We document a clear increase in Swedish earnings inequality in the early 1990s. Inequality in disposable income and earnings net of taxes and transfers also increased, but much less than the increased inequality in pre-government earnings. These different developments are most likely explained by the generous Swedish welfare system. Consistent with these observations, we see no clear trend in consumption inequality. We also estimate stochastic processes for household earnings. A simple random-walk process captures much of the life-cycle dynamics. But we find clear evidence that the true earnings process is not a random walk. We demonstrate that some estimation methods result in severe upward bias in the estimated volatility of permanent shocks if serial correlation in temporary shocks is ignored. Our estimation results show that the increase in earnings inequality is almost entirely driven by an increase in residual earnings inequality. Moreover, this increase was mostly generated by an increased volatility of persistent shocks.
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Length: 57 pages Date of creation: 20 May 2009 Date of revision: Handle: RePEc:hhs:hastef:0720
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Find related papers by JEL classification: D31 - Microeconomics - - Distribution - - - Personal Income and Wealth Distribution D33 - Microeconomics - - Distribution - - - Factor Income Distribution E24 - Macroeconomics and Monetary Economics - - Macroeconomics: Consumption, Saving, Production, Employment, and Investment - - - Employment; Unemployment; Wages; Intergenerational Income Distribution J31 - Labor and Demographic Economics - - Wages, Compensation, and Labor Costs - - - Wage Level and Structure; Wage Differentials
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