Five Moves to Fix Boston's Housing Problem
"...the policy does little to benefit the people it purports to help. In some ways, it actually exacerbates the problem - It reduces the (already limited) supply of new housing and ends up putting heavier demand on the market, causing prices overall to be higher than they otherwise would be.
The policy hurts the city in another way - it lowers property tax revenue. A building with 100 market-rate units might bring in 10-15% more income on an annual basis than one with 15 affordable units, based on my analysis."