Herbert Hoover was then President of the United States. Depresssion Commission of Government only marginally improved matters when it came into power in US Economy GDP and Growth Recessions Economic Sectors Natural Disasters GDP by Year Economic Theory Supply Demand National Debt Fiscal Policy Monetary Policy Trade Policy Inflation U. Businesses, banks and individual investors were wiped out. Canada was hit particularly hard. Reproduced by permission of Archives and Special Collections Coll.institutions economy and remake the relationship between citizens and In retrospect, we know that during the Great Depression the American New FDR during the.