Captive shoppers in heartlands - like Jurong, Woodlands, and Tampines - are catching the eye of retailers. And analysts say that is why some suburban malls can even command rentals similar to some prime downtown locations. Some of Singapore’s heartland malls have been as big a hit with shoppers as their more upscale cousins in Orchard or the Raffles City area. AMK Hub in Ang Mo Kio is the latest...