A reformed housing finance system should first and foremost put the risk and rewards of mortgage lending in the hands of “private actors,” with the government playing a key role to reduce the impact of the inevitable financial-market failures, “especially when their failures are exacerbated in a cyclical downturn,” an Obama administration official noted this week. Speaking at an Urban Institute event, James Stock, a member of the Council of Economic Advisers, outlined the administration’s central theme of “cyclical resilience” or the need for the mortgage finance system to provide liquidity at “reasonable rates” during both good and bad times. “A cyclically resilient housing finance system provides...