Ludwig von Mises was snubbed by economists world-wide as he warned of a credit crisis in the 1920s. We ignore the great Austrian at our peril today.

Mises's ideas on business cycles were spelled out in his 1912 tome "Theorie des Geldes und der Umlaufsmittel" ("The Theory of Money and Credit"). Not surprisingly few people noticed, as it was published only in German and wasn't exactly a beach read at that.

Taking...