 단위 도시가스 수요예측모형을 이용하여 전국 도시가스수요예측의 정확도를 향상할 수 있는지 여부를 살펴봤다. 지역별 수요예측모형을 구축하게 된 배경은 용도별 도시가스 수요의 행태가 분화되는 상황에서 자료의 제한으로 용도별 수요예측모형을 구축하기 어렵다는 것에 있다. 지역별 수요예측모형은 전국수요를 수도권과 지방으로 구분하여 별도의 예측모형을 구성하는 것으로, 시간변동계수를 갖는 공적분모형을 이용하였다. 지역모형에서 전국 도시가스수요예측은 지역별 수요전망치를 합산하여 산출하였다. 2013~2016년의 4년간 예측력 평가결과, 지역별 모형을 통한 전국 도시가스수요 예측이 전국단위 예측모형에 비하여 예측력이 전반적으로 우수한 것으로 나타났다. 지역모형에서는 수도권과 지방권 모형을 별도로 구축함으로써 해당 지역 수요의 특성을 반영한 예측모형이 가능했다. 수도권수요는 가정용수요 비중이 높아 기온에 보다 민감하게 반응하고, 전력수요와 경쟁관계가 있다. 이에 반해 지방권은 산업용수요 비중이 높아 전반적인 경기상황에 따른 수요변동이 크고, 수도권과 달리 벙커씨유와 LPG와 같은 산업용 연료와 대체관계를 보였다. 상기 결과는 성숙기에 접어든 도시가스산업에서 지역별 수요에 대한 세부적인 분석을 통해 전국 단위 수요예측의 정확도를 향상시킬 수 있다는 것을 보여주고, 이와 더불어 용도별 도시가수요 분석에도 유용한 정보를 제공할 것으로 기대한다.

Elasticity of Demand for Urban Housing in Western China Based on Micro-data - A Case Study of Kunming

  • Zhang, Hong;Li, Shaokai;Kong, Yanhua
    • 산경연구논집
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    • 제7권3호
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    • pp.27-36
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    • 2016
  • Purpose - Considering the importance of housing needs to real estate market, domestic studies on real estate prices from the perspective of demand are basically based on macro-data, but relatively few are associated with micro-data of urban real estate demand. We try to find a reliable relation of elasticity of demand and commercial housing market. Research design, data, and methodology - In this paper, we have derived housing demand theoretic method and have utilized micro-data of residential family housing survey of downtown area in Kunming City in October, 2015 to estimate income elasticity and price elasticity of housing demand respectively and make a comparative analysis. Results - The results indicate that income elasticity and price elasticity of families with owner-occupied housing are both larger than those of families with rental housing. Income elasticity of housing demand of urban residential families in Kunming is far below the foreign average and eastern coastal cities level, however, the corresponding price elasticity is far higher. Conclusions - We suggest that housing affordability of urban families in western China are constrained by the level of economic development, and the current housing price level has exceeded the economic affordability and psychological expectation of ordinary residents. Furthermore, noticing the great rigidity of housing demand, the expansion space of housing market for improvement and for commodity is limited.