Abstract
Much effort has been devoted to exploring the consequence of population aging on economic growth. Little attention is paid to its impact on income and wealth inequality. This is critical because inequality matters for the distribution of economic resources and social welfare and is interlinked to economic growth. To fill the void, this paper evaluates whether population aging affects inequality, with special emphasis on wealth inequality and nonlinearity. In a cross-country panel data setting, it finds that top wealth shares follow a U path, i.e., decrease and then increase, in the process of population aging. By contrast, the bottom wealth shares have an inverted-U pattern, i.e., rise and then fall, when a population ages. Similar results are reached for the income share. The data thus suggest that there exists some threshold level of population aging such that any deviations from that level will widen the gap between the wealthy and the poor and increase disparities in wealth and income inequality.
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Data are available upon request.
Notes
Our dataset is available upon request. As for the STATA codes for GMM and GMM quantile estimation procedures as well as panel VAR causality tests, please type “help xtabond2”, “help qregpd”, and “help pvar” in STATA.
Political stability measures the likelihood of political instability and/or politically motivated violence, including terrorism. Control of corruption measures the extent to which public power is exercised for private gain, including both petty and grand forms of corruption, as well as capture of the state by elites and private interests.
The marginal effects and standard errors are calculated through the delta method, based on the sample mean of variables in the regression.
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The author Joyce Hsieh declares that there’s no relevant or material financial interests that relate to the research described in this paper.
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Hsieh, J. Population aging and wealth inequality. Econ Change Restruct 56, 4223–4252 (2023). https://doi.org/10.1007/s10644-023-09551-3
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DOI: https://doi.org/10.1007/s10644-023-09551-3