RousseauX
Donor
effective corporate tax rates takes into account things like excess profit tax: effective corporate tax rate basically calculates tax rate after all additional taxation + loophole/exemption/accounting tricks in a complex tax system. It's much better way to look at effective tax rates than picking out individual pieces of tax legislation and judge based on them.Rousseaux,
You are not counting the excess profits tax. Top corporate tax rate during WW2 was either 90 or 95%. These went away after the war. They increased taxes during the Korean War. These went away in 1953. Please note that during the roaring boom of the 1950s there were three recessions in 10 years.