Answer:
Banking panics and monetary contraction
The gold standard,
Decreased international lending and tariffs.
The stock market crash of 1929
Step-by-step explanation:
Banking panics and monetary contraction:
A banking panic arises when many depositors simultaneously lose confidence in the solvency of banks and demand that their bank deposits be paid to them in cash.
The gold standard:
The gold standard is a monetary system in which paper money is freely convertible into a fixed amount of gold. In other words, in such a monetary system, gold backs the value of money. The U.S. Constitution in 1789 gave Congress the sole right to coin money and the power to regulate its value.
Decreased international lending and tariffs:
Many economists have argued that the sharp decline in international trade after 1930 helped to worsen the Great Depression, and many historians partly blame this on the American Smoot-Hawley Tariff Act (enacted June 17, 1930) for reducing international trade and causing retaliatory tariffs in other countries.
The stock market crash of 1929:
The Wall Street Crash of 1929, also known as the Great Crash, was a major American stock market crash that occurred in the autumn of 1929. It started in September and ended late in October, when share prices on the New York Stock Exchange collapsed.