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But critics are concerned that the unconditional income would lead to less incentive to work. Barry Broad, chair of the California's Employment Training Panel, said the concept is "a surrender to a kind of grim Dickensian view of the future. It's naive to think universal basic income is going to pay the bills. It's going to at best give people a poverty wage," he said.

But blockchain guarantees that data can not be tampered, due to its decentralized and open distributed ledger technology. Therefore, all digital footprints stored in the judicial blockchain system -- authorship, time of creation, content and evidence of infringement -- have legal effect, Wang said.

But now, Chinese consumers can eat cherries from Chile from late autumn to the beginning of spring. Chinese cherries are available from late spring to late summer. And cherries from the United States can be bought from summer to the onset of autumn.

But Yang Delong, chief economist at Shenzhen-based First Seafront Fund, warned investors against emulating shareholders who may have cut their stakes at one go. It would be in their own interest for small investors not to seek some precise timing to reduce their stakes, he said.

But industry insiders and government officials said there is still room for growth in the long term. "Compared with developed countries, there is still huge room," said Wang Bin, an official with the Ministry of Commerce at a recent news conference, citing statistics that 1,000 Chinese people have around 170 vehicles now, while the figure is around 800 in the United States and some 500 to 600 in Europe and Japan.