• 한국시스템다이내믹스연구
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• 제6권2호
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• pp.95-116
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• 2005

The purpose of this study is to analyze the structure of renewable energy market in order to deploy more renewable energy in Korea on the basis of information asymmetry between suppliers and demanders. To attain this purpose we develop the model to analyze and simulate the renewable market using system dynamics. This model is developed not to forecast the accurate size of market but to learn more structure of market using our limited data, mental model and knowledge of market.

• 한국전자통신학회논문지
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• 제8권11호
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• pp.1725-1732
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• 2013

국내 소프트웨어산업의 진흥을 위하여 공공 System Integration(이하 SI) 시장에 대기업 참여를 전면적으로 제한하는 소프트웨어산업진흥법 개정안이 발효됨에 따라 공공 SI 시장이 중소기업위주로 개편되어야 할 상황에 놓여 있다. 그러나 공공 SI 시장은 중소기업이 감당하기에 무리가 따르는 대형 SI 프로젝트가 다수여서, 대형 SI 프로젝트를 발주해야 만하는 발주기관은 당혹해 하고 있고, 어느 중소기업도 자신의 한계를 넘는 대형 프로젝트 수주를 위해 적극적으로 뛰어들지 못하고 있다. 본 논문은 중소기업위주의 SI 시장 활성화를 위하여 취해야 할 접근 방법을 제안한다.

• 한국IT서비스학회지
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• 제14권4호
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• pp.185-197
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• 2015

As the uncertainty of demand in B2B electronics market has increased, firms need a strong method to estimate the market demand. An accurate prediction on the market demand is crucial for a firm not to overproduce or underproduce its goods, which would influence the performance of the firm. However, it is complicated to estimate the demand in a B2B market, particularly for the private sector, because firms are very diverse in terms of size, industry, and types of business. This study proposes both qualitative and quantitative demand forecasting approaches for B2B PC products. Four different measures for predicting PC products in B2B market with consideration of the different PC uses-personal work, common work, promotion, and welfare-are developed as the qualitative model's input variables. These measures are verified by survey data collected from experts in 139 firms, and can be applied when individual firms estimate the demand of PC goods in a B2B market. As the quantitative approach, the multiple regression model is proposed and it includes variables of region, type of industry, and size of the firm. The regression model can be applied when the aggregated demand for overall domestic PC market needs to be estimated.

• 대한수학회지
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• 제61권5호
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• pp.875-898
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• 2024

This study estimates the true price of an asset and finds the optimal bid/ask prices for market makers. We provide a novel state-space model based on the exponential Ornstein-Uhlenbeck volatility and the Heston models with Gaussian noise, where the traded price and volume are available, but the true price is not observable. An objective of this study is to use Bayesian filtering to estimate the posterior distribution of the true price, given the traded price and volume. Because the posterior density is intractable, we employ the guided particle filtering algorithm, with which adaptive rejection metropolis sampling is used to generate samples from the density function of an unknown distribution. Given a simulated sample path, the posterior expectation of the true price outperforms the traded price in estimating the true price in terms of both the mean absolute error and root-mean-square error metrics. Another objective is to determine the optimal bid/ask prices for a market maker. The profit-and-loss of the market maker is the difference between the true price and its bid/ask prices multiplied by the traded volume or bid/ask size of the market maker. The market maker maximizes the expected utility of the PnL under the posterior distribution. We numerically calculate the optimal bid/ask prices using the Monte Carlo method, finding that its spread widens as the market maker becomes more risk-averse, and the bid/ask size and the level of uncertainty increase.

• 기술혁신학회지
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• 제5권3호
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• pp.396-411
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• 2002

This is an analysis of international mobile displays industry. There has been severe competition in market and technology. In technology, There has been competition between Japan, USA and Korea. On the other hand, there has been competition in the products market between Korea, Japan and Taiwan. Recently Korea has catched-up Japan in mid-size display industry. The response of Japanese firms are as follows: technological collaboration with Taiwanese firms in mid-size and concentration in small and large size displays. New competition, however, has started, since new technologies such as TFT-LCD and OELD have been used in products.

• 대한지역사회영양학회지
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• 제27권6호
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• pp.480-491
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• 2022

Objectives: This study examined the problems encountered when analyzing the market size, purchase, and consumption of HMR (home meal replacements) in the Republic of Korea. Methods: The macro data relevant to the market size and purchase status of HMR were critically summarized. The micro data retrieved from the 2019 & 2020 Korea National Health and Nutrition Examination Survey (KNHANES) were analyzed to understand the consumption of HMR. Results: The Korea Agro-Fisheries & Food Trade Corporation and the Ministry of Food and Drug Administration reported the market size of HMR, whereas the Korean Rural Economic Institute and the Rural Development Administration reported the purchase expense and frequencies of HMR. Since the values on the market size and purchase status were calculated or surveyed using different scopes of HMR, there have been reliability issues for the data presented. Additionally, lack of consensus on the use of Korean terms corresponding to HMR was found to be a problem. To examine the consumption of HMR, analysis of the food intake data from KNHANES presented results with very low validity due to the inappropriate survey and coding scheme not reflecting the inclusion of new food types. Conclusions: Several problematic discrepancies were encountered in the statistics on HMR. The fundamental cause of these problems was the absence of agreement on the scope of HMR and the Korean terms corresponding to it. Considering the increasing importance of HMR in Korean diets, urgent cooperative efforts are required between the government and academia to derive an agreed Korean term and establish the scope of HMR.

• 수산경영론집
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• 제53권2호
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• pp.21-41
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• 2022

The effect of change in exchange rates on an economy is very important, especially, to a small open economy like South Korea. I explore whether Free Trade Agreements (FTAs) have positive influences on exchange rate-pass through import price of import market for fishery products in South Korea. Competition among FTA partners is enhanced after FTAs are effective. I expect that the extent to which are exchange rate pass-through (hereafter, ERPT) into import price of fishery products (in terms of Korea currency) would be reduced since the import market for fishery products in South Korea is an oligopolistic market. Specifically, I investigate two research questions with six South Korea's FTA partners-Norway, Thailand, Peru, U.S., China and Vietnam. First, whether the extent to which are exchange rate pass-through into import price of fishery products from six FTA partners would decrase in the post-FTA era; seconds, the size of reduction has a negative relation with the size of their market share in the import market for fishery products in South Korea if it decreases. The empirical results indicate that the degree of ERPT into import price from other FTA partners than Norway has been reduced after FTA, statistically and significantly; however, I do not find the evidence that the size of reduction is related to their market share. The findings in this study imply that FTAs have negative effects on producers' economic welfare in South Korea's fishery industry by reducing the extent to which are exchange rate pass-through as well as reducing tariff barriers.

• 한국식품저장유통학회지
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• 제18권5호
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• pp.684-691
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• 2011

GAP 인증제도 도입초기의 시기적 필요성을 반영하여 GAP 인증 수삼이 어떤 소비자를 대상으로 어떠한 방향의 마케팅전략을 수행해야하는지에 대한 방향성 제시를 위해 수삼 선택속성별 부분가치를 산출하였으며 GAP 인증 수삼의 시장예상점유율 시뮬레이션, 시장세분화(segmentation), 표적시장선정(targeting), 표적시장 소비자 특성 등에 대한 일련의 연구를 수행하였다. 수삼 선택의 주요 속성인 안전성, 크기, 가격에 대한 부분가치효용을 분석해 본 결과 일반 수삼보다는 GAP 수삼을 선호하였으며(1.373), 크기에 있어서는 큰 수삼을 선호하였고(1.014), 가격대는 낮은 것을 선호하였다. 또한 각 속성에 대한 상대적 중요도에서는 안전성이 47.2%, 크기가 35.0%, 가격이 17.8%의 중요도를 나타냈다. GAP 인증 수삼의 가상 상황에서의 시장점유율 시뮬레이션에서는 GAP 인증 수삼이 일반수삼과 비교하여 같은 크기에 가격이 다소 높거나, 같은 가격에 크기가 작은 경우에 도 소비자의 선택확률이 높은 것으로 분석되었다. 소비자 선호특성을 기반으로 군집분석을 통하여 수삼시장을 세분화한 결과, '큰 수삼 선호시장', '안전성 선호시장', '저가격 선호시장' 셋으로 나눌 수 있으며, 표적시장(target market)인 '안전성 선호시장'의 규모는 전체 수삼시장의 26.8%인 약 2,968톤으로 추정되었다. 또한 표적시장 소비자의 구매 특성을 살펴본 결과, 구입과 관련해서는 상대적으로 대형 마트에서의 수삼구매를 선호하는 것으로 나타났으며 포장지에 안전성이나 연근에 대한 정보를 표기하기를 원하고 있었다. 가격 및 재배년근과 관련해서는 750g 한 채당 자가 소비용은 2~3만원, 선물용은 5~6만원대를 상대적으로 선호하는 것으로 나타났으며 재배년근의 경우에는 4년근 선호비율이 타 군집(세분시장)보다 상대적으로 높게 나타나GAP 인증 수삼은 굳이 고년근으로 재배할 필요는 없을것으로 생각된다. 표적시장 소비자의 인구통계학적 특성을 살펴보면 여성비율이 상대적으로 높았으며 연령대는 40대 이하가 많았고 학력과 관련해서는 군집 간 유의성 있는 차이는 보이지 않았다.

• 한국병원경영학회지
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• 제5권2호
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• pp.1-21
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• 2000

This study was to examine the degree of market orientated effort by hospital type and size,. and analyzed the moderating effect of environments between market orientation and it's performance. First, there was no significant differences by hospital type, such public hospital, university hospital, and private hospital. However, the orders of market orientation implementation was university hospital. private hospital, and public hospital This finding suggest that university hospital and public hospital, should be market-oriented, or customer-oriented more now, relatively. Second, there were no significant differences in marketing as management policy by hospital types, i.e. public, university or private sector hospitals. However, as to the intensity of the implementation of the market-oriented approach, private hospitals came first, followed by the university hospitals, then the public ones. This finding suggests that university and public hospitals should be more market or customer oriented to compete in the market. Third, only the competitive environment does active moderating roll on hospital performance. The competitive environmental factor forces the organization to be more market oriented. This means the more you are positively situated in the competitive environment, the more you are looking for a market oriented approach. You become more aware of the value of customers and you become more focused on the customer satisfaction and thus become more patient oriented in every facet of decision making. And market oriented hospitals recognize the importance of utilization of high tech medical treatment skills and equipment in patient care. Fourth, according the analysis, market oriented effort gives more influence on hospital performance than the environmental factors. This means that the market oriented effort should become a culture of the hospital which seeks to out distance themselves from its competitors.

• The Journal of Asian Finance, Economics and Business
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• 제8권7호
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• pp.349-356
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• 2021

This study comprehensively investigates whether there is an impact of risk, size, profitability, earnings per share, dividend yield, and book-to-market equity on the stock prices of Jordanian banks listed on the Amman Stock Exchange (ASE) for the period 2006-2018. To mitigate endogeneity concerns and to control for within-bank dynamics, panel data fixed effects estimations are used. This study shows that size (SIZE), profitability (ROA), dividend yield (DY) and book-to-market equity (BE/ME) ratios are statistically significant determinants of stock prices. The risk (RISK) factor measured by volatility of ROA has a positive and significant effect on the stock prices, while earnings per share has minimum influence on the stock prices. The results show that ROA has a significant and positive effect and provides the largest effect among all variables used in this study, while the RISK factor has a positive and significant effect. In contrast, SIZE, DY, and BE/ME have a significant negative effect on stock prices. The paper presented new evidence showing that ROA is a better determinant of stock prices in Jordanian banks, and RISK significantly affects stock prices. The researcher recommends using a factor of profitability represented by ROA which has a significant positive effect on the stock prices in Jordanian banks and applying the ROA variable to other sectors.