SMU Professor of Economics Phang Sock Yong wrote a commentary on the area where the topics "superstar cities", "inequality" and "housing policy" overlap, and how housing policy has been used to mitigate inequality in the context of Singapore, a global superstar city. She noted that Singapore's housing wealth redistribution framework can be interpreted as containing elements of the theories of two economists – Henry George's land value capture tax and Thomas Piketty's progressive wealth tax – in addition to other significant and innovative institutions and policies. She also discussed the evolution of Singapore’s housing system and paid tribute to Mr Lee Kuan Yew.