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Idiosyncratic Risk, Aggregate Risk, and the Welfare Effects of Social Security
We ask whether a pay-as-you-go financed social security system is welfare improving in an economy with idiosyncratic productivity and aggregate business cycle risk. We show analytically that the whole welfare benefit from ...
Social Security in an Analytically Tractable Overlapping Generations Model with Aggregate and Idiosyncratic Risk
When markets are incomplete, social security can partially insure against idiosyncratic and aggregate risks. We incorporate both risks into an analytically tractable model with two overlapping generations. We derive the ...
Secular Stagnation? Growth, Asset Returns and Welfare in the Next Decades: First Results
Ongoing demographic change will lead to a relative scarcity of raw labor to the effect that output growth will be decreasing in the next decades, a secular stagnation. As physical capital will be relatively abundant, this ...