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BOK Working Paper No.2017-1, The Effects of Household Debt on Consumption and Economic Growth

Economic Research Institute (+82-2-759-5546) 2017.01.15 5430


Title : The Effects of Household Debt on Consumption and Economic Growth
Authors : Joung Ku Kang(BOK)




This paper discusses the effects of household debt in the aspects of ‘flow effect’ arising in the course of changes in household debt size and ‘stock effect’ occuring due to the level of household loans, and then, empirically analyzes the effects using the Korean time series data and the OECD panel data.
The result of empirical estimation with GMM reveals that the flow effect of household debt facilitates consumption and economic growth while the stock effect hinders them. It is also found that the contribution of the flow effect on raising consumption and economic growth has decreased since 2000, however the contribution of the stock effect on impeding consumption and economic growth has expanded.
The coefficients of flow effect and stock effect may change over time. Since the global financial crisis, the coefficient of flow effect has been scaled down, mainly because of the expansion of household mortgage loans that brought about a reduction in the share of household borrowing for consumption. The coefficient of stock effect has also decreased in size as the burden of household loan repayment was mitigated due to a fall in interest rates on household loans.

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