successor Hua Guofeng. Although he never became the head of the party or state himself, Deng was in fact the Paramount Leader of China at that time, his influence within the Party led the country to significant economic reforms. The Communist Party subsequently loosened governmental control over citizens' personal lives and the communes were disbanded with many peasants receiving multiple land leases, which greatly increased incentives and agricultural production. This turn of events marked China's transition from a planned economy to a mixed economy with an increasingly open market environment, a system termed by some "market socialism"; the Communist Party of China officially describes it as "socialism with Chinese characteristics". China adopted its current constitution on 4 December 1982.
The death of pro-reform official Hu Yaobang helped to spark the Tiananmen Square protests of 1989, during which students and others campaigned for several months, speaking out against corruption and in favour of greater political reform, including democratic rights and freedom of speech. However, they were eventually put down on 4 June when PLA troops and vehicles entered and forcibly cleared the square, resulting in numerous casualties. This event was widely reported and brought worldwide condemnation and sanctions against the government. The "Tank Man" incident in particular became famous.
President Jiang Zemin and Premier Zhu Rongji, both former mayors of Shanghai, led the nation in the 1990s. Under Jiang and Zhu's ten years of administration, China's economic performance pulled an estimated 150 million peasants out of poverty and sustained an average annual gross domestic product growth rate of 11.2%. The country formally joined the World Trade Organization in 2001.
Although rapid economic growth has made the Chinese economy the world's second-largest, this growth has also severely impacted the country's resources and environment. Another concern is
