hamid atai said that the process of policy making is a complex case from the stage of diagnosis and prescription of different institutions to play a role. in order to reach the initial result of what we set as our goal, you have to examine each policy in general separately , but if i want to talk about this general indicator that shows that we did not understand the housing crisis correctly , i did not understand it correctly. and solution solutions of the first chapter i would not like to point out that ownership means that households have access to private housing, which was supposed to increase in different periods among iranian households. it has a message for us that we were successful at least in our main goal. this shows that expertise is at least one of the factors in diagnosing and prescribing good policy. if we look at it from this perspective, expertise could have been experts were the best if the expert body if there were more institutions and the culture of policy-making needs a fraction of ideas , different groups should be able to give an opinion about the decision-making process