its been even longer than since 1970.
since 1949, the economy has been astronomically better under democratic presidents than republican ones. GDP, job growth, interest rates, unemployment, wages, inflation, income, etc. etc. etc. you name it.
the GOP somehow fleecing much of the general public into believing that they're better at the economy is one of the greatest con jobs in the history of this country.
Besides the pronounced superiority of macroeconomic performance under Democratic presidents, the fruits of economic growth are also distributed substantially more equally under Democratic presidents.
epiaction.org