In the United States, a university may offer a student who studies a social sciences field a Bachelor of Arts degree, particularly if the field is within one of the traditional liberal arts such as history, or a BSc: Bachelor of Science degree such as those given by the London School of Economics, as the social sciences constitute one of the two main branches of science (the other being the natural sciences). In addition, some institutions have degrees for a particular social science, such as the Bachelor of Economics degree, though such specialized degrees are relatively rare in the United States.