Why was there an economic crisis in Germany after the First World War?

Germany suffered heavy losses of life and property in the First World War. After the war many soldiers became unemployed. Trade and commerce were also ruined. The workmen were thrown out of employment. In 1929, there was, however, a great slump in Europe called the Great Depression. It affected Germany also. Germany was in the grip of unemployment and starvation. The prices rose and value of money declined. The Republic failed to solve the economic crisis.