Building shopping malls seems to be the trend as well in some third world countries. From where I come from, Indonesia, there are shopping malls popping up everywhere. My area used to only have 1 decent shopping mall about 10 years ago, now that shopping mall has been expanded 4 times its size, and 4 more new shopping malls have been built since then.
Although not as extreme as the New South China Mall, most of the new shopping malls also have problems leasing the spaces. I wonder if they also have these problems in developed countries.