• Journal of Labour Economics
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• v.36 no.3
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• pp.29-64
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• 2013

This paper documents the recent changes in wage density and decomposes them. Middle group is found to have shrunk, one-third of which reflects the changes in worker composition. The rest mostly reflects insufficient supply response to the rising skill demand within jobs. The pattern is more pronounced among manufacturing, large and unionized firms, and production workers.

• KDI Journal of Economic Policy
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• v.29 no.1
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• pp.1-39
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• 2007

This study focuses on the possibility that skill-biased technological change is one of the factors for relatively poor employment conditions of the unskilled after the economic crisis. Increasing employment share of skilled workers accompanying with rising wage premium for education since implies that labor demand has shifted toward the skilled. The decomposition of changes in wage share of skilled workers into between-industry and within-industry changes suggests that the increase in the demand for skilled labor has been largely due to within-industry changes, which can be seen as reflecting the effect of the skill-biased technological change. Also the regression results indicate that the employment share of skilled workers has more rapidly increased in the industries with higher ICT (Information Communication Technology) investment intensity since the mid 1990s, hinting to the possibility that skill-biased technological changes may have come from ICT.

• Journal of the Korea Safety Management & Science
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• v.19 no.1
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• pp.63-71
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• 2017

As the demand for automation (or autonmation) or clean workplace has grown, the interest in the knowledge and skill regarding safety is rising in manager duty. Moreover, the importance of severity rate of injury has increased due to the enlargement of industry scale, even safety management area has developed. Thus, it is important that production managers, the core of the line process, realize the safety in their production line, even if a safety manager acts as a staff. However, in the duty oriented National Competency Standard (NCS), the education about the safety duty of production management part is insufficient. According to NCS, it is calculated production managers receive only 6.7% of whole safety education regarding the duty related the safety management for production manager in mechanical industry. However, the ability in safety is more demanded from production managers as the concept of "production and safety" turns into the concept of "production with safety". And then in this paper, we will compare and analyze the safety management duty in Korean NCS and the safety management duty in State Leaders Connecting Learning to Work in US manufacturing industry, in terms of the duty of the production manage in mechanical industry (05). And, we will develop the safety duty education system for production manager, by classifying the safety education in domestic mechanical industry into knowledge education, skill education, and attitude education with using AHP(Analytic Hierarchy Process).