Working in partnership with the City’s Controller and Chief Economist, the Blue Sky Consulting Group analyzed the effects of alternative inclusionary housing policies on production of market rate and below market rate housing in San Francisco. The foundation for this work was a regression model that predicts a change in housing production based on changes in prices, production costs, zoning changes and other factors, while taking into account parcel specific data such as maximum building size, setback requirements, and parcel size. Our work was used to inform the decisions of a Technical Advisory Committee that advised the City’s Board of Supervisors about the optimal inclusionary policy.