Nearly half of US businesses operating in Shanghai say that they have faced unfair treatment from Chinese regulators, the Wall Street Journal reported. In an annual survey, the American Chamber of Commerce in Shanghai found that 47.7% of 346 respondents felt that regulators favored domestic companies, while 31.3% said that regulators displayed no favoritism. The survey also found that most companies, or 67.7% or respondents, feel China did not advance the cause of intellectual property protection in 2010. China’s indigenous innovation strategy was also highlighted as a cause for concern, with about half of respondents indicating worries about its potential impact. However, just 10% said they had noticed an impact to date.