"Schacht revealed that it was the privately-owned Reichsbank, not the German government, that was pumping new currency into the economy. Like the U.S. Federal Reserve, the Reichsbank was overseen by appointed government officials but was operated for private gain. What drove the wartime inflation into hyperinflation was speculation by foreign investors, who would sell the mark short, betting on its decreasing value. In the manipulative device known as the short sale, speculators borrow something they don't own, sell it, then "cover" by buying it back at the lower price. Speculation in the German mark was made possible because the Reichsbank made massive amounts of currency available for borrowing, marks that were created with accounting entries on the bank's books and lent at a profitable interest. When the Reichsbank could not keep up with the voracious demand for marks, other private banks were allowed to create them out of nothing and lend them at interest as well.7"