This paper analyzes the long-term evolution of the costs and benefits associated with chaebols or diversified business groups in Korea. Chaebol-affiliated firms in Korea have experienced dramatic changes in their costs and benefits along three time periods (1984-1988, 1990-1995, and 2001-2005)....

Tobin's Q is the most common measurement of firm value and performance. However, estimating Tobin's Q accurately is not easy. Researchers have used book values of debts or assets rather than the market values. We estimate Tobin's Q for listed firms in Korea from 1980 to 2005 based on replacement...