One result of the smoot-hawley tariff act of 1930, which increased tariffs on imports to the united states, was that

As a result of the Smoot-Haley Tariff Act other countries placed tariffs on American exports in retaliation. With more taxes on exports, trading became more difficult. The impact of the great depression grew even more evident as the absence exports and profits led to unemployment.

Hope this helps, good luck.

They said that the world was flat