Many areas of China's economy stand to see change from WTO accession, from agriculture to insurance and banking to telecommunications. Among the sectors affected, the automobile industry, as an old-line heavy industry, seems one of the most open to a global challenge. Since its reorganization in the post-Mao Zedong reform era, China's auto industry has been nurtured in a protectionist environment. Joint venture companies have satisfied domestic passenger car vehicle needs, but price and quality problems have left the industry open to some challenge in a free market post-WTO world.