Extraordinary Popular Delusions and the Madness of Crowds is an early study of crowd psychology by Scottish journalist Charles Mackay, first published in 1841 under the title Memoirs of Extraordinary
"Night wind hawkers" sold stock on the streets during the South Sea Bubble. (The Great Picture of Folly, 1720)
Speculation
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In finance, speculation is the purchase of an asset with the hope that that asset will become more valuable in a brief amount of time. The term can also refer to short sales, in which the speculator h
1914 billboard criticizing speculation on land, which cites Henry George
Speculation usually involves more risks than investment.
Assorted United States coins