Which economic policy was most successful during the Great Depression?

a. raising taxes
b. bilateral trade pacts
c. establishing import quotas
d. increased government spending

The economic policy that was most successful during the Great Depression is (D) increased government spending.
It is a common view among economists that government spending on the war at least accelerated from the recovery of the Great Depression.
Well, as always, other think that it didn't play a vital role in recovery.