1. How did personal economic decisions of the 1920's set the stag e for the stock market crash in 1929?​

Stock Market

One reason for the boom was because of financial innovations. Stockbrokers began allowing customers to buy stocks "on margin." Brokers would lend 80%-90% of the price of the stock. Investors only needed to put down 10%-20%. If the stock price went up, they became millionaires.During the 1920s, the booming stock market roped in millions of new investors, many of whom bought stock on margin. The 1920s also witnessed a larger bubble in all kinds of credit - on cars, homes, and new appliances like refrigerators. In the years after the 1929 crash, the credit-based In fact, after 1922, the stock market had increased by nearly 20 percent each year until 1929. People bought stocks with easy credit. During the 1920s, there was a rapid growth in bank credit and easily acquired loans. ... This meant companies had to purge their supplies at a loss, and share prices suffered.  

i think it was   tsar alexander ii

where's the