• 한국콘텐츠학회논문지
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• 제14권11호
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• pp.772-782
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• 2014

이 연구는 지방의료원의 공공성과 효율성에 미치는 영향요인과 두 변수들 간의 관계를 규명하여 향후 지방의료원의 경영개선을 위한 정책적 함의를 도출할 목적으로 시행되었다. 33개 지방의료원의 2008~2012년 5개년간의 자료를 분석한 결과는 다음과 같다. 첫째, 지방의료원의 9개 공공성 변수는 평균값을 기준으로 내 외부환경요인, 경쟁정도의 평균값 간에 차이를 보였다. 둘째, 효율성의 평균값을 기준으로 의료수익 대 재료비비율, 관리비비율, 100 병상당 의사수, 1인당 지역총생산이 차이를 보였다. 마지막으로, 공공성과 효율성의 관계를 회귀분석을 활용하여 분석한 결과 의료급여환자수비율, 분만의료건수가 효율성에 음(-)의 영향을 미치고 의료급여환자진료비가 효율성에 양(+)의 영향을 미쳤다. 연구결과는 공공성을 위해 정부지원을 확대하여야 한다는 일반론적 주장보다는 변수별로 접근, 분석할 필요가 있음을 보여준다. 즉 추후 정부지원을 어디까지 할 것인가에 대한 논거를 마련하기 위하여 지방의료원의 경영 개선 노력으로 미칠 수 없는 외부환경요인 즉 경쟁의 정도(HHI), 재정자립도 등에 대한 보다 심층적인 분석이 수행될 필요가 있다.

• Journal of Microbiology and Biotechnology
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• 제17권1호
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• pp.146-153
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• 2007

A mathematical competition model between normal flora and an invading pathogen was devised to allow analysis of bacterial infections in a host. The normal flora includes the various microorganisms that live on or within the host and act as a primary human immune system. Despite the important role of the normal flora, no mathematical study has been undertaken on models of the interaction between it and invading pathogens against a background of antibiotic treatment. To quantify key elements of bacterial behavior in a host, pairs of nonlinear differential equations were used to describe three categories of human health conditions, namely, healthy, latent infection, and active infection. In addition, a cutoff value was proposed to represent the minimum population level required for survival. The recovery of normal flora after antibiotic treatment was also included in the simulation because of its relation to human health recovery. The significance of each simulation parameter for the bacterial growth model was investigated. The devised simulation showed that bacterial proliferation rate, carrying capacity, initial population levels, and competition intensity have a significant effect on bacterial behavior. Consequently, a model was established to describe competition between normal flora and an infiltrating pathogen. Unlike other population models, the recovery process described by the devised model can describe the human health recovery mechanism.

• 한국환경복원기술학회지
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• 제26권5호
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• pp.47-56
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• 2023

The Quercus variabilis and Quercus dentata, which are said to be relatively drought tolerant among the important genus Quercus that represent deciduous broad-leaved forests in Korea. These two species are widely distributed worldwide in Korea, Japan and China (northern, central, western and eastern subtropical regions). This study compared the ecological niche breadth and overlap according to growth response in 4 soil moisture gradients for the two species and tried to reveal degree of competition and ecological niche characteristics. The ecological niche breadth was 0.977±0.020 for Q. variabilis and 0.979±0.014 for Q. dentata, the latter being slightly wider. And they were similar in 5 traits (stem length, leaf lamina length, leaf width length, stem weight, leaf petiole weight), Q. variabilis was more dominant in 4 traits (leaves number, stem diameter, leaf area, leaf petiole length), and Q. dentata was more dominant in 7 traits (root length, shoot length, plant weight, root weight, shoot weight, leaf weight, leaf petiole weight). The ecological niche overlap for soil moisture between the two species overlapped most in plant structure-related traits and least in photosynthetic organ-related traits such as petiole length. As a result of principal component analysis, degree of competition between the two species for soil moisture was more severe when the soil moisture condition was low than high. Among the measured traits that affect the two-dimensional distribution, 8 traits (Leaves number, Shoot length, Stem length, Plant weight, Root weight, Shoot weight, Stem weight, Leaves weight) were correlated with the factor 1, and 2 traits (Leaf width length, Leaf petiole weight) were correlated with the factor 2 (r>0.5). These results show that the ecological response of the two species to soil moisture is not a few traits involved, but several traits are involved simultaneously.

• Journal of Korea Trade
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• 제26권4호
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• pp.1-22
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• 2022

Purpose - This paper empirically investigates the effect of a rise in the global value chain (GVC) on the industry-level efficiency of resource allocation (based on plant-level inefficiency measures) in Korea, with a focus on various channels through which a rise in the GVC can increase competition among firms and thus induce resources to be allocated more efficiently across firms. Design/methodology - We empirically investigate the relationship between the industry-specific importance of GVC and the industry-level allocative inefficiency that is measured as the dispersion of the plant-level marginal revenue of capital (MRK) as in Hsieh and Klenow's (2009) influential model. We compute MRK dispersion for industries sorted by various characteristics that are closely related to firm/industry sensitivity to the GVC. In other words, we compute the average industry-level MRK dispersion for industries sorted by industry-specific importance of GVC and compute the difference between the two groups of industries (higher vs. lower than the median GVC); we also calculate the difference between industries sorted by industry-specific export (import) intensity. This is our difference-in-difference estimate of the MRK dispersion associated with the GVC for the export (import)-intensive industry versus the non-export (non-import)-intensive industry. This difference-in-difference estimate of the MRK dispersion conditional vs. unconditional on firm-level productivity is then calculated further (triple-difference estimate). Findings - A rise in GVC is associated with a decrease in the MRK dispersion in the export-intensive industry compared to the non-export-intensive industry. The same is true for industries that rely heavily on imports versus those that do not (i.e., import intensive vs. non-intensive). Furthermore, the reduction in the MRK dispersion in the export-intensive industry associated with an increase in the GVC is disproportionately greater for high-productivity firms. In contrast, the negative relationship between GVC and MRK dispersion in the import-intensive industry is disproportionately smaller for high-productivity firms. Originality/value - Existing studies focus on the relationship between GVC and aggregate output, exports, and imports at the country level. We investigate detailed firm/industry-level mechanisms that determine the relationship between GVC, trade, and productivity. Using the plant-level data in South Korea, we investigate how GVC is related to the cross-firm MRK dispersion, an important measure of allocative inefficiency, based on Hsieh and Klenow's (2009) influential economic theory. This is the first study to provide plant-level evidence of how GVC affects MRK dispersion. Furthermore, we examine how the relationship between GVC and MRK-dispersion varies across export intensity, import intensity, and firm-level productivity, providing insight into how GVC can affect firms' exposure to competition in the global market differently depending on market conditions and thus generate trade-related productivity gains.

• 산경연구논집
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• 제1권1호
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• pp.23-31
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• 2010

본 연구는 부동산 시장에서 시장지향성의 요인인 시장정보 창출과 시장정보 확산, 시장정보에 대한 반응이 부동산 거래성과에 미치는 영향을 알아보고 이 과정에서 환경적 요인인 시장 격변성과 경쟁강도에 따라 부동산 시장에서 고객의 반응을 연구하여 시장의 범위에 최종 고객은 물론 부동산거래업자 등을 포함시킴으로써 보다 광범위한 마케팅 패러다임을 지향하고자 하였다. 따라서 부동산 유통과정에서 나타나는 시장지향성의 특성을 통해 부동산 거래성과에 미치는 영향에 관한 연구를 목적으로 연구대상을 결정하고 설문을 통한 실증분석을 하였다. 이번 연구 결과로 새로운 고객과의 관계와 부동산 시장에 대한 가능성을 확인하고 보다 적극적인 마케팅 전략을 수립하여 부동산 거래성과를 새로운 방향을 모색하는데 그 목적이 있다.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2018년도 추계학술대회
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• pp.114-114
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• 2018

Among the various volatile organic compounds (VOCs) emitted by the plant, floral scent plays a key role in attracting pollinators for reproduction and mediates ecological interactions. Floral scent is an important trait and industry drives the competition for flowers with novel scents. Chrysanthemum is one of the well-known ornamental plants and is a popular cut flower across the world. Floral scent and the genes responsible for the floral scent emission are poorly studied in chrysanthemum. In the present study, floral scent and the expression pattern of floral scent genes were analyzed in two chrysanthemum cultivars 'Golden Egg' and 'Gaya Glory'. Initially, intensity of the floral scent in five developing stages of flower including 'budding (B), bud developing (BD), initial blooming (IB), almost open (AO) and open flower (OF)' was analyzed using electronic nose (E-nose) with six metal oxide sensors. Based on the distance analysis, different stages of flower showed different relative intensity of scent according to the sensory evaluation. Although the scent pattern differed by stage, scent intensity was strongest in the OF stage in the completely opened flower in both the cultivars. Further, expression pattern of six genes in the floral scent pathway including FDS, IDI, ISPH, TPS2, TPS5 and TPS6 was observed in all the five stages of the flower in both the cultivars. The expression pattern of all the six genes differed by stage and the terpene synthase genes TPS2, TPS5 and TPS6 showed good expression levels in the $5^{th}$ flower stage compared to other stages. This study provides a preliminary data for understanding the regulation of floral scent in chrysanthemum.

• Asia Marketing Journal
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• 제16권4호
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• pp.19-37
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• 2015

Forming interfirm collaborative relationships has become a key aspect of a firm's marketing strategies to create value for customers and achieve greater firm performance. While empirical findings are mixed in previous studies, this study is an effort to identify boundary conditions for the benefits of marketing alliances. We investigate internal and environmental factors that may magnify or constrain the effect of marketing alliances on firm profitability. Given the complementary relationship between marketing and R&D activities, we focus on a firm's R&D intensity as an internal factor that may magnify the value of marketing alliances for firm performance. For environmental factors, we focus on industry turbulence and industry competitiveness. Industry turbulence refers to the degree to which industry market conditions change quickly and unpredictably, whereas industry competitiveness refers to the degree to which a firm faces competition in the industry. By testing these factors, we are intended to reveal boundary conditions that determine the value of marketing alliances for firm profitability. The analysis of firms in the diverse industries shows that while the main effect of marketing alliances on firm profitability is not significant, it becomes more positive when R&D investment is more intensive or when industry environment is more turbulent. The results of this study imply that just forming more marketing alliances may not be enough to increase firm profitability. Our findings imply that marketing alliances become more effective in a dynamically changing industry environment. That is, firms can cope with industry uncertainties more effectively by forming marketing alliances. At the same time, the moderating effect of R&D intensity implies that the internal investments in R&D magnify the effect of marketing alliances on firm profitability. The findings of this study contributes to the existing alliance literature in three aspects. First, this study enhances our understanding of the contingent value of marketing alliances by testing both internal and external factors that may influence the effectiveness of marketing alliances. Second, this study responds to the need for research that investigates actual performance resulting from interfirm relationships. Third, while previous studies primarily focused on a specific industry, this study extend previous findings of the boundary conditions for the benefits of marketing alliances in a broader context.

• 해양안보
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• 제7권1호
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• pp.1-29
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• 2023

동북아시아에서는 '바큇살 구조'라 불리우는 미국 중심의 양자동맹체제가 지속되고 있다. 그러나 최근 급변하는 동아시아의 국제정세와 이에 대응하기 위해 국가들 간 다각도로 협력하는 양상들을 보았을 때, 이러한 동맹체제의 변화 가능성에 대해서 진단해 볼 필요성이 제기되었다. 따라서 본 연구에서는 주 위협, 위협의 강도, 국가 간 신뢰도라는 요인을 바탕으로, 유럽과 동남아시아의 집단안보체제에 관한 사례연구 및 비교분석을 통해 이에 대한 영향을 분석하였다. 본 연구는 이를 바탕으로 동북아에서의 안보체제 변화 가능성에 대해서 연구를 진행하였으며, 현재의 갈등이 지속적으로 악화된다면 동북아를 넘어 동아시아 전반에서의 집단안보체제가 형성될 가능성이 분명히 존재한다고 보았다.

• 한국엔터테인먼트산업학회논문지
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• 제13권5호
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• pp.47-57
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• 2019

신제품 혁신은 기업의 생존과 지속적인 성장의 핵심 요소다. 급변하는 시장 환경과 글로벌 무한 경쟁으로 혁신적인 신제품 개발의 중요성은 점점 커지고 있다. 국내 엔터테인먼트 산업 또한 경쟁의 강도가 높아지고 있어 많은 기업들이 글로벌 무한경쟁시대에서 지속적 경쟁우위를 확보하고자 혁신적인 신제품 개발에 집중하고 있다. 문제는 경쟁강도가 높아지고 아이돌 생산 시스템이 점점 고도로 발전할수록 기획 및 마케팅에 소요되는 비용은 점점 늘어난다는 것이다. 공정거래위원회에서 한 아이돌 그룹을 만드는 과정에서 드는 비용을 대략 10억 원 내외로 추산한 바 있고 몇몇 대형 기획사에서는 투자비용을 20~30억 원 내외라고 주장하고 있다. 린스타트업은 신제품 혁신 및 지속적인 경영을 위한 혁신 프레임으로 주목받고 있다. 린스타트업 이론을 적용하여 신제품 혁신을 주도하면서 지속적으로 성장하고 있는 국내기업들이 속속 등장하고 있지만 체계적인 관련 이론 및 사례 연구가 매우 제한적이다. 특히, 구체적 전략 수립에 도움을 줄 수 있는 사례연구는 드문 실정이다. 이에 본 연구는 신제품 혁신에 성공한 JYP 엔터테인먼트의 아이돌 스타 트와이스의 사례를 분석하여 실무적인 시사점을 제시하고자 하였다. 이론적으로는 린스타트업을 엔터테인먼트 산업 및 기업으로 확장하였고, 국내 엔터테인먼트 기업의 아이돌 발굴 및 육성에 관한 혁신전략 수립에 활용 가능한 기초 자료로써의 실무적 함의를 제시하였다는 점에서 본 연구의 의의가 있다.

• 한국의류산업학회지
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• 제6권1호
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• pp.78-84
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• 2004

To regain competitive advantages in the global textile industry the Korean textile firms need to strategically collaborate each other on developing partnership relations. This study, as a first step for developing a futuristic partnership between textile firms, examined the characteristics of current partnership relations among textile firms in Daegu and Gyeongbuk regions. Data were obtained from 163 textile firms in the region by a questionnaire survey. More than a half of the textile firms had a partnership experience in product manufacturing and wanted to have one in product development. Partnerships with firms in the same sub-industry showed the highest frequency even though various pairs were observed. Length of partnership was related with the history and size of the firm but not with partnership performance. Partnership itself affected neither the firm's perception of its competitive power nor the perceived intensity of industry competition.