The main aim goal of this paper is estimating time series of Social Capital in Iran. For this aim, first we have reviewed theoretical and empirical literature of social capital, and then we used Fuzzy Method for estimating time series of social capital. We used latent variable, because social capital is a qualify variable. Crime and participation indexes are two related variables with social capital. The first one has negative effect on social capital and the second one has positive effect. The results show that trend of social capital in half of last century has slight downward slop. Also, it has many fluctuations because of many events in Iranian history in the last century.
JEL Classification: J24, J41