Write a paragraph explaining the effects of the end of world war i on the u. s. economy

After the end of World War I European countries were in decline, their industrial and agricultural sectors suffered a reduction of more than 30%, causing a very strong impact on the economy and thus forcing these countries to look for loans   and to import products from another country.  In this context of poverty, European countries needed to buy many products and borrow money, in this moment, the United States of America enters as the nation that can meet European needs; at high interest rates, of course.  The US had its territory spared during the war and had a large number of exports and loans of money to Europe, causing its economy to be boosted and its national income doubled.

the answer is migration