This paper studies and theorizes the impact that law enforcement in cities has on criminal activities. Exploring primarily covariates, the results from two IV approaches show that increasing police officers in regions does not reduce the corresponding crimes. There are two sets of data used in...

Investigation of the contradictory aspects of modern diplomacy is essential to a valid understanding of the working of the political system. Among these aspects, uncertainty infuses the norms of response to the conflicts. Iran's nuclear program is an example, which has intensified a lot of...