Do social behavorial and economics (SBE) PhD students get funding in the US? I am a Banking and Insurance graduate from India with 7.5 years of banking experience. I wish to pursue a combined MS and PhD in the SBE field. Do universities in the US fund such PhDs? By the way, I am on an H4 visa.
Yes, U.S. universities often fund these Ph.D. positions, though my sense is that there are fewer funded positions than in STEM fields. It would be very rare for a MS to be funded, as far as I know, and often opportunities for teaching assistantships (funding through teaching classes to (usually) undergraduates) are reserved for people in doctoral programs as opposed to master's programs. 

Also, usually I hear these fields referred to as "social science," with the NSF being the only entity I associate with the term "SBE".