In 1941 the Independent State of Croatia (NDH), a World War II puppet state of Germany and Italy, was established in parts of Axis-occupied Yugoslavia. The economic system of NDH was based on the concept of "Croatian socialism". The main characteristic of the new system was the concept of a planned economy with high levels of state involvement in economic life. The fulfillment of basic economic interests was primarily ensured with measures of repression. All large companies were placed under state control and the property of the regime's national enemies was nationalized. Its currency was the NDH kuna. The Croatian State Bank was the central bank, responsible for issuing currency. As the war progressed the government kept printing more money and its amount in circulation was rapidly increasing, resulting in high inflation rates.