Social capital in new theories

In recent years we have witnessed the entrance of “social capital” in the discourse of sociology, social science, economic and political science. Focus on social capital has been due to the role that this term plays in producing and increasing economic and human capital. For this reason, today in examining and compiling the social indexes of development by credible world organizations, social capital has attained a particular place. Taking into consideration such significance, this article tries to treat the new opinions about the social capital.