• KSII Transactions on Internet and Information Systems (TIIS)
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• 제18권8호
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• pp.2346-2365
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• 2024

This research identifies specific user experience factors that have positive impact on user's behavior intention to use so that a new technology called stretchable display(SD) can be accepted and spread in the market. To show how these factors can be applied to SD home appliances, a few concrete designs have been suggested. In the first stage of the research, the initial concept of innovative product design with stretchable display was derived by developing a scenario that solves the expected experience by home product users through the attributes of the SD technology. In the second stage, a scenario of the product to which a stretchable display was applied was suggested to investigate the expected experience factors that influence the behavior intention to use. As a result of the analysis, users showed a positive intention to use for the factors of Functionality of Space and Life Support, Presentation of Preferences, and Customization of Emotions, provided by the product with SD technology applied. In the next stage, based on the verified user experience factors, multifunctional kitchen appliances design, smart furniture design with flexible surfaces, and smart interior wall tile design have been derived. After all, the differentiated transformable interface designs shown through this process have been suggested as three-dimensional soft-physical button design and attachable design for multi-curved soft furniture. This study is significant as it emphasizes a user-centered design process over a technology-centered approach, enhancing market acceptability and focusing on design features aligned with the user's expected experience.

• 산경연구논집
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• 제9권10호
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• pp.73-82
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• 2018

Purpose - Unstable vegetable prices have been one of the major concerns in Korean agricultural and food marketing system. The Korean government has implemented a number of policy instruments, including government purchasing programs in order to alleviate fluctuations in vegetable prices. The economic impact of policy instruments has been assessed based on the average monthly price change rate before and after the implementation of the policy. However, this approach failed to provide a net impact of policy measures on price stabilization in the vegetable markets, as policy impacts could not be successfully distinguished from other effects on price changes in the vegetable market. The purpose of this study is to evaluate the net impact of the government purchasing program on the price volatility of dried red pepper which is considered one of the major vegetables in Korea. Research design, data, and methodology - This study develops a monthly dynamic partial equilibrium model of Korean dried red pepper market. Behavioral equations in the model were estimated by OLS and synthetic method based on the annual and monthly time series data from 1993 to 2015. The model is first simulated to yield actual dried red pepper market conditions in 2015 as a baseline and then compared it to the scenario assuming that there were no government purchases of dried red pepper in 2015. Results - According to the ex-post scenario analysis using the developed model, without the government procurements in 2015, the average monthly price change rate and the value of coefficient of variation of dried red pepper in 2015 would be respectably 7.9 percent and 0.10. It is relatively higher than the actual average monthly price change rate and the value of coefficient of variation of dried red pepper in 2015 which were respectively 1.7 percent and 0.06. Conclusions - The ex-post simulation results in this study shows that if there were no government purchases of dried red pepper in 2015, the dried red pepper market would have had much higher volatile price movements. The results of this study would provide useful information for future price stabilization policy of vegetable markets in Korea.

• 지적과 국토정보
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• 제52권2호
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• pp.121-135
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• 2022

본 연구의 목적은 공간정보기업의 거래정보를 토대로 공간정보산업의 융·복합부문 탐색과 표면상무관회귀모형을 이용한 동 산업의 시장규모 전망이다. 공간정보산업조사 통계에서 확인할 수 없는 공간정보 융·복합부문은 한국기업데이터의 사업체DB(2010~2019년)를 이용하여 공간정보 관련 핵심키워드를 검색하여 상품별 구매 및 판매데이터를 확보하여 분석하였다. 공간정보사업체의 융·복합은 서울 특정구와 일부 경기도권역과의 가치사슬 간 거래관계에서 나타났다. 해당 융·복합 사업체는 가치사슬 2(활용·서비스)&3(융·복합)단계의 매출액이 가장 크고, 가치사슬 1(생산·구축)&2단계와 2&3단계의 융·복합은 2010년 대비 2019년 매출은 약 2배 가량 상승하였다. 2019년 통계청 기준 공간정보산업의 총매출액은 약 8조원으로 발표되었으나, 본 연구에서는 공간정보산업의 총매출액은 23~27조원, 융·복합 활동을 고려할 때 28~47조원으로 추정되었다. 마지막으로 공간정보산업 미래 시장규모예측을 위하여 표면상무관회귀(SUR: Seemingly Unrelated Regression)모형을 이용하여 2025년 및 2030년에 시나리오 1(인구증가율 0.38%, 2020~2024년), 0.07%(2026~2030년)을 적용할 경우, 공간정보산업 매출액은 -0.37% ~ 0.069% 감소하였다. 동 기간 시나리오 2(평균임금상승률 1.2%)를 적용하면 공간정보산업 매출액은 2.326% ~ 12.185% 증가하였다. 즉, 공간정보산업의 매출액은 노동, 총요소 생산성 및 자본 생산성의 함수이며, 특히 노동생산성과 연구개발 등의 총요소생산성을 제고하는 방향의 정책개발과 대안 수립 연구가 추가적으로 필요하다.

• 한국건설관리학회논문집
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• 제11권5호
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• pp.32-40
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• 2010

최근 몇 년간 주택가격의 주기적 변동에 대한 대응으로 정부는 주택담보대출 비율 (LTV) 및 총 부채상환비율 (DTI) 등 주택 담보대출 비율 조절 정책을 지속적으로 시행하고 있다. 그러나 한국 주택시장에서는 최근에 들어서야 주택담보대출을 통한 주택수요 조절 개념이 정착되었기 때문에 경험적 방법의 접근으로는 주택담보대출 정책 타당성을 평가하는데 한계가 있다. 따라서 다양한 시각 및 시스템적 논리로 접근하는 포괄적이고 동태적인 분석 방법론이 요구된다. 본 연구는 시스템 다이내믹스 (System Dynamics)의 시스템적 사고 및 시뮬레이션 모형을 통한 민감도 분석을 통해 주택 담보대출 정책의 주택 수요 및 가격 조절 기능에 대한 타당성을 평가한다. 분석 결과 주택담보대출 관련 정책은 경기 침체시 있는 것으로 분석된다. 그러나 주택담보대출 규제로 인해 1차 대출기관의 잠재 수요가 제 2 금융권 시장으로 이동할 경우 주택수요 조절을 위한 정책 의도가 상쇄되는 것을 확인할 수 있고 이에 따라 제 2 금융권 대출에 대한 정책 병행의 필요성을 도출 할 수 있다.

• 동남아시아연구
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• 제21권3호
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• pp.139-203
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• 2011

This paper attempts to review of recent development of ASEAN financial integration and to evaluate it and predict its future aspect. For this purpose, we first examine the historic aspect of ASEAN financial integration such as ASEAN financial service open agreement or ASEAN capital market forum report and currently agreed integration plan. In addition, we study the development stages of ASEAM member countries in terms of its economic size or income level. Finally, we look at the financial market and institutional aspect of ASEAN member countries and the recent development of global financial market. From these analyses, we find several important facts. First, it is true that ASEAN, in general, will enjoy the effect of expanding regional investment and improving the quality of financial service through the financial integration. We think that its long term benefit is too large for ASEAN member states to avoid. Second, as a result, it is certain that ASEAN will corporate further to make its financial market to be integrated in the future. Third, however, despite these benefits and continuing efforts, we expect that it will be very difficult for ASEAN to reach a stage of financial integration as suggested in the Blueprint of ASEAN Economic Community by the year of 2015. The large difference among member states in term of economic and financial development will not allow for them to reach a single goal within a short time. Instead, we expect the following scenario for the integration process will hold. First, ASEAN will reach an agreement on the institutional framework by 2015 and afterwards, slowly the markets will begin to integrate. Second, at the earlier stage, not all but some countries will start the integration process. We expect that the financial market of ASEAN 5 will first be integrated and other 5 will join to it later.

• 한국지하수토양환경학회지:지하수토양환경
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• 제17권2호
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• pp.62-70
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• 2012

Rainfall, on Jeju Island varies regionally in relation to Mt. Halla with higher rainfall within southern area and lower in western area, and its variability is expected to expand according to the climate change scenario. Non-parametric trend analysis for rainfall, using both historic (1971-2010) and simulated (2011-2100) data assuming the A1B emissions scenario, shows regionally increasing trends with time. In perspective of agricultural land use, area for market garden including various crop types with high water demand is increasing over the Island, especially in the western area with lower rainfall compared to southern area. On the other hand, area for fruit including mandarin and kiwi with low water demand is widely distributed over southern and northern part having higher rainfall. These regional disparity of water demand/supply may be more affected by extreme events such as drought and heavy rainfall that has not yet been considered. Therefore, it is necessary to make policies for water resource management considering both demand and supply in different regions with climate change impacts over Jeju Island.

• 농업과학연구
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• 제25권1호
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• pp.41-51
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• 1998

This study not only carried out to grasp about the sununarized characteristics of the relationship between international timber market and production trend of wood products, but also focused on the analysis of korean wood demand and the long-term forecast with econometric analysis. The result of regression analysis for wood demand in Korea is that coniferous roundwood demand(CIWD) is explained by coniferous foreign roundwood price(CWRI), Gross domestic product(GDP), a dummy variable. Non-coniferous roundwood demand(NCIWD)is explained by non-coniferous roundwood price(NCWRI), coniferous roundwood price(CWRI), a dummy variable. As the result of long-term forecast by base case, the total roundwood demand was forecasted $11,107,000m^3$ in the year 2000, $11,781,000m^3$ in 2005, $12,565,000m^3$ in 2010. As the result of scenario 1, total roundwood demand was forecasted $11,027,000m^3$ in 2000, $11,435,000m^3$ in 2005, $11,952,000m^3$ in 2010. And as the result by scenario 2, total roundwood demand was forecasted $11,341,000m^3$ in 2000, $12,208,000m^3$ in 2005 $13,257,000m^3$ in 2010.

• 한국유기농업학회지
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• 제28권2호
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• pp.171-188
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• 2020

The Coronavirus disease (COVID-19), first identified in China in December 2019, has widely spread worldwide and is an ongoing pandemic. It is expected that the ripple effect of COVID-19 on the global economy including the agricultural sector will increase substantially if not properly controlled shortly. This study examines the potential impact of COVID-19 on the Korean beef cattle sector and farm labor demand for Korean beef cattle using a dynamic partial equilibrium model. The agricultural production value and farm labor demand for Korean beef cattle in the scenario assuming pessimistic GDP growth rate (-1.2% in 2020) with no direct supply shocks fell by up to 4.00% and 0.67%, respectively, compared to the baseline which represents the future without COVID-19 outbreak. On the other hand, the agricultural production value and farm labor demand for Korean beef cattle in the scenario assuming both pessimistic GDP growth rate and supply shocks (-12.7% beef imports and + 2.4% feed cost in 2020) increased by up to 12.08% and 1.99%, respectively, compared to the baseline.

• 드라이브 ㆍ 컨트롤
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• 제14권3호
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• pp.8-17
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• 2017

With automobiles sharply increasing in numbers worldwide, we are faced with critical social issues such as traffic accidents, traffic jams, environmental pollution, and economic inefficiency. In response, research on ITS is promoted mainly by regions with advanced automotive industry such as the U.S., Europe, and Japan. While Korea is working on moving forward in the global market through developing and turning to global standards systems related to ASV (Advanced Safety Vehicle), the country is not fully prepared for such projects. The purpose of ACC (Adaptive Cruise Control) is to control a vehicle's longitudinal speed and distance and minimize driver workload. Such a system should be valuable in preventing accidents, as it reduces driver workload in the 21st-century world of telematics created by development of the automobile culture industry. In this light, the thesis presents a method to test and evaluate ACC system and a mathematical method to assess distance. For the proposed test and evaluation, theoretical values are tested with vehicle test and a database is acquired, by using vehicles equipped with an ACC system. Theoretical evaluation criteria for developing ACC system may be used and scenario-specific evaluation methods may find useful application through testing the formula proposed by comparing the database and mathematical method.

• 한국IT서비스학회지
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• 제8권3호
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• pp.209-221
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• 2009

The successful mass media drama, 'The 1st Shop of Coffee Prince', has received lots of supports from the audience by showing them a vivid life and also enabling them to dream a real fantasy. One among the most powerful strategies that made this drama stay successful is the marketing value of the drama space fully maximized when doing the production. This study, introducing a unique representation of 2-D cell matrix with x-y plots of drama space set along the time stream following the scenario, first proposes a quantitative way of uncovering the hidden relation between drama space and scenario using nonlinear matrix filtering method and, secondly, suggests possible service designs mainly constrained by economical standpoints of the stakeholder in producing the drama. The methodology may invoke a plausible contradiction with art instincts that have hardly been supposed to be affected by financial debate, which, nevertheless, must sometimes be allowed under the circumstance of pursuing optimality in programming and producing the drama that must survive in the world of competitive market of service business.