I thought the article was weak.  There was barely a change in displacement with new market rate housing vs not.<p>My biggest issue is the highway theory - build more lanes, commute time is shorter, more people drive, purpose defeated.  Here build more market rate housing, prices fall, more people move in that would have loved elesewhere in bay area, prices rise.  Purpose defeated.<p>I like projects that include percentage of units to be affordable, rent control, and programs to build on surplus public land for affordable housing.<p>Beyond that not sure what else they can do.  At end of day government only has so much they can subsidize.  Unless they start building homes underground or on the bay...