I earned my MBA in 2010, but the job market wasn't the best. I was working as a research analyst for Nielsen (for six years), but joined the ARMY when the company started laying off employees. I am currently an ARMY medic. I have the GI Bill at my disposal; however, I'm questioning whether to pursue a doctorate degree or return to school and study another topic (e.g., teaching or nursing). I'm great at business academically. I have an undergrad in marketing from Northern Kentucky University (3.4 GPA) and a MBA from Thomas More College in Kentucky (3.8 GPA). What are the benefits of earning a doctorate degree given that the MBA hasn't yielded much ROI?