Charles Mackay was a 19th century Scottish poet, journalist and author who is best known these days for his book Extraordinary Popular Delusions and the Madness of Crowds. He leads off with three of the most famous financial bubbles in history: the Mississippi Scheme, the South-Sea Bubble and Tulipomania. He also writes of fortune-telling, witches and the Crusades.
Fortune-telling remains a mainstay among the financial elite and the lowliest retail investor on the planet alike. The U.S. Federal Reserve Bank has a sort of running fortune-telling tool called GDPNow that takes up-to-date indicators and plugs them into its formula for projecting the current direction of U.S. GDP. GDPNow is revised every few days as new values for its many components become available.
The latest reading as of May 29 is minus 51.2 percent. That's an annualized number that is seasonally adjusted. It's a number that suggests that economic activity may have fallen at least as much since January as it did in the first four years of the Great Depression (1929 to 1933). At the bottom of the depression in 1933 the U.S. economy had contracted by about 30 percent. Unemployment in the United States reached 25 percent. The Dow Jones Industrial average had lost almost 90 percent of its value.