Every country began cutting imports, with the result that world trade spiraled downward, as the "Kindleberger spiral" demonstrates. The total imports of 75 countries declined from $3.0 billion in early 1929, shrinking every quarter to a low of $944 million in spring 1933.<ref> Charles Kindleberger, ''The World in Depression 1929-1939'' (1986), p 170</ref> The U.S. made matters worse with the Smoot-Hawley tariff of 1933, which restricted imports into the US. Canada, Britain, France and other countries retaliated by reducing their imports from the US. | Every country began cutting imports, with the result that world trade spiraled downward, as the "Kindleberger spiral" demonstrates. The total imports of 75 countries declined from $3.0 billion in early 1929, shrinking every quarter to a low of $944 million in spring 1933.<ref> Charles Kindleberger, ''The World in Depression 1929-1939'' (1986), p 170</ref> The U.S. made matters worse with the Smoot-Hawley tariff of 1933, which restricted imports into the US. Canada, Britain, France and other countries retaliated by reducing their imports from the US. |