Property rights were strong. While nationalization committees were set up in France and the United Kingdom, Finland avoided nationalizations. Finnish industry recovered quickly after Second World War. By the end of 1946 industrial output surpassed pre-war numbers. In the immediate post-war period of 1946 to 1951, industry continued to grow rapidly. Many factors contributed to the rapid industrial growth such as war reparations which were largely paid in manufactured products, devaluation of currency in 1945 and 1949, which made dollar rise by 70% against Finish markka and thus boosted exports to the West as well as rebuilding the country which increased demand for industrial products. In 1951, the Korean War boosted exports. Finland practiced an active exchange rate policy and devaluation was used several times to raise the competitiveness of exporting industries.