what is black tuesday 
black tuesday was oct 29 1929 and it was marked by a sharp fall in the stock market with the dow jones industrial average djia especially hard hit in high trading volume the djia fell 12 one of the largest one day drops in stock market history more than 16 million shares were traded in the panic sell off which effectively ended the roaring twenties and led the global economy into the great depression understanding black tuesdayblack tuesday signaled the end of a period of post world war i economic expansion and the beginning of the great depression which lasted until the beginning of world war ii the united states emerged from world war i as a major economic power but the country s focus was on developing its own industry rather than international cooperation high tariffs were imposed on many imported products to protect nascent industries such as cars and steel agricultural prices fell as european production returned after being shut down during the war and tariffs were imposed to try to protect american farmers as well however their incomes and the value of their farms fell and migration to the industrialized cities accelerated the boom years of the so called roaring twenties were fueled by optimism that the world had fought the war to end all wars and good times had arrived permanently between 1921 and the crash in 1929 stock prices went up nearly 10 times as ordinary individuals bought stock often for the first time 1 this was fueled by lending by brokers that at times reached two thirds of the stock price with the purchased stock serving as collateral income inequality also rose it is estimated that the top 1 of america s population held 19 6 of its wealth 2 the 1929 crashby the middle of 1929 the economy was showing signs of slowing led by declines in purchases of houses and cars as consumers were burdened with debt steel production weakened a few years earlier european production of agricultural goods began to recover following world war i which meant american farmers would lose that market to sell their goods as a result the u s congress passed a series of bills designed to help american farmers by increasing tariffs or prices on imports including agricultural products at the same time news from europe indicated an excellent harvest which meant an increased supply and overproduction pushing commodity prices lower and rattling the markets the u s congress stepped in again and passed the smoot hawley tariff act which not only increased tariffs on agricultural goods but on goods in other sectors as well many other countries had also adopted protectionist policies the impact on global trade was devastating international trade had decreased by 66 from 1929 to 1934 3 in august the federal reserve bank allowed its new york regional board to raise its discount rate 4 the monetary policy move caused central banks around the world to follow suit the london stock market dropped sharply on sept 20 when top investor clarence hatry was jailed for fraud markets gyrated for the next month all of these factors eventually caused the stock market to crash on black thursday oct 24 the market fell 11 at the open heads of the major american banks devised a plan to support the market by buying large chunks of stock and the market closed down just 6 points but by black monday the 28th panic and margin calls spread the market fell 13 and a further 12 on black tuesday in record setting volume 5 efforts led by the financiers and industrialists to support prices could not stem the tide of selling the market lost 30 billion of value in those two days the market hit a 20th century low of 41 22 on july 8 1932 which was a fall of 89 from its high of 381 17 on sept 3 1929 1 economic growth as measured by gross domestic product gdp shrank by more than 36 from 1929 to 1933 the unemployment rate in the united states surged to over 25 as workers were laid off after they had been hired during the boom years 6 it was only after president franklin delano roosevelt was elected that the economy showed signs of taking a turn towards the better among his achievements is stopping the smoot hawley tariffs and establishing the reciprocal trade agreement act in 1934 still a new high wasn t reached until nov 23 1954 