other developing countries, with only India after 1990 coming close to China's experience. Scholars believe that high rates of investments, especially increases in capital invested per worker, have contributed to China's superior economic performance. China's relatively free economy, with less government intervention and regulation, is cited by scholars as an important factor in China's superior performance compared to other developing countries. Criticism and development issues The government retains monopolies in several sectors, such as petroleum and banking. The recent reversal of some reforms have left some observers dubbing 2008 the "third anniversary of the end of reforms". Nevertheless, observers believe that China's economy can continue growing at rates of 6–8 percent until 2025, though a reduction in state intervention is considered by some to be necessary for sustained growth. However, it has been reported over the years that the GDP figures and other economic data from the Chinese government may be inflated or manipulated otherwise. Officials from central government have admitted that local economic statistics are sometimes falsified, to meet the economic growth targets for personal promotion of local officials, for example. Despite reducing poverty and increasing China's wealth, Deng's reforms have been criticized by the Chinese New Left for increasing inequality and allowing private entrepreneurs to purchase state assets at reduced prices. These accusations were especially intense during the Lang-Gu dispute, in which New Left academic Larry Lang accused entrepreneur Gu Sujung of usurping state assets, after which Gu was imprisoned. The Hu-Wen Administration adopted some New Left policies, such as halting privatizations and increasing the state sector's importance in the economy, and Keynesian policies that have been criticized by some Chinese economists who advocate a policy of deregulation, tax cuts and privatization. Other criticisms focus on the effects of rapid industrialization on public health and the environment. However, scholars believe that public health issues are unlikely to become major obstacles to the growth of China's economy during the coming decades, and studies have shown that air quality and other environmental measures in China are better than those in developed countries, such as the United States and Japan, at the same level of development. The economic reforms were accompanied with a series of political reforms in the 1980s, supported by Deng Xiaoping. However, many of the planned political reforms ended after the 1989 Tiananmen Square massacre. Lack of political reform contributed to the serious corruption issue in China. In