Did Hayek repudiate his own theory of business cycle?

This bachelor thesis answers the question, whether F. A. Hayek repudiated his own theory of business cycle by abandoning his previous criticism of stabilization of the price level. This paper introduces Hayek's business cycle theory as the part of the positive theoretical analysis, so its conclusion does not have to be also proposal for monetary policy. Hayek perceives money neutrality as a theoretical ideal, which cannot be achieved in the real world. Later, he also introduces an alternative aim of monetary policy -- the stability of the purchasing power of money. The publication Denationalisation of Money is an instruction for achieving this goal and so it is not in conflict with Hayek's business cycle theory. The relation between stability of purchasing power and smooth progress of the economy is substitutional and only competition among currencies will show, what type of mix do people prefer. Hayek's later declaration signifies that his business cycle theory is not able in itself to explain disasters such as the Great Depression.