• Journal of Korean Society of Forest Science
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• v.95 no.3
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• pp.268-273
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• 2006

This study analyzed the technological change of Korean sawmill industry affected by change of factor price. An aggregate cost function has been estimated to analyze the technological change in Korean sawmill industry between 1970 and 2003 to the technical bias and scale effect. There was substitution among labour, capital, and material, especially in more elastic relation between labour and capital. In addition, domestic sawmill industry was progressed into structure which is biased to labour saving, and capital and material using because of increase of labour price. Since Korean sawmill industry's technology still exhibits an increasing returns to the scale, the large amount of investment has contributed to productivity growth, and the future productivity growth continually depend on the scale effect for some time.

• Journal of Labour Economics
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• v.26 no.3
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• pp.115-147
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• 2003

This paper scrutinizes the robustness of the profit-sharing findings first employing an original panel data on the Employee Welfare Fund over the period from 1992 to 2000. In examining the effects of profit-sharing schemes on labor productivity, it controls for simultaneity among profit-sharing, production factors, and productivity using both the two-stage least squares procedure and the lagged variable method. The empirical results show that an increase in firm's contribution to the Employee Welfare Fund is associated with capital-embodied and disembodied productivity enhancement, which is both statistically and economically highly significant. The empirical results are in contrast with predictions of both agency and transaction cost theories, and they imply that more tax benefits and financial incentives for expansion of the Employee Welfare Fund should be required to get productivity gains.

• Journal of Korea Technology Innovation Society
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• v.16 no.2
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• pp.391-407
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• 2013

The paper tests the embodiment hypothesis by measuring the technological obsolescence of a specific year (1990)'s technology and investigating the relationship between labor productivity and technological obsolescence. This approach is based on Salter (1969) that emphasizes the economic aspect of technology. We use the rate of economic surplus as the proxy of technological obsolescence for 10 main industries, including food processing, textiles, chemicals, non-steel metals, steels, metal products, machinery, electronics, precision machinery, and transportation equipments. The result shows that the embodiment hypothesis is not accepted for the overall manufacturing sector. However, we found the vintage effect - a positive relationship between technological obsolescence and labor productivity over time - in textiles, chemicals, non-steel metals, metal products, electronics, and transportation equipments. Therefore, the government should support R&D investment as well as capital equipments investment for the industries with large vintage effect.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.16 no.9
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• pp.5897-5905
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• 2015

This paper investigates the differentials in productivity and growth performance between small and medium size and large size firms in Korean manufacturing industries. According to the empirical analysis based on the Mining and Manufacturing Survey of Statistics Korea, this paper finds the following facts. First, the level of contribution of capital deepening on the growth rate of output(value added) is relatively greater in the small and medium size firm group, while the level of contribution of total factor productivity on the growth rate is relatively greater in the large size firm group. Second, the productivity polarization among the firms has increased relatively greater in the large size firm group over the past decade.

• The Journal of the Korea Contents Association
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• v.16 no.11
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• pp.321-329
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• 2016

The purpose of this study is to analyze the impact of R&D investment on productivity growth of the Korean Economy in the New Normal Era. To be specific, this study focuses on the impact of R&D capital, other capitals, and total factor productivity(TFP) on the labor productivity during the three periods: 1970-2014, 1970-1997, and 1999-2014. We found out that the change of the intensity in the R&D capital and other capitals significantly impacted on the change of the labor productivity in Korea. In particular, the estimated coefficients of these variables are higher after the period of the IMF financial crisis than before the crisis. We also estimated the marginal productivity of R&D capital investment in terms of the TFP growth. The estimated coefficients of the variables showed stronger effects after the period of the IMF financial crisis than before the crisis. As a result, the increase of R&D investment has been greatly impacted on the growth of the total factor productivity(TFP) after the IMF financial crisis in Korea.

• Journal of Labour Economics
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• v.32 no.2
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• pp.95-124
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• 2009

In this article, I were trying to analyze the listed manufacturing companies' trend of productivity and the corporate education & training effect after the financial crisis. According to the analysis, the listed manufacturing companies have decreased their productivity since financial crisis, and from such declining trend. jobless growth and a growth without physical and human capital investment has been observed. Furthermore, there is no efficient labor force coordination within the manufacturing industry; In order to analyze the effect of education & training investment on productivity more deeply, I have practiced the dynamic panel data analysis from constructing the micro panel data which consists of company level information 1997~2008. According to the consequences, dynamic panel data analysis solved the problem of the overestimating education & training effect fairly well.

• KDI Journal of Economic Policy
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• v.15 no.4
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• pp.37-68
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• 1993

일반적으로 북한(北韓)의 노동력(勞動力)은 "양질의 저렴한" 것으로 인식되고 있다. 이러한 인식을 근거로 북한의 노동력에 남한의 자본과 기술을 결합시키고자 하는 대북투자사업(對北投資事業)은 활발히 추진(推進)되어 왔으며, 북한의 핵문제가 해결되는 경우 급속히 실행(實行)에 옮겨지게 될 것으로 보인다. 그러나 북한의 노동력이 과연 "양질의 저렴한" 것인가의 여부에 관하여 체계적(體系的)인 검토(檢討)는 이루어진 바가 없다. 본(本) 연구(硏究)에서는 북한의 노동력이 일반적으로 인식되고 있는 바와 같이 "양질의 저렴한" 것인지의 여부, 특히 '양질' 여부에 관하여 그 타당성(妥當性)을 북한 노동력의 교육수준(敎育水準), 작업규율(作業規律), 노동생산성(勞動生産性)의 세가지 측면에서 검토하여 보았다. 그 결과 교육수준이나 작업규율에 근거하여 북한의 노동력이 '양질'이라고 생각하는 것은 무리한 평가라는 결론에 도달하였으며, 가장 설득력이 있다고 여겨지는 노동생산성에 근거한 예상도 실증분석의 결과 타당성이 작은 것으로 나타났다. 자료의 한계상 본(本) 연구(硏究)에서 대상으로 한 것은 북한(北韓)의 평균적(平均的)인 노동력(勞動力)의 질(質)로서 실제 우리 기업이 고용하게 될 노동력의 질과 차이가 있을 수 있다. 그러나 본(本) 연구(硏究)에서 분석한 바와 같이 북한의 노동력이 '저렴'하지도 '양질'도 아닐 수 있으므로 대북투자사업(對北投資事業)의 보다 신중(愼重)한 검토(檢討) 및 대북투자사업시(對北投資事業時) 보다 효율적(效率的) 북한 노동력의 활용방안(活用方案)이 모색(摸索)되어야 할 것이다.

• Journal of the Economic Geographical Society of Korea
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• v.8 no.2
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• pp.237-245
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• 2005

The main purpose of this study is to examine spatial labor productivity differences in manufacturing industries located in the National Industrial Parks. To examine the spatial productivity differences, related parameters were estimated using the data of 2003 Industrial Complex Survey Report prepared by KICC. The results of estimation showed that labor productivity is positively related with plan and equipment investment, living-in period of industry, and negatively related with the number of employee. In a spatial labor productivity, the Chulla-do, Chugchung-do, and Gyeongsang-do provinces were higher than the National Capital area

• Journal of Korean Society of Forest Science
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• v.32 no.1
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• pp.29-35
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• 1976

In order to estimate sawmill productivities, rates of technical change and optimum combination of production factors, Cobb-Douglas production functions have been derived using data obtained from 96 sample mills in Busan-Incheon, southwestern and northeastern areas. The results may be summarized as follows: 1. There is a tendency of expanding average sawmill size in the areas. The horse-power holdings per mill have been increased at the rates of 91 percent in Busan-Incheon, 7.7 percent in southwestern and 16.9 percent in northeastern areas. This implies that the mills around log-importing ports have made rapid development, compared with those in forest regions. 2. The regression coefficients (production elasticities) of the functions for the year of 1967 in the above three areas are much similar each other, but significant differencies are found in the production functions of 1975. In other words, sawmill productivity was mainly restricted by capital deficiencies in all areas in 1967, but this situation was succeeded only by N-E area in 1975. The range of sum of regression coefficients is 1.0437-1.4214, this indicates increasing rates of return to scale. 3. The annual rates of technical changes in B-I, S-W and N-E areas for the observed period are 17.6, 7.6 and 2.2 percents respectively. Busan-Incheon is the only area where labor productivity is higher than that of capital. 4. The best combination of production factors for maximizing firm's profit is subject to the changes of input and output prices. With some assumptions of prices and costs, the optimum levels of power and labor input in B-I, S-W and N-E areas are 57:17, 427:94 and 192:27.

• Journal of Labour Economics
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• v.30 no.2
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• pp.33-60
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• 2007

This study analyzes the trend of the gender wage gap and its sources in the Korean labor market for the years 1985-2004. Following Oaxaca and Ransom (1994), the gender wage gap is composed of the productivity-related gap and non-productivity-related gap (unobserved productivity gap and discrimination). Empirical findings indicate that both the productivity-related gap and non-productivity-related gap have dwindled, while the decline of the former far excelled that of the latter. The non-productivity-related gender wage gap is much larger for married women than for single women, possibly implying a lower unobserved productivity of married women because of their childcare responsibilities. The non-productivity-related gap is also very substantial in the male-dominated occupations as compared to the female=dominated occupations, supporting the existence of network externalities in employment.