• Communications for Statistical Applications and Methods
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• 제27권4호
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• pp.459-468
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• 2020

We examine the rate of substitution of jobs by artificial intelligence using a score called the "weighted ability rate of substitution (WARS)." WARS is a indicator that represents each job's potential for substitution by automation and digitalization. Since the conventional WARS is sensitive to the particular responses from the employees, we consider a robust version of the indicator. In this paper, we propose the individualized WARS, which is a modification of the conventional WARS, and compute robust averages and confidence intervals for inference. In addition, we use the clustering method to statistically classify jobs according to the proposed individualized WARS. The proposed method is applied to Korean job data, and proposed WARS are computed for five future years. Also, we observe that 747 jobs are well-clustered according to the substitution levels.

• 한국사회복지학
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• 제64권4호
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• pp.233-259
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• 2012

최근 고용없는 성장이 목도되는 가운데, 높은 실업률과 낮은 고용률로 압축되는 청년층 고용문제가 상당히 심각하다. 그러나 고령자의 일자리 부족, 불안정한 노동지위도 우리 사회의 중요한 현안이다. 이를 해결하기 위해 중고령자의 일자리 창출, 정년 연장이 논의되고 있지만 세대간 일자리 전쟁으로 비화되며, 청년층의 일자리 창출 정책과의 형평성으로 인해 정책추진에 어려움을 겪고 있다. 그러나 아직 이에 대한 연구가 충분히 축적되지도 않은 상태에서 문제가 진단되고 정책이 수립되는 것은 바람직하지 않다. 본 연구는 이와 같은 문제의식에 따라 한국을 포함한 OECD 15개국(1990~2010년)의 청년 고용과 중고령자 고용이 대체관계인지 분석하였다. 분석결과 첫째, 중고령자와 청년 모두 2명 가운데 1명도 고용상태가 아닌 것으로 나타났다. 고용위기는 특정 세대의 문제가 아니라, 청년층과 중고령층 모두의 문제인 것으로 볼 수 있다. 둘째, 변인간의 관계를 분석한 결과(패널분석), 청년층 고용과 중고령층 고용은 대체관계가 아닌 것으로 나타났다. 조기퇴직정책을 추진해도 청년층 취업문제가 해결되지 않을 수 있음을 시사한다.

• 한국항만경제학회지
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• 제35권2호
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• pp.37-60
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• 2019

항만연관산업과 최저임금간의 생산성 및 고용효과에 대한 상관관계를 분석한 결과, 그 효과는 매우 미미한 것으로 나타났다. 그러나힝민연관산업의 상용근로자와 임시근로자, 자영업자 및 기타 근로자에 대해서는 다소 차이를 보이고 있다. 즉 상용근로자는 다소 안정적인 반면에, 임시직과 자영업자에게는 다소 부정적인 효과를 미치는 것으로 나타났다. 최저임금위원회에서 최저임금의 인상은 노동시장에서 소득효과와 대체효과 간의 상호작용에 의하여 안정적인 모습을 보이고 있다. 항만연관산업은 최저임금 인상이라는 변수보다 오히려 세계적인 경기불황, 국내 경기의 변동성에 더 영향을 받는 것으로 분석되었다.

• 가정과삶의질연구
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• 제19권2호
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• pp.111-127
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• 2001

The purposes of this study were to investigate the relationships between individuals characteristics (socio-economic status, time pressures, resources related with implementing housework), attitudes toward goods characteristics, and the level of market goods substitution of housework in the domain of foods and clothes. For empirical analysis, the data of the study was collected from 572 married women living in Seoul. Covariance structure analysis were employed for data analysis, using LISREL. The major findings were as follows: 1) Individuals characteristics, attitudes toward market goods characteristics, and the level of goods substitution of housework had causal relationships. 2) Generally, wifes age and resources related with implementing housework were negative predictors of the level of market goods substitution of housework and wifes education, income, time pressures, attitudes toward characteristics of market goods were positive predictors. Wifes employment was a constraint of Korean traditional sauce, clothes repairing service and laundry service purchases, but a facilitator of the level of dining-out.

• 기술혁신연구
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• 제15권2호
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• pp.1-24
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• 2007

In this study, we estimated a CES production function for the Korean economy. We have found in the empirical results that the elasticity of the factor substitution is less than one and that the Korean economy exhibits labor-saving technological progress. In addition, we obtained the regression coefficient of R&D investment on technological change, i.e., the elasticity of R&D investment with respect to the technological change was 0.26% point. It implies that if R&D stock increases by 1%, labor efficiency increases 0.26% point through technological progress which is Hicksian non-neutral. It confirms that innovation-based growth strategy by increasing R&D investment would be effective on the one hand. Some policy consideration on the other might be needed for an increase in employment which is offset by technological progress.

• 가정과삶의질연구
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• 제7권1호
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• pp.119-138
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• 1989

This study attempts to apply its result to decision whether housewives are in the labor market or not by investigating the level of reservation wage of them and the influencing factors on it. The purpose of this study is to analyse the effects by identifying , on the basis of theoretical models, the factors that influence reservation wage, and to predict future state of female employment. 1) The level of reservation wage of housewives showed significant differences by husband's income, household asset, housewife's education level, housewife's age, number of children division of husband in household labor, and by three marketization of housework. 2) The variables which affected reservation wage of housewife independently had influence on it in the following order: Husband's income, education level, age affect positively reservation wage of housewife, and a negative relation has been found between division of husband, level of commodity substitution and reservation wage of housewife. 3) Husband's income, housewife's education level, housewife's age, division of husband in household labor, level of commodity substitution give direct effects on reservation wage of housewife. Education level, age, number of children and family type influenced reservation wage of housewife through level of commodity substitution indirectly.

• 가정과삶의질연구
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• 제17권3호
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• pp.171-186
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• 1999

The purpose of this study is to understand the perception of housework self-responsibility and attitude to paid labor substitution of wife and husband examining empirically characteristics of couple's type classified by a complex of perception and attitude. The data of this study were collected from 83 dual-earner couples and 76 one-earner couples having more than one child younger than 18 and living in Seoul. The major findings are as follow: First Wives perceived housework self-responsibility much higher than husbands regardless of wives' employment status particularly in female-oriented housework such as food- clothing-related and managerial housework. Second Couples expressed considerable reluctancy about paid labor substitution and one-earner couples showede more reluctancy. Third Four couple types were categorized by a complex perception and attitude. The are 'PLS-oriented & Wife responsibility couple' 'PLS-reluctancy & Wife responsibility couple' ' PLS-dependency couple 'Dual responsibility couple' Fourth the characteristics of each type showed difference according to socioeconomic status sex role attitude housework performance.

• 농업과학연구
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• 제35권2호
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• pp.237-245
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• 2008

China's agriculture is changing now, especially in terms of cash farming. Orange farming is one of the main cash crops. This study is to identify the labor utilization of orange farming of farm households in China. The Results are as follows. First, farm size increasing is an essential measure to save labor. Big farm requires less than 20% of labor inputs than that of average size farm. Second, in the aspect of the employment labor, while male labor accounted for the 5% of total labor, female employment labor took up much more, which amounts to almost half of family labor. Third, the average wage of men is almost twice as much as that of women's wage, and it is sharply increasing. Fourth, Chinese farm households put more labor input than Korean farm households in orange production, which is due to the substitution of capital for labor.

• 노동경제논집
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• 제36권1호
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• pp.1-44
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• 2013

이 논문은 한국 노동시장의 수요구조에 관한 기존 연구들을 서베이한 것이다. 한국 노동수요의 특징을 보면 노동과 자본 간에 대체재 관계가 성립하며, 노동을 사무직과 생산직으로 세분해도 대체관계는 변함없다. 대체탄력성의 크기는 0과 1 사이에 있다. 고용과 근로시간은 대체/보완 관계가 명확하지 않다. 법정 근로시간 단축은 실 근로시간을 단축시켰으나 고용은 늘지 않았다. 노동수요 탄력성은 단기에 0.5 미만으로 작다. 기술변화는 1980년대 중반 이후 노동절약적으로 변하였고 1990년대 중반 이후 숙련편향적 성격으로 숙련노동 수요를 늘렸다.

• 가정과삶의질연구
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• 제5권2호
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• pp.45-64
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• 1987

In this study the phenomenon of commodity substitution of housework is approach in the contexts of economic system, patriachal family system and housework-related human resources. the objectives of this study are as follows: (1) To measure the level of commodity substitution of housework in large cities. (2)To investigate the factors influencing commodity substitution of housework. The samples were composed of 982 housewives dwelling in 6 large cities including Seoul. The statistics used for data analysis were frequency distribution, percetile. multiple regression analysis. The major findings are the following; (1) When the housework was divided into two subdomains , in the domain of food the purchase level was for below average while in the domain of clothes, the level was quite higher than average. This result hows that commodity substitution has become more common in the domain of clothes by mass production of clothes on a commercial scale. (2) the level of commodity substitution of housework was influenced by the family attribute variables such as housewife's age, family income. housewife's education, family types, housewife's brought-up regions, presence of sewing machine, employment status of housewife, by one patriarchal norm variable such as home-orientedness, and by tow human resource variables such as importance of housework and household tasks performance competnecy. Among variables house wife's age was the most influential one and such variables as family income, housewife's education, household task performance competency, importance of housework, and home-orientedness were also important. Considering that the influence of home-orientedness demonstrates the importance of patriarchy and that importance of housework and that performance competency also are determined by the patriarchal variables such as sex-role attitude and home-orientedness, we can conclude that Hartmann's theoretical approach with which the changes of housework were explained in the two contexts of economic system and family system is applied to the changes of housework in Korea.