횡단면 자료를 이용한 가구소비 결정요인에 관한 연구 - 유동성 제약과 가구별 특성을 중심으로 (Exploration into the Determinants of Household Consumption: Liquidity Constraint and Family Characteristics)

KDI Journal of Economic Policy 2005, 27(1) 1-38

39 Pages Posted: 29 Apr 2016

See all articles by Seok-Kyun Hur

Seok-Kyun Hur

Korea Development Institute (KDI)

Date Written: June 30, 2005

Abstract

Korean Abstract: 무를 판별하는 기존의 연구와는 달리 유동성제약의 강도를 파악하는 데 초점을 맞춤으로써 소비함수 추정식의 설명력을 획기적으로 높일 수 있었다. 유동성제약의 강도는 인적자본의 현재가치를 가구별 특성의 함수로 상정한 후 그 가치가 자본시장에서 과소평가되는 정도를 살펴봄으로써 측정된다. 이렇듯 유동성제약의 강도를 구분하는 추정방식은 현실에 존재하는 여러 형태의 자산들을 유동성을 기준으로 하여 세분할 수 있도록 도와준다. 끝으로 본 연구에서는 사용된 소비함수 추정식을 이용하여 외환위기 이후 우리나라 유동성제약의 완화 경향을 확인하고 이에 따른 소비불평등도의 감소를 횡단면 분산분해방식을 이용하여 같은 기간의 소득불평등도 증가 및 가구특성 변화 현상과 분리하여 논의한다.

English Abstract: Our paper aims to estimate a household consumption function in the presence of liquidity constraints as well as household characteristics. Empirical findings from a Korean cross-sectional data (National Survey of Household Income and Expenditure) reveal that several family characteristics, such as household size, number of working members, children in school, and educational level and age of the household head, turn out to be critical determinants of household consumption. Especially, the influence of household size on consumption decision is shown to be highly significant, not only indirectly through its impact on household income, but also directly by affecting the household's preference for consumption itself. While, the other family characteristics primarily influences household income. Our paper distinguishes itself from existing literature in that it greatly improves the explanatory power of the estimated household consumption function by measuring the degree of the liquidity constraint rather than simply identifying its presence. Based on the assumption that the present value of human capital is a function of household characteristics, the degree of the liquidity constraint is represented by the underestimated portion of the human capital. Such a method of implementing the liquidity constraint is useful in treating various types of assets according to their liquidity. Finally, our estimated household consumption function is applied to decompose cross-sectional variances of consumption inequality. The analysis confirms that the overall alleviation in liquidity constraints in Korea after the 1997 currency crisis reduced consumption inequality despite the worsening of income inequality and changes in the demographic composition of family characteristics during the same period.

Note: Downloadable document is in Korean.

Keywords: 유동성제약(Liquidity Constraint), 가구별 특성(Family Characteristics), 가구소비(Household Consumption)

JEL Classification: D11, D12, E21

Suggested Citation

Hur, Seok-Kyun, 횡단면 자료를 이용한 가구소비 결정요인에 관한 연구 - 유동성 제약과 가구별 특성을 중심으로 (Exploration into the Determinants of Household Consumption: Liquidity Constraint and Family Characteristics) (June 30, 2005). KDI Journal of Economic Policy 2005, 27(1) 1-38, Available at SSRN: https://ssrn.com/abstract=2770967

Seok-Kyun Hur (Contact Author)

Korea Development Institute (KDI) ( email )

263 Namsejong-ro
Sejong-si 30149
Korea, Republic of (South Korea)

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