The relationship between income inequality and aggregate saving: an empirical analysis using cross-country panel data

Jaewoon Koo and Yunxing Song

Applied Economics, 2016, vol. 48, issue 10, 892-901

Abstract: If the rich save more than the poor, an increase in income inequality raises aggregate saving. We investigate whether income inequality is positively related to aggregate saving ratio by estimating a fixed-effect model based on a panel data of 48 countries for the period 1991--2010. We find evidence that aggregate saving ratio increases with income inequality using various inequality measures. In particular, the effect of income distribution on saving is greater and statistically more significant with in financially developed, rich and OECD countries. It suggests that the rich save much more than the poor under advanced financial system and in a rich country. We also find that the relationship between income inequality and saving ratio is closer in the 2000s than the 1990s. This finding may result from financial development and the high income level in the 2000s.

Date: 2016
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DOI: 10.1080/00036846.2015.1090548

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