Democratic Republican Party (South Korea) combination of state and corporate chaebol power pioneered by the party continues to be deeply built into the foundations of the South Korean economic system. Following the promulgation in October 1972 of the Yushin Constitution, which implemented numerous authoritarian centralizing measures such as the direct appointment of a third of the National Assembly by the President, the DRP assumed an unprecedented level of political power. For the next eight years, South Korea was essentially a one-party state ruled by the DRP. After Park's assassination on 26 October 1979 and the seizure of power by Chun Doo-hwan in the coup d'état
Chaebol lines were critical. In the 1950s and early 1960s, chaebol concentrated on wigs and textiles; by the mid-1970s and 1980s, heavy, defense, and chemical industries had become predominant. While these activities were important in the early 1990s, real growth was occurring in the electronics and high-technology industries. The chaebol also were responsible for turning the trade deficit in 1985 to a trade surplus in 1986. The current account balance, however, fell from more than US$14 billion in 1988 to US$5 billion in 1989. The chaebol continued their explosive growth in export markets in the 1980s. By the late 1980s, the