• 전기학회논문지
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• 제63권5호
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• pp.644-651
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• 2014

The renewable energy system and the real-time pricing can provide the significant economic advantage for end-user of residential house. However, according to recent studies, high initial cost of renewable energy system such as photovoltaic (PV) system and lack of suitable load control methods adjusting electric power consumption in response to time-varying price are regarded as the major obstruction for introduction of renewable energy system and real-time pricing in residental household. In this paper, we propose automated optimal load control strategy which aim to achieve not only minimizing the electricity cost but also the increase in the utilization rates of PV generation power of residential PV house in real-time pricing environment. Simulation results show that our proposed optimal load control strategy leads to significant reduction in the electricity costs and increase in the utilization rates of power generated by PV system in comparison with the conventional PV house. Therefore, the proposed optimal load control strategy can provide more economic benefit to end-user.

• Asian-Australasian Journal of Animal Sciences
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• 제23권7호
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• pp.848-854
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• 2010

The objectives of this study were to estimate genetic parameters for the carcass price and carcass traits contributing to carcass grading and to investigate the influence of each carcass trait on the carcass price using multiple regression and path analyses. Data for carcass traits and carcass prices were collected from March 2003 to January 2009 on steers of Korean cattle raised at private farms. The analytical mixed animal model, including slaughter house-year-month combination, linear and quadratic slaughter age as fixed effects and random animal and residual effects, was used to estimate genetic parameters. The effects of carcass traits on the carcass price were evaluated by applying multiple regression analyses. Heritability estimates of carcass traits were $0.20{\pm}0.08$ for carcass weight (CWT), $0.33{\pm}0.10$ for back fat thickness (BFT), $0.07{\pm}0.05$ for eye-muscle area (EMA) and $0.25{\pm}0.10$ for marbling score (MS), and those of carcass prices were $0.21{\pm}0.10$ for auction price per 1 kg of carcass weight (AP) and $0.13{\pm}0.07$ for total price (CP). Genetic correlation coefficients of AP with CWT and MS were $-0.35{\pm}0.29$ and $0.99{\pm}0.04$, respectively, and those of CP with CWT and MS were $0.59{\pm}0.22$ and $0.39{\pm}0.29$ respectively. If an appropriate adjustment for temporal economic value is available, the moderate heritability estimates of AP and CP might suggest their potential use as the breeding objectives for improving the gross incomes of beef cattle farms. The large genetic correlation estimates of carcass price variables with CWT and MS implied that simultaneous selection for both CWT and MS would be also useful in enhancing income.

• 한국의류학회지
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• 제22권7호
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• pp.851-861
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• 1998

The present study examined the consumer's evaluations of apparel quality and price, and the brand recognition according to the consumer's decision making styles(quality-conscious, brand-conscious, and price-conscious consumers). The two hundred and three subjects were asked to evaluate the quality and price of the two almost identical experimental blouses except for brand labels. One was the national brand, Keith and the other was the private brand, Ivy house. Also, the subjects were asked to answer if they recognize these two brands. The data were collected by self-administered questionnaire and were analyzed by frequency, percentage, one-way ANOVA, two-way ANOVA, and factor analysis. The results of the study were as floows: (1) Examining the perceptions of product qualities, generally speaking, all three types of the consumers evaluated the national brand's qualities more highly than those of the private brand. However, in-part, the price-conscious consumers evaluated some product charac-teristics more highly than those of national brand: touch of fabric, sewing, and the hemline finishing. (2) Investigating the perceptions of product prices, All three types of the consumers evaluated the price of the national brand more highly than that of the private brand. Among those, the price-conscious consumers recognized the price of the national brands most expensively. (3) Identifying the brand recognition of the two brands, the brand-conscious consumers showed the highest brand recognition and the price-conscious consumers showed the lowest brand recognition in both national and private brands, 51.9% of the total respondents identified the private brand showing comparatively high brand recognition. (4) Examining the relationship between the demographic factors and the consumer decision making styles, the monthly household income was statistically significant. Namely, 71.4% of the brand-conscious consumers have the monthly household income of 3,000,000 Won or higher which means that the higher monthly household income, the higher tendency to be brand-conscious consumers.

• East Asian Economic Review
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• 제17권2호
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• pp.161-206
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• 2013

Since the global financial crisis in 2008, the world economy has been suffering from the Great Recession characterized by high and persistent unemployment as well as drastic fall in asset prices. Real business cycle theory or new-Keynesian economics which has been the dominant paradigm in macroeconomics for the last four decades is unable to explain the high and persistent unemployment during the Great Recession. This implies that the economics of Keynes should be taken seriously again as a tool to explain the Great Recession. Farmer (2012) proposes a new way of interpreting the economics of Keynes by providing it with a solid micro-foundation based on labor markets with search. According to Farmer (2012), aggregate economic activity independently depends on the long-term self-fulfilling expectations about the stock prices. As a consequence, the government or the central bank should implement a policy that influences the public's confidence about the stock market. For an open economy like the Korean economy, it is not only stock price but also the price of asset such as house that matters more for the aggregate economic activity. Households in the Korean economy hold more than 70 percent of their wealth in the form of real estate asset, especially housing asset. This makes the public's confidence about the future prices of houses even more important in explaining the business cycles of the Korean economy. Policymakers should implement policies to improve the confidence of households about the housing market to recover from the recession caused by a fall in house prices. Little theoretical work has been done in explaining fluctuations in the aggregate economic activity from the point of house prices. This paper develops a small open economy model with traded and non-traded capital based on Farmer (2012) and shows that the aggregate economic activity also independently depends on the households' self-fulfilling expectations about the future prices of non-traded asset such as houses.

• 복식
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• 제36권
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• pp.25-41
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• 1998

The purpose of this research was to study four impulse buying dimensions and planned buying, marketing stimulus factors in store, buying im-pulse and impulse buying of female consumer. The female consumers were divided into three groups, i.e., college students, housewives and workingwomen. 408 women living in Kyung Nam were selected as respondents by convenience sampling methods. The results of this research can be summarized as follows. 1. The overall impulses were stronger for college students and workingwomen than house-wives. The impulse buying dimensions were different according to the status of women. 2. Buying impulse and impulse buying of clothing were more likely to be for college students and working women than housewives. 3. The display in the store gave the information to the three groups equally. These infor-mations helped to make the impulse buying. 4. The marketing stimulus factors were different according to the status of respondents. Sensitive and aesthetic factors were important for college students and workingwomen, and the utility of clothing were important for house-wives. The color of clothing, the discount of regular price and the low price had the same meanings to the three groups. 5. Impulse buying dimensions were effected by the marketing stimulus factors. 6. The fashionable products, the use of credit card, famous brand, gracious display of clothing and the kind services of salesman were the common factors that stimulate the consumer to buy the clothings. But the color and design of products had more effect on the college students, and the discount of regular price and the utility of clothing were more important for the workingwomen. The color and the utility of clothing were stimulus factors for the housewives.

• 가족자원경영과 정책
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• 제2권2호
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• pp.135-145
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• 1998

The purpose of this study was to examine how much the cost of marriage ceremony has increased according to the economic growth. The relationship between marriage expenditures and other comparison variables such as per capital GNP, monthly income, consumer price index was particularly examined. All the money values were adjusted by consumer price index. Data from the Central Committee for Promotion of Saving were used in this study. The results of this study follow. First, nominal and actual total outlay of marriage ceremony has continuously increased. Total marriage ceremony cost was positively correlated with the housing price so that bridegroom’s outlay were greater than that of bride’s one since bridegroom was more likely to have the responsibility for the price of new couple’s house. Second, it was found that increased percentage rate of marriage ceremony cost was greater than that of national economic growth. The total marriage expenditure was about 10 times as much per capital income in 1990. Third, it was revealed that housing cost increased three times from 1990 to 1995, and marriage ceremony expense was accordingly increased twice during the same periods. Such trends tend to increase continuously. Last, the marriage cost percentage to monthly income called marriage expenditure share increased by 1990 and then decreased. Such a decreasing trend can be explained by the increased amount of income partly due to the higher wage rate compared to other conditions since 1990.

• 한국건설관리학회논문집
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• 제22권1호
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• pp.27-35
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• 2021

본 연구는 서울/경기 지역을 대상으로 도시철도의 승하차인원이 공동주택가격에 미치는 영향을 분석하였다. 도시철도 역까지의 거리는 서울/경기 모두에서 주택가격에 부(-)의 영향을 주는 것으로 나타났으며, CBD/GBD까지의 소요시간은 주택가격에 부(-)영향을 주는 것으로 나타났다. 본 연구가 중점적으로 분석하려고 한 승하치인원 및 지상역 여부의 경우 서울/경기 지역 모두에서 지상역은 주택가격에 부(-)의 영향을 주는 것으로 나타났으나, 승하차인원의 경우 서울에서는 부(-)의 영향이 경기지역의 경우 정(+)의 영향이 있는 것으로 나타나, 지역마다 상권의 희소성 등에 따라 다른 결과가 나타날 수 있음을 도출했다. 이러한 연구 결과는 그동안 도시철도 역 접근성 위주로 분석한 연구들과 달리 도시철도역의 교통서비스 및 교통 외적 요인을 모형에 포함시켜 분석하였다는데 학술적 의의가 있으며, 이는 향후 주택정책을 위한 시장분석에 활용하고 나아가 수도권 도시계획 및 신도시 개발, 도시철도 교통계획 시 시사점을 제공하고자 한다.

• 한국융합학회논문지
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• 제10권3호
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• pp.193-201
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• 2019

다가구주택은 수익형부동산으로 활용되고 있는 주택의 유형들 중 상대적으로 적은 금액으로 투자가 가능하고 소유주가 직접 거주하며 임대수익을 누릴 수 있다. 본 연구에서는 아파트에 비해 상대적으로 연구가 미진했던 주택 유형 중 하나인 다가구주택의 매매가격에 영향을 미치는 요인에 대한 분석을 통하여 다가구주택의 실수요자와 투자자의 매수 의사결정 및 디벨로퍼의 개발전략 수립 시 시사점을 제공하고자 하였다. 실증분석을 위해 경상남도 창원시에서 2016년에서 2018년 사이에 거래된 다가구주택 매매사례 299개를 구득하여 헤도닉 가격모형을 활용하여 분석하였다. 종속변수는 다가구주택의 연면 적당 매매가격으로 선정하였으며, 독립변수는 지역특성, 입지특성, 주택특성 및 시기더미로 구분하여 설정하였다. 실증분석 결과 지역적으로는 의창구과 성산구 지역의 가격이 높았고, 입지특성에서 유의한 변수로는 '주요상권과의 거리(-)', '대로 및 광로와의 거리(-)', '도로 2면 접면 여부(+)'인 것으로 나타났다. 주택특성의 변수들 중에서는 '연면적(+)', '원룸형 여부(+)', '남향여부(+)', '경과연수(-)', '옵션제공여부(+)'가 매매가격에 유의한 영향을 미치는 것으로 나타났다.

• 문화기술의 융합
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• 제9권3호
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• pp.281-286
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• 2023

본 연구는 서울, 서울 강남, 서울 강북을 대상으로 주택 매매가격과 전세가격의 인과관계를 분석하였다. 시간불변 그랜져 인과성 검정을 통해 분석한 결과, 서울과 강북 지역에서는 매매가격과 전세가격이 양방향 인과성이 있는 것으로 분석된 반면, 강남은 양방향으로 인과성이 없는 것으로 분석되었다. 반면, 시간가변 그랜저 인과성 검정을 통해 분석한 결과에서는 서울, 강남, 강북 지역 모두 1993년 이후 전기간 동안 주택 전세가격은 매매가격에 그랜저 인과관계가 있는 것으로 분석된 반면, 전세가격에 대한 매매가격의 그랜저 인과성이 발견된 빈도는 그 역에 비해 적었다. 특징적인 것은 강남 지역은 2010년 이후 전세가격이 매매가격에 대해 지속적으로 그랜저 인과하는 것으로 분석되었다는 것이다. 이와 같은 분석 결과는 매매시장과 전세시장이 양방향으로 강한 영향을 주고받는 구조에서 전세시장에 대한 유동성 공급 확대는 주택시장 전반에 걸쳐 변동성을 확대할 수 있음을 시사한다.

• 토지주택연구
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• 제4권1호
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• pp.43-54
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• 2013

본 연구는 글로벌 금융위기 이후 침체양상을 지속하고 있는 수도권 주택시장과 관련하여, 금융위기 이후 주택가격 결정요인의 변화를 벡터오차수정(VAR)모형을 통해 분석하였다. 글로벌 금융위기가 발생한 2008년 3분기를 기준으로 이전과 현재까지로 거시경제변수와 주택가격변수간의 동태적 관계를 보기 위해 충격반응도와 분산분해 분석을 실시하였다. 분석결과를 정리하면 먼저 수도권 주택매매가격의 경우 금융위기 이후에 전세가격과 주택매매가격 자체의 변화에 의해 더 영향을 받는 것으로 나타난 반면, 금융위기 이전에 주택매매가격에 미치는 영향력이 큰 것으로 나타났던 종합주가지수와 국고채 수익률은 금융위기 이후 영향력이 사라진 것으로 나타났다. 한편, 수도권 주택전세가격의 경우 금융위기 이전과 이후 모든 기간에서 다른 변수들보다 주택매매가격과 주택전세가격 자체의 영향력이 크게 나타난 가운데, 금융위기 이전에는 종합주가지수와 생산자물가가 영향을 미치고 실질GDP는 별다른 영향을 주지 못했다면, 금융위기 이후에는 역으로 실질GDP의 영향력이 크게 나타났고 생산자물가와 종합주가지수는 별다른 영향을 미치지 못하는 것으로 분석되었다. 이와 같이 경제불안의 지속으로 인해 수도권 주택매매 및 전세가격은 실질GDP와 같은 실물경기에 더 크게 영향을 받게 된 것으로 판단된다. 따라서 최근의 주택가격의 하락은 유럽재정위기 등으로 인해 지속되고 있는 국내경제 불확실성을 감안할 때 회복세는 크게 제한될 것으로 보이며, 향후 주택경기를 활성화시키기 위해서는 금융 및 공급규제 완화 등의 대책보다는 경제활성화를 통한 구매력 제고에 집중할 필요가 있을 것이다.