mmr08

I am a senior math major at a decent state university. I have been preparing for a career as an actuary for most of my undergraduate career, but after working for nearly a year as an actuarial intern with a financial company, I have decided that it is not the right path for me. I am have completed around 18 hours of economics coursework, and feel that economics is really a better fit. I would ultimately like to pursue a career in some kind of international economic development, perhaps in the non-profit sector. I would like suggestions on master's programs that may prepare me for this kind of work. I am not opposed to PhD programs, but in my current state, I see no possibility of admission into any reputable programs (I don't have any research experience, and I am not particularly close to any economists that could write thoughtful letters of recommendation for me). I would also like opinions on what my next move should be...I am considering staying at my university for another year to complete a bachelor's in economics (since it is too late into the academic year for me to apply to master's programs for the 2015-16 year). Is this a good idea? Furthermore, does anyone have any suggestions for internships or other experiences that may help me with admissions into a program? Thanks in advance.