Question

How did the overall world economy change immediately after World War I?

Question 3 options:

It grew rapidly.
It began to slowly improve.
It sunk into a worldwide depression.
It remained flat.

Answer 1

the 2nd one I hope I think so

Answer 2

America provided the huge amount of loan to Britain From 1915  to help them in their economic revival due to WW I.  It cannot be concluded easily that World War I was the major cause in contributing to the Roaring global economy of 1920 when the US economy boomed.

The long term effect was due to  US involvement in the war which had lead to the Great Depression and the incidence of  WWII. The effects of WW1 on America were phenomenal and wide-ranging comprising the political, economic and social impact the Great War made on the United States.

Unlike the countries of Europe, the factories and home of the US remained intact and not been destroyed.