The belief in the need to promote exports is strong and part of Japan's self-image as a "processing nation." A processing nation must import raw materials but is able to pay for the imports by adding value to them and exporting some of the output. Nations grow stronger economically by moving up the industrial ladder to produce products with greater value added to the basic inputs. Rather than letting markets accomplish this movement on their own, the Japanese government feels the economy should be guided in this direction through industrial policy