Did late-nineteenth-century U.S. tariffs promote infant industries? After e
arlier failures, the tinplate industry became established and flourished af
ter receiving protection with the 1890 McKinley tariff. Treating producers'
entry and exit decisions as endogenous, a probability model is estimated t
o determine the conditions under which domestic tinplate production will oc
cur. Counterfactual simulations indicate that, without the McKinley duties,
domestic tinplate production would have arisen about a decade later as U.S
. iron and steel input prices converged with those in Britain. Although the
tariff accelerated the industry's development, welfare calculations sugges
t that protection does not pass a cost-benefit test.