This paper analyzes the impact of a tariff on sectoral adjustments in an economy which produces two traded consumption goods, one of which is exported, and a non-traded investment good. The importance of sectoral capital intensities is emphasized. In particular, the qualitative dynamic adjustment depends upon the relative capital intensities of the import-competing consumption good sector and the non-traded investment good sector. Sectoral labor allocation effects are analyzed and the long-run effect on aggregate capital accumulation is shown to depend upon the relative capital intensities of the import and export sectors. Temporary as well as permanent tariffs are discussed.