The focus on systems of tenure favourable to the urban poor (temporary occupancy rights, lease agreements, as well as free-hold title) has the added advantage to provide a realpolitik approach to upgrading.
关注有利于城市贫民的住房的使用权制度（临时居住权、租约以及永久性所有权），有更多的好处，能够为城市改造提供现实政治的做法。