Shift from Input-based Growth to Productivity-based Growth in Korean Manufacturing Industry

The Korean economy has entered a period of relatively sluggish growth after experiencing very dynamic and high economic growth since the 1970s. The recent growth rate has been around 3 percent, which is similar to that in many advanced countries. According to growth accounting, economic growth is possible because of input increases and productivity increases. Productivity growth is much more important than input increases for long-term economic growth. We investigated whether there was a structural break in the Korean manufacturing industry and whether the main factor contributing to economic growth shifted from input to productivity. Using various econometric methods, we tested this question and found some interesting results. First, there was an important change in the 1990s, and the productivity trend seemed to show a big structural break at that time. Second, an input increase was the main factor contributing to economic growth before the break and productivity became more important after the break. Third, there was also a major change in the relationship between international trade and productivity.