Learning Globe There Is A 12 Years Cycle Of Economic Recession Across The Globe From 1950? Could You Name Them?

There is a 12 years cycle of economic recession across the globe from 1950? Could you name them? - learning globe

There was no recession in 1962, 1974, 1986, 1998

Please explain in their own words, what we now know. Later investigations, to learn and explain what they understand.