The recession of 1937. Although unemployment remained high, the economy had steadily improved from 1933 through the first half of 1937. In the late summer of 1937, however, the country entered a deep recession that lasted almost a year.
Answer:
Some simple reasons for this could be that it is easier to manage spheres of influences that to manage a a system of colonies , and it is cheaper. The costs of running, occupying and defending colonies was high. You can get political, diplomatic subordination of weaker nations and trade and economic advantages in a spehere of influence, without having to occupy those countries militarily. This is a simple analysis maybe, but it seeks to highlight some pragmatic aspects.
Explanation:
Because while their government says they are democratic, they are really fascist or strongmen governments
hope this helps
Roaring twenties, that should be it