BEIJING - In the 1980s, affluent people from Hong Kong traveled to neighboring Shenzhen in South China's Guangdong province to buy vegetables and food because they were much cheaper.

Now, the tide has turned and some Shenzhen residents are buying their daily necessities in Hong Kong.

They spend more time on the road than they do strolling neighborhood vegetable stalls, but, due to the surging prices on the mainland, they still think the trip is worthwhile.