Many blacks moved from the south to northern cities during world war ii, looking for employment. after the war, a number of them lost their jobs. why did this happen? factory owners did not want minorities working for them. corporations would not hire blacks unless forced to do so. companies scaled back production during the postwar years. too many businesses went bankrupt following the war.

During times of war, some businesses may wither, others may flourish. The market for weapons, perhaps, would have a booming sales performance. This would attract people to come and work for them instead because they would need labor force. However, after the war has died down, people will stop buying these goods. It's time for them to rebuild their businesses. They would have to cut off expenditures to allocate for rebuilding. The easiest pool of expenditures for company owners are the wages. So, as a result, they would lay off workers. In the worst case scenario, businesses would have no way of paying the workers because they would go bankrupt.

Therefore, the answer is: Too many businesses went bankrupt following the war..

The answer is monsoons.