We document and attempt to explain the observation that automobile insurance premiums vary dramatically across local markets. We argue high premiums can be attributed to the large numbers of uninsured motorists in some cities, while at the same time, the uninsured motorists can be attributed to high premiums. We construct a simple noncooperative equilibrium model, where limited liability can generate inefficient equilibria with uninsured drivers and high, yet actuarially fair, premiums. For certain parameterizations, an optimal full insurance equilibrium and inefficient high price equilibria with uninsured drivers exist simultaneously, consistent with the observed price variability across seemingly similar cities.
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Paper provided by Federal Reserve Bank of Minneapolis in its series Staff Report with number
139.
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Fredrik Carlsson & Dinky Daruvala & Olof Johansson-Stenman, 2005.
"Are People Inequality-Averse, or Just Risk-Averse?,"
Economica,
London School of Economics and Political Science, vol. 72(3), pages 375-396, 08.
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