• 산경연구논집
• /
• 제7권3호
• /
• pp.27-36
• /
• 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.

• 전기학회논문지
• /
• 제60권5호
• /
• pp.929-935
• /
• 2011

Customers hardly change to electric prices in old days because electricity is essential commodity, while demand changes with price after deregulation. It's explained by price-based demand response with demand-elasticity matrix. Also all of the customers have had identical demand-price elasticity matrix till now. But in a practical power system, various customers are present with taking a variety of demand-price elasticity. Therefore this paper proposes demand-price sensitivity to represent different demand-price elasticity. Also as proposing demand-reliability sensitivity, it is modeling various customers' characteristics to reliability. And then this paper calculates total expected interruption cost of customer from the customer interruption cost and the demand-reliability sensitivity. A total expected interruption cost of system is shown as opportunity cost of a generation cost.

• 대한전기학회논문지:전력기술부문A
• /
• 제50권12호
• /
• pp.568-574
• /
• 2001

The variations of real time electric power price in competitive electricity markets have influence on electric power demands of the consumers. The effects of the consumers for electric power price can be expressed the price elasticity coefficient of the power demand as a measurement. Residential, commercial, and industrial consumers with different characteristics cause the different price elasticity of the power demand due to changing the pattern of consumption. It is necessary that the effects of electric power demands as a function of elasticity coefficient for each loads should be analyzed in Korea which is processing deregulated electric market. Therefore, this paper calculate the elasticity coefficient of each loads and analysis the effects of electric power demands as a function of elasticity coefficient of inflexible and flexible consumers in competitive electricity market.

• 자원ㆍ환경경제연구
• /
• 제9권2호
• /
• pp.333-347
• /
• 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.

• 노동경제논집
• /
• 제34권3호
• /
• pp.1-28
• /
• 2011

이 논문은 노조기업의 노동수요탄력성이 비노조기업의 그것보다 작을 것이라는 이론적 예측을 실증적으로 검증한다. 이를 위해 기업정보 TS2000의 1990~2009년 기간의 기업체패널 자료를 이용하여 노동수요함수의 정태모형과 동태모형 그리고 노동비용 비증방정식을 추정한다. 추정결과는 첫째, 노조기업의 노동수요의 임금탄력성은 0.34~0.49로 비노조기업의 절반 수준이하로 나타났다. 둘째, 노조기업은 임금 및 산출 변화에 대한 고용조정에서 비노조기업보다 더 경직적인 것으로 나타났다. 셋째, 노동과 자본간 대체탄력성에 있어서는 노조기업과 비노조기업 간에 차이가 없는 것으로 나타났다.

• 한국신재생에너지학회:학술대회논문집
• /
• 한국신재생에너지학회 2011년도 춘계학술대회 초록집
• /
• pp.76.1-76.1
• /
• 2011

With the growing penetration of distributed generation including from renewable sources, smart grid power system is needed to address the reliability problem. One important feature of smart grid is demand response. In order to design a demand response program, it is indispensable to understand how consumer reacts upon the change of electricity price. In this paper, we construct an econometrics model to estimate the hourly price elasticity of demand. This panel model utilizes the hourly load data obtained from KEPCO for the period from year 2005 to 2009. The hourly price elasticity of demand is found to be statistically significant for all the sample under investigation. The samples used for this analysis is from the past historical data under the price structure of three different time zones for each season. The result of the analysis of this time of use pricing structure would allow the policy maker design an appropriate incentive program. This study is important in the sense that it provides a basic research information for designing future demand response programs.

• 한국산학기술학회논문지
• /
• 제15권1호
• /
• pp.72-80
• /
• 2014

본 연구는 한국의 커피수요를 추정하고 이를 바탕으로 커피수요의 가격탄력성, 소득탄력성, 교차탄력성을 살펴보았다. 자료는 2003~2012년까지의 통계청에서 제공하는 도시가계조사 마이크로 데이터를 이용하였고 LA/AIDS모형과 SUR방법을 이용하여 커피수요를 추정하였다. 분석결과 커피의 자기가격탄력성과 소득탄력성은 각각 -0.259, 0.455추정되어 비탄력적으로 나타났고 소득 항 추정계수는 음(-)으로 나타나 필수재의 성격을 나타내고 있다. 이는 소비자물가안정정책을 수립할 때 커피도 중요한 품목으로 고려할 필요성이 제기된다. 또한 커피와 담배사이의 교차탄력성은 -0.121로 추정되어 보완관계가 있는 것으로 나타났고 가구주를 기준으로 남성이 여성보다 더 많이 소비하는 것으로 나타났으며 연령별로는 50대가 가장 많이 소비하는 것으로 나타났다.

• 한국인구학
• /
• 제27권1호
• /
• pp.81-90
• /
• 2004

도시가구의 인구학적 특성을 감안하여 흡연가구의 미시자료를 활용한 이차형식 준이상 수요 체계를 추정해본 결과 담배수요의 가격탄력성은 -0.52 로 추정되었고 가구소득이 높을수록, 가구주 교육수준이 높을수록, 자녀수가 많을수록 담배수요는 가격에 대하여 비탄력적임이 확인되었다.

• 한국인구학
• /
• 제25권2호
• /
• pp.271-291
• /
• 2002

도시가구의 원시자료를 활용하여 가구의 인구학적 특성을 감안한 수요체계의 추정을 통한 수요탄력성을 산출한 결과 주류소비의 총지출 탄력성은 0.71 정도로 비교적 필수적인 지출항목으로 판명되었다. 한편 가격탄력성은 기간중 평균 1.93으로 주류소비는 가격에 매우 탄력적이며 그 추세는 최근에 들어 보다 더욱 탄력적으로 변하는 경향이 확인되었다.

• 무역학회지
• /
• 제46권4호
• /
• pp.219-234
• /
• 2021

Armington elasticity has been a methodology for analyzing how much imports could increase in response to importing price cuts, assuming the possibility of incomplete substitution of domestic and imported products. This study calculates Armington elasticity values in Korean fisheries sector and presents an analysis method for classifying items based on price and preference differences. The model is modified reflecting the characteristics of the fisheries market along with the typical OLS, PAM, and ECM models. The result's implication is that products with a high import growth rate do not necessarily show a high Armington value, but it could be seen that price is not the only factor facilitating fisheries imports increase. Considering the items of which demand increases due to importing price cuts have an indiscriminate demand between domestic and imported products, the results could be interpreted that the Korean fisheries importing market has been easily affected by the changes in import prices. Fisheries grouping by price and preference demonstrates that explanatory variables other than price should be considered when estimating import demand.