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"Experience has shown disparities exist in the enforcement of tobacco control among different areas in China where such regulations have been adopted. In the more developed areas law enforcement is generally better," he said.

"Demand for investment was quite hot in 2016, 2017 and the first half of 2018 ... but such demand has ceased to exist, and I don't think it will come back in 2019."

"Due to COVID-19 and social distancing requirements, shoppers were more purposeful in their in-person Black Friday shopping, causing significantly less crowds than we've seen in the past," said Brian Field, senior director of global retail consulting at Sensormatic. "This was compounded by retailers not offering as many in-store doorbusters and the increasing adoption of e-commerce."

"Development of new energy cars will help tackle the problems of environmental pollution and energy shortage," Gu said.

"Decisionmakers of the companies ought to have clear minds about the markets they are in, and make timely adjustments if there exist any weak point in management structure," said Bai Ming, a researcher with the Chinese Academy of International Trade and Economic Cooperation.