• 한국사회복지학
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• 제49권
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• pp.162-189
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• 2002

In general, every welfare state is to be productive. If not, the welfare state itself cannot be sustainable because resource for the development of welfare only comes from a sound level of economic development However, how to mix welfare and production differs from country to country. This article tackles this phenomenon as a starting point. Granted, contemporary studies of comparative welfare state often starts from the theory of welfare regime which has been suggested by Esping-Andersen. This article also regards the framework as an analytic tool to elaborate upon the concept of productive welfare and to categorize different types of conception of productive welfare. In liberal regime, the concept is so narrowly interpreted that they emphasize micro-efficiency of specific welfare programs. On the contrary, the other two regime types recognize the concept of productive welfare as relatively wide. Therefore, conservative and social democratic regimes underscore macro-efficiency of the welfare state as a whole. Empirical analyses of this article explores each regime's success and failure in terms of achieving fundamental goals of the welfare state, i.e. economic development and enhancement of equality. A series of evidence show that liberal regime fails in achieving both goals, while the other two regimes seem to be relatively successful. In conclusion, it may be pointed out that current tendency of neo-liberalism and anti-welfarism in Korea should be overcome, which must be the prime task of social welfare academia of this country.

• 한국항만경제학회지
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• 제17권1호
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• pp.27-51
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• 2001

The purpose of this paper is to investigate the productive efficiency of world container ports by using the DEA (Data Envelopment Analysis) method and raw data from previous research in measuring the international competitiveness of world container ports. Ports have to cope with rapid changes in shipping environments. In order for a port to compete in the global market, it must provide port services promptly and accurately. Basically, there are two approaches to measuring the international competitiveness of a container port. First, there is the traditional productivity analysis method, which analyzes productivity based on the container port's facilities (efficiency, selectivity, land availability), and by its general capacity (handling ability, storage capacity, terminal productivity). Second there is multi-attribute utility analysis, which considers several elements including the reasons for selecting particular container ports and factors determining international competitiveness. This paper follows the first method (traditional productivity analysis) and extends the limitation of previous studies by using the DEA method newly, and suggesting: the relative productive efficiency of container ports. The main results of this paper are as follows: First, the results of the DEA analysis in terms of world container ports matches that of a previous study (Jun et al., 1993) at a level of 35%. The low ratio is due to the constrained set of input-output elements, the result of only twenty container ports being analyzed in this paper. Second, the result of the DEA analysis in terms of North-East Asia's container ports matches with that of a previous study (Ha, 1996) at a level of 100 percent. Therefore we can conclude that the DEA analysis is the best measurement method for international competitiveness. Policy implications for this study are as follows: First, when port authorities want to measure the international competition power of container ports and enhance their productive efficiency, they should consider the traditional method and newly introduce the DEA method. Second, according to the analysis results of the DEA method, pen authorities should recommend benchmarking ports as reference ports in order to enhance the productive efficiency of container ports that show an efficiency score of below 1.

• 자원ㆍ환경경제연구
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• 제17권1호
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• pp.121-146
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• 2008

본 연구의 목적은 OECD 국가의 환경제약을 포함한 기술효율과 생산성 상실을 추정하여 환경효율지수를 실증분석하고 국가별 지속가능 발전 정도를 비교해 보고자 함이다. 1985년부터 1999년까지의 기간 동안 OECD 20개국의 패널자료를 사용하여 쌍곡선효율척도(hyperbolic measure of productive efficiency)에 기초한 기술효율을 측정하였다. 나아가 각 국가의 환경제약으로 인한 생산성 상실률과 산출에 대한 상실정도를 계측하였다. 1985년부터 1999년 동안 OECD 각 국가들의 환경효율지수는 점차 하락하고 있는 추세를 보여준다. 일본, 독일, 프랑스 등의 국가에서 오염물 처리에 상당한 부담을 가지고 있는 것으로 나타났다. 한국은 전반적으로 환경경제효율성이 높지만 1990년대 후반에 환경효율성이 악화되었고 OECD 국가들과 비슷하게 질소산화물 처리에 대한 부담이 높았다.

• Animal Bioscience
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• 제34권11호
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• pp.1794-1801
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• 2021

Objective: The study aimed to evaluate the productive performance, carcass yield, size of digestive organs and nutrient utilization in Mexican Creole chickens, using four diets with different concentrations of metabolizable energy (ME, kcal/kg) and crude protein (CP, %). Methods: Two hundred thirty-six chickens, coming from eight incubation batches, were randomly distributed to four experimental diets with the following ME/CP ratios: 3,000/20, 2,850/19, 2,700/18 and 2,550/17. Each diet was evaluated with 59 birds from hatching to 12 weeks of age. The variables feed intake (FI), body weight gain (BWG), feed conversion (FC), mortality, carcass yield, size of digestive organs, retention of nutrients, retention efficiency of gross energy (GE) and CP, and excretion of N were recorded. Data were analyzed as a randomized block design with repeated measures using the GLIMMIX procedure of SAS, with covariance AR (1) and adjustment of degrees of freedom (Kendward-Roger), the adjusted means were compared with the least significant difference method at a significance level of 5%. Results: The productive performance variables BWG, mortality, carcass yield, fat and GE retention and excretion of N were not different (p>0.05) due to the diet effect. In the 3,000/20 diet, the chickens had lower values of FI, FC, crop weight, gizzard weight, retention, and retention efficiency of CP (p<0.05) than the chickens of the 2,550/17 diet. Conclusion: The Mexican Creole chickens from hatching to 12 weeks of age can be feed with a diet with 2,550 kcal ME and 17% CP, without compromising productive parameters (BWG, mortality, carcass yield) but improving retention and retention efficiency of CP.

• KDI Journal of Economic Policy
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• 제27권2호
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• pp.205-237
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• 2005

본 논문은 기업의 주주가 경영자에게 경영을 대리하게 하여 본인-대리인관계(principal-agent relationship)가 발생하는 상황에서 상품시장경쟁이 기업의 내부효율성에 영향을 미치는 메커니즘을 분석한다. 본 논문에서는 두 종류의 기업을 고려한다. 하나는 기존기업(incumbents)이고, 다른 하나는 신규 진입기업(entrants)이다. 각 기존기업의 주주는 경영자에게 경영을 위임하고 경영자의 노력을 관찰하지 못하여 도덕적 해이가 발생한다. 기존기업의 경영자는 두 종류의 일을 수행하는데, 하나는 비용절감을 위한 노력(생산적인 노력)이고, 다른 하나는 진입장벽을 구축하기 위한 노력(비생산적인 노력)이다. 기존기업의 수로 측정되는 경쟁도의 증가는 두 가지 효과를 유발한다. 하나는 '산출효과'로서 경영자의 생산적인 노력을 감소시키고, 다른 하나는 '노력대체효과'로서 비생산적인 노력을 감소시키고 동시에 생산적인 노력을 유도한다. 본 논문은 어떠한 조건에서 시장경쟁이 생산적인 노력에 대한 유인을 제공하는 비용을 감소시켜 기업의 내부효율성을 증진하는가를 살펴본다.

• Animal Bioscience
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• 제36권7호
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• pp.1067-1074
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• 2023

Objective: Better feed efficiency can be achieved by selecting rabbit genotypes with lower residual feed intake (RFI) under high ambient temperatures. Methods: Two genotypes of rabbits (Jabali, Saudi local breed and imported, Spanish V-line) were used to derive RFI and to investigate the relationship between RFI and productive traits. In total, 250 animals (125 each) were housed in individual wire mesh cages in a semi-closed rabbitry. Growth performance, feed criteria, carcass evaluation, biochemical blood analysis, and immune responses were determined. Results: Superiority in growth performance, feed efficiency, carcass characteristics, and cellular immunity was recorded in the Jabali breed compared to the V-line genotype. According to regression analysis, a significant effect of daily body weight gain was found, upon computing the expected feed intake in both genotypes. Moreover, mid-body weight^0.75 had a significant effect only in the Jabali breed. Positive correlation coefficients between RFI and dry matter feed intake or feed conversion ratio were found. The same trend in this relationship between RFI and productive traits was observed in some cases for both genotypes. An opposite trend in correlations was observed in the studied genotypes for some traits. Conclusion: The results suggest that the relationship between RFI and productive traits must be taken into consideration in rabbit breeding programs under the prevailing environment. However, further studies are required to investigate the effect of rabbit genotype and environmental factors on computing RFI.

• 대한가정학회지
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• 제43권2호
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• pp.203-229
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• 2005

The purpose of this study was to explore the perceived quality of life of Korean university students'. The perceived quality of life was composed of three dimensions: emotion, cognitive efficiency, and satisfaction. The study results were as follow: 1. Korean university students felt more positive emotions when they spent time for social activities. 2. In the cognitive efficiency, social activities also scored highly of 5 questions, but in the item of "awareness of another person's eye", productive activities were higher. 3. Korean university students were more satisfied with themselves when they spent time for productive activities. However, they were more satisfied with their work itself when the work was social activities. 4. Korean university students' emotions, cognitive efficiencies, and satisfaction were significantly different by socio-graphic variables and context.

• 한국산학기술학회논문지
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• 제16권12호
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• pp.8719-8727
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• 2015

본 연구는 장미농가의 생산효율성을 측정하고, 경영의 비효율성에 영향을 미치는 요인을 파악하기 위한 연구이다. SFA(Stochastic Frontier Analysis) 기법과 DEA(Data Envelopment Analysis) 기법을 사용하여 생산효율성을 측정하였으며, 효율성에 영향을 미치는 요인을 분석하기 위하여 Tobit 회귀 분석을 실시하였다. 먼저, SFA 방법을 통한 생산효율성은 88.4%으로 측정되었으며, DEA 방법에서 불변규모수익(CRS) 모형과 변동수익규모(VRS) 모형을 통해서는 생산효율성이 각각 78.5%와 85.2%로 측정되었다. 특히 두 가지 방법의 생산효율성 측정결과는 각 경영체의 효율성 순위를 동일하게 설명하고 있어 상호보완적이다. 다음으로 Tobit 분석 결과, 투입한 6개의 변수가 모두 효율성에 영향을 미치는 것으로 나타났으며, 종묘비와 제재료비는 (+) 부호를 나타냄과 동시에 회귀계수가 가장 크게 나타나 효율성에 미치는 영향력이 가장 큰 경영 항목으로 분석되었다. 이러한 결과는 장미농가는 종묘비와 제재료비의 투입을 증대시켜 더욱 높은 소득을 창출하는 방식으로 경영 효율성을 증대시켜야 함을 시사한다.

• 기술경영경제학회:학술대회논문집
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• 기술경영경제학회 2002년도 제20회 동계학술발표회 논문집
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• pp.59-89
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• 2002

The rapid diffusion of information and telecommunication (IT) technologies during the recent decennia produced fundamental changes in the economic activity at a global level, resulting in what became coined as the "new economy". However, empirical evidence on the contribution of IT equipment to growth and productivity is at best mixed, with the more or less consistent results on the positive link between the two relating to the United States in the 1990-s. Although the empirical literature on the link between IT investment and economic performance employs a wide variety of methodologies, the overwhelming majority of the studies appears to be employing the assumption of linearity of the IT-performance relationship and predominantly explores the direct nature thereof. In this study we relax both these assumptions and find that the indirect, or aggregate productive efficiency, effects of IT investment are as important as are the direct ones The estimated non-linear nature of the indirect relationship between IT investment intensity and productive efficiency accommodates the concepts of critical mass and complementary (infrastructure) capital offered in the literature. Our key finding is that the world economy′s average level of IT investment intensity remained below the estimated critical mass. Since in this study we developed a methodology that allows one to explicitly measure the critical mass of IT investment intensity, its individual estimation at a country or industrialsector level may help evaluate the extent to which IT investment activity has to be encouraged or discouraged.

• 한국산학기술학회논문지
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• 제15권7호
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• pp.4177-4183
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• 2014

본 연구는 지역전략산업인 광산업을 중심으로 생산성 변화를 추정하고 이러한 변화를 기술변화 요인과 효율성변화 요인으로 분해함으로써 광산업의 생산효율성 향상 방안을 모색한다. 특히 기존의 연구들과 달리 투입최소화와 산출최대화를 동시에 고려하고 아울러 투입요소와 산출물의 잔여를 모두 반영할 수 있는 비방사적 비지향적 맘퀴스트 생산성지수를 분석에 활용한다. 실증분석 결과, 광산업의 생산성은 증가한 것으로 나타났으며, 이러한 생산성 증가는 주로 기술적 효율성 증가에 기인한 것으로 분석되었다. 또한 정부지원사업 수혜 여부와 지리적 입지에 따라 생산성 변화에 통계적으로 유의미한 차이가 있음을 확인하였다. 이와 같은 결과는 정부의 지역전략산업 육성정책이 광산업의 생산효율성 향상에 기여하고 있음을 시사하는 것으로 향후 광산업의 경쟁력 제고에 도움이 되는 실질적인 참고자료로 활용될 것으로 기대된다.