The number of shopping malls is increasing.
The number of people who using shopping malls service is rising.
While products' cost in the malls is decreasing, the demand is increasing.
The shopping malls ' popular is growing.
That would make the number of tiny shop is falling.
So the customer of tiny shop is also shrinking.
That means that the shopping malls business goes up quickly because a lot of people chose to go to shopping Malls more.