There is much inconsistency when it comes to economic returns to a second major.[1][verification needed] The greatest gains in earnings come when the two majors are in different fields (hypo-specialization), with the highest returns being among those who opt for technical majors.[2][3] An arts/social science or education pairing with a business or math/science has greater earning potential than a single arts/social science or education major – although, adding an arts/social science or education major with a business or math/science degree offers no greater rewards than a single major in either of those fields. On the contrary, it appears that an education and math/science pairing results in ‘‘lower’’ earnings compared to a single math/science major. The greatest earnings appear to be for those who opt for an engineering– math/science pairing.