Estimating the welfare costs of autarky: A sufficient statistics approach

This paper uses the Jeffersonian Embargo enacted in 1807 to estimate the welfare costs of autarky. I use an Armington trade model to compute the welfare losses using two sufficient statistics: the share of expenditures on domestic goods and the elasticity of substitution between domestic and imported goods. I use historical data from 1792 to 1807 to estimate the Armington elasticity, using import tariffs as instrument for relative prices. The empirical findings suggest welfare losses of 2.83–8.14% of real income.