Which factor played a role in the united states enjoying economic prosperity during the roaring '20s?

The answer is: The United States had not incurred high levels of foreign debt during World War I.

All of the expense that occurs during the war must be paid to the losing country (i.E germany) and this usually caused a huge debt for the country. Since united states was on the winning side, it can still continue its economic growth at a healthy rate. this contribute to the economic prosperity during the roaring 20s.

good question. i'll be looking into that. (this is a joke sir)

what are the statements.?