Editor's note:

China is clamping down on monopolistic activities in a wide range of industries, using its six-year-old antitrust law. But recent cases of well-known multinationals, including Microsoft Corp, Qualcomm Inc, Mercedes-Benz and BMW, have made some industry insiders wonder if the country might be using the law to suppress overseas enterprises' Chinese profits.

Will more multinationals face monopoly investigations in the world's second-largest economy? Is China's antitrust law being used properly? And will law enforcement agencies pose higher penalties for monopolistic behavior?