Many thanks to Professor Ian Cook of Follow the Things fame, for sourcing and sending me a copy of Mallopoly: a subversive game made by Louise Ashcroft.
It is designed to be used at the Westfield Mall, but could also be used in other locations. As the Icelandic tour guide we had on my first visit to Iceland said "Once you've seen a mall, you've seen 'em all....."

There are various other games called Mallopoly...