joining us now are the two leading economists, alan blinder and moody's mark zan. >> thank you. >> to the fed's purchase of mortgage-backed securities. which was the most important for the economy. >> it also included the fiscal stimulus. somewhat to our surprise, we didn't know going into the work, at least according to this model, the panoplyia of financial policies, including the things you mentioned and other things were more important qon quantitatively than the stimulus, the tacks rebates of 2008 and so on. >> suzanne: makers, not all of the policies have worked as well. in particular, the loan modifications are not working necessarily. how do we fix housing, do you think? >> well, you're right. i think it's -- as you put it, if you rank the order of the different policy responses, the mortgage foreclosure efforts have been least successful. at this point, i think we need to maintain currently low interest rates, and they need to work through the problems with the foreclosure mitigation plans, and make them work a little better. hopefully we get some jobs, and with that, i think