A search for leading sectors over the business cycle: The case of Korea

This paper studies the sectoral mechanism of shock propagation in business cycles by performing a case study. After we transform business survey indices of different industries into comparable metrics, we trace and compare them before and after reference dates. From these observations, we show that manufacturing industry leads the peak and the trough of the most recent business cycle in Korea; and six sectors are major players in manufacturing industry, i.e. 'food products and beverages,' 'chemicals,' 'machinery,' 'motor vehicles, etc.,' and 'basic metals,' and 'fabricated metals.' In conclusion, the heavy and chemical sectors may be the key to understanding recent business cycles in Korea.