German monetary economics was at that time heavily influenced by
Chartalism and the
German Historical School, which conditioned the way the hyperinflation was analysed. The hyperinflation crisis led prominent economists and politicians to seek a means to stabilize German currency. In August 1923, an economist,
Karl Helfferich, proposed a plan to issue a new currency, the "Roggenmark" ("rye mark"), to be backed by
mortgage bonds
indexed to the
market price of rye grain. The plan was rejected because of the greatly fluctuating price of rye in paper marks. Agriculture Minister
Hans Luther proposed a plan that substituted gold for rye and led to the issuance of the
Rentenmark ("mortgage mark"),
backed by
bonds indexed to the market price of gold. The
gold bonds were indexed at the rate of 2,790 gold marks per kilogram of gold, the same as the pre-war
gold marks. Rentenmarks were not redeemable in gold but only indexed to the gold bonds. The plan was adopted in
monetary reform decrees on 13–15 October 1923. A new bank, the
Rentenbank, was set up by Hans Luther when he became Finance Minister. During the final stages of hyperinflation, widespread loss of confidence in the mark led people to use alternative forms of exchange. Among these were
commodity-based monies, such as a cigarette-based currency. Cigarettes, due to being easily divisible and internationally acceptable, bought goods that paper marks could not. Although never formally declared as legal tender, cigarettes became widely accepted as a
medium of exchange. The discounting of commercial trade bills was allowed and the amount of Rentenmarks expanded, but the issue was strictly controlled to conform to current commercial and government transactions. The Rentenbank refused credit to the government and to speculators who were not able to borrow Rentenmarks, because Rentenmarks were not legal tender. On 16 November 1923, the new Rentenmark was introduced to replace the worthless paper marks issued by the Reichsbank. Twelve zeros were cut from prices, and the prices quoted in the new currency remained stable. When the president of the Reichsbank, Rudolf Havenstein, died on 20 November 1923, Schacht was appointed to replace him. By 30 November 1923, there were 500,000,000 Rentenmarks in circulation, which increased to 1,000,000,000 by January 1, 1924, and to 1,800,000,000 Rentenmarks by July 1924. Meanwhile, the old paper Marks continued in circulation. The total paper marks increased to 1.2
sextillion (1,200,000,000,000,000,000,000) in July 1924 and continued to fall in value to a third of their conversion value in Rentenmarks. By 1924 one dollar was equivalent to 4.2 Rentenmark. ==Revaluation==