What industries were struggling during the 1920s?

What economic system existed in Europe during the Middle Ages? What is a good research essay topic on poverty? What form of government is closest to a pure market economy? What began to change the economy in 1880? How does socialism differ from capitalism? Why mining is so important? If the Federal Reserve decreases the reserve rate from 5 to 2.5 how does this affect the amount of money that would result because of fractional-reserve banking from an initial deposit into a bank? What do demographic data on birthrates and immigration indicate? What are the factors affecting Inventory? Strikes in which two industries in 1946 threatened the economy of the US? What are 5 things we import and export from and to other countries? What was 500000 dollars worth in 1963? How many businesses are successful? How does the Federal Reserve use which of the following to regulate the nation's money supply? Is not one of the alternatives for modernization and reform for the Social Security system? What is the value of 1930 buffalo nickel? Cost Of Living Calculator? How much is 100 Lear equal in US dollars? What is a capitalist philosophy? In a special order situation that involves using existing idle capacity opportunity costs are zero?