Very skeptical of any article that begins with "The truth behind..." Also, a little annoyed by the authors misused of "underground" here -- these malls are not underground at all, and are often far more popular than the 'real' shops.
I was trying to give a real straight forward look at these markets.
The markets I'm talking about are underground in both senses of the word, if you look at the first pic you will see you actually have to go underground to get inside.
Maybe were talking about different places as there are certainly touristy malls similar to this but they are a waste of time for business use.