Long Depression
In the United States, economists typically refer to the Long Depression as the Depression of 1873–1879, kicked off by the Panic of 1873, and followed by the Panic of 1893, book-ending the entire period of the wider Long Depression. The National Bureau of Economic Research dates the contraction following the panic as lasting from October 1873 to March 1879. At 65 months, it is the longest-lasting contraction identified by the NBER, eclipsing the Great Depression's 43 months of contraction. In the United States, from 1873 to 1879, 18,000 businesses went bankrupt, including 89 railroads. Ten states and hundreds of banks went bankrupt. Unemployment peaked in 1878, long after the initial financial panic of 1873 had ended. Different sources peg the peak U.S. unemployment rate anywhere from 8.25% to 14%.
Great Depression
Many economists have argued that the sharp decline in international trade after 1930 helped to worsen the depression, especially for countries significantly dependent on foreign trade. In a 1995 survey of American economic historians, two-thirds agreed that the Smoot–Hawley Tariff Act at least worsened the Great Depression. Most historians and economists partly blame the American Smoot–Hawley Tariff Act (enacted June 17, 1930) for worsening the depression by seriously reducing international trade and causing retaliatory tariffs in other countries. While foreign trade was a small part of overall economic activity in the U.S. and was concentrated in a few businesses like farming, it was a much larger factor in many other countries. The average "ad valorem" rate of duties on dutiable imports for 1921–25 was 25.9% but under the new tariff it jumped to 50% during 1931–35. In dollar terms, American exports declined over the next four (4) years from about $5.2 billion in 1929 to $1.7 billion in 1933; so, not only did the physical volume of exports fall, but also the prices fell by about 1/3 as written. Hardest hit were farm commodities such as wheat, cotton, tobacco, and lumber.