• The Korean Journal of Applied Statistics
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• v.17 no.1
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• pp.13-26
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• 2004

According to economic growth theory, location configuration of business enterprises engaged in specific industries has spatial affinity. In this research we defined industrial concentration index to measure industry agglomeration using the characteristics of dispersion parameter of negative binomial distribution, and used the industrial concentration index to examine aspect of spatial configuration change. We utilized Census on Basic Characteristics of Establishments of 1995 and 2000 to deduce industrral concentration indices of 7 knowledge-based industries and 9 strategy-based industries of Choongbuk Province and analyzed the aspect of spatial configuration change.

• Journal of Navigation and Port Research
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• v.29 no.5 s.101
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• pp.431-437
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• 2005

In korea, Freight generation models developed in korea were estimated by spatial unit method which predict freight flow by traffic zone. But it is difficult to predict freight generation using these models, because there are the difference of the totality method of sampling data on freight volume and the variability of the variables by these models on each case study, This study developed new estimation model to predict freight flow which is generated from each company using the characteristics of each company such as the freight outbound & inbound volume, the number of employee, sales, gross area, land area. This model is simpler than the that of spatial unit and can apply to the other region. The subjects of study were companies in metropolitan area and types of model were exponential regression models. The adequate explanatory variable in the models were sales. this study have a uniqueness apply micro research method to estimate freight generation not use spatial unit method but use flow unit method by each company unit.

• Management & Information Systems Review
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• v.37 no.1
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• pp.123-138
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• 2018

In this paper, we use panel dataset from Korean linked worker-firm to analyse the effects of the workforce age structure on the productivity or labor costs. We measure 'labor productivity' as added value per capita, 'cost of labor' as labor cost per capita and estimate a dynamic panel model to study the effects of the workforce age structure on the productivity or labor costs. Empirical analysis results show that the workforce age structure is positively related to productivity and labor costs, but only up to the aged of 35-39. That is, we find that an increase in the proportion of younger workers or elder workers rather than the aged 35-39 has a negative effect on productivity and labor cost. In particular, the difference between the estimation coefficient of productivity and labor cost when the share of workers aged 50 or older is increased instead of the aged 35-39 is higher than the difference between the estimation coefficient of productivity and labor cost when the share of workers aged 30 or younger is increased instead of the aged 35-39. Our results exhibit that it is reasonable for firms to worry about declining productivity of elderly workers, whereas firms already used older workers efficiently, such as by adjusting their labor costs.

• KDI Journal of Economic Policy
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• v.25 no.2
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• pp.3-53
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• 2003

Using the plant level panel data on Korean manufacturing during 1990-98 period, this study tries to assess the role of entry and exit in enhancing aggregate productivity, both qualitatively and quantitatively. Main findings of this study are summarized as follows. First, plant entry and exit rates in Korean manufacturing seem quite high: they are higher than in the U.S. or several developing countries for which comparable studies exist. Second, in line with existing studies on other countries, plant turnovers reflect underlying productivity differential in Korean manufacturing, with the "shadow of death" effect as well as selection and learning effects all present. Third, plant entry and exit account for as much as 45 and 65 percent in manufacturing productivity growth during cyclical upturn and downturn, respectively. The findings of this study show that the entry and exit of plants has been an important source of productivity growth in Korean manufacturing. Plant birth and death are mainly a process of resource reallocation from plants with relatively low and declining productivity to a group of heterogeneous plants, some of which have the potential to become highly efficient in future. The most obvious lesson from this study is that it is important to establish policy or institutional environment where efficient businesses can succeed and inefficient businesses fail.

• Journal of Korea Society of Industrial Information Systems
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• v.13 no.1
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• pp.76-86
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• 2008

This paper estimates the TFP in IT manufacturing (total factor productivity) by employment size of establishment and analyses the determinants of it. And the panel data is consisted of time series and cross section data of 4 employment size of establishment over $1990{\sim}2004$. During the period from 1991 to 1997 TFP increased positively irrespective of the employment size of establishment, but from 1998 to 2004 TFP increase rate turned negative except large size(more than 300) of establishment. TFP assume macro variables and policy variables as the determinants of IT manufacturing TFP. The analysis of whole size of establishment shows that sales growth rate is significantly positive, which makes us conclude that there is a teaming by doing effect and economy of scale. But some variables(i.e. IT capital stock, policy financing, and openness etc.) are significant in only a few models. So there may be different effect by employment size of establishment. In TFP determinants analysis by employment size of establishment, we find that coefficients of policy financing and openness variables are significantly positive. The larger employment size of establishment is, the larger scale economy is. And for large size(more than 300) establishment, IT capital stock helps propel the increase of the productivity.

• Survey Research
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• v.5 no.1
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• pp.93-101
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• 2004

In business survey, cut-off sampling is usual, The contribution from cut-off part of the population is at least small in comparison with the remaining population. In this case, part of the target population is excluded from the selection and parameter estimations are only based on Take-all and Take-some stratum. It may be tempting not to use resources on enterprises that contribute little to the overall results of the survey. And this reduces the response burden for these small enterprises. But, the size of cut-off stratum has been increased as a way to manage reduced budgets. This leads to additional bias. In this study, the population have been separated as three stratum, cut -off, take-some, take-all, and we will estimate cut-off part using auxiliary variable.

• 프린팅코리아
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• v.9 no.2
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• pp.46-49
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• 2010

통계청이 최근 발표한 '2008넌 기준 사업체기초통계조사 보고서(9차 개정)'에 따르면 1인 이상 전국 인쇄업 및 인쇄관련 산업의 총 인쇄물 생산액은 2007년(8조8306억8208만2천원) 대비 8.0% 증가한 9조5323억4728만8000원으로 집계됐다. 신문 특수인쇄물을 포함하면 15조원에 이를 것으로 추정된다. 한편 2008년 현재 등록된 1인 이상 총 인쇄업 및 인쇄관련 산업의 사업차는 1만 6709개 사로 2007년도의 1만7767개 사보다 5.9% 감소한 것으로 집계됐다. 종사자도 2007년도의 7만5231명보다 4.7% 감소한 7만1716명을 기록했다. 그리고 종사자 10인 이상 인쇄 및 인쇄관련산업 사업체 수는 1316개사로 종사자는 2만9849명이며 생산액은 3조9674억7900만원으로 집계됐다.

• Journal of Digital Convergence
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• v.13 no.12
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• pp.1-12
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• 2015

This study is to investigate the influence of start-up factors and self-efficacy on the economic performances of the microenterprise. While the existing studies focused on start-up factors, this study has the meaning that it includes self-efficacy, the psychosocial factors, divides the economic performances by the profit and the number of employees. For this study, 322 copies of answered questionnaires were taken as the data to analyze. As the results of analysis business type, experience of start-up, period of operation, start-up fund and self-efficacy had the significant meaning out of the profit and it was checked out that business type, fund and self-efficacy influenced on the employees. This study discussed the policy and practical suggestion to raise the performances of microcredit based on these results.

• 프린팅코리아
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• v.12 no.5
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• pp.62-65
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• 2013

세상은 변화하고, 모든 생물은 생로병사를 경험한다. 산업과 사업체도 이러한 규칙에서 예외 일 수 없다. 하지만 동식물과는 분명히 다른 측면이 있다. 일반적인 생물은 생로병사의 원 칙을 거역하거나 거스를 수 없지만, 산업과 사업체는 인프라의 혁신과 경영자의 노력에 의해 수명의 단축을 극복하고, 부활의 역사를 쓸 수 있기 때문이다.

• 프린팅코리아
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• v.11 no.10
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• pp.86-89
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• 2012

통계청이 최근 발표한 사업체기초통계조사에 따르면 2010년 현재 10인 이상 인쇄 및 관련산업의 사업체는 1342개사로 2009년도의 1322개사보다 2% 증가한 것으로 나타났다. 종사자도 2009년도의 2만9987영보다 1.5% 증가한 3만437명을 기록했다. 생산액은 2009년의 4조555억8천만원보다 9.8% 증가한 4조4528억6천만원으로 집계됐다.