Thanks for your reply!
About my reasons and goals:
1 - I'm very interested in understanding the relationships between Marketing and Finance; this subject is like a passion of mine, something that sparked during my experience with Marketing Planning. There are not many books about the subject and almost all of them too vague, not deep enough. That kind of thing has been considered a priority for the American Marketing Association for years, there are several very interesting academic papers about it, but there is also a lot of work to be done, as several theoretical gaps still persist. So, in order to really learn about the Marketing-Finance relationships, I believe I must go to the higher level of academic research. Then, going for a PhD seems like the narutal path for me to follow.
2 - I already left my executive career behind me, choosing the academic world instead. I already teach business at a school in Brazil, but I do not want to be only a professor, I want to focus on research. And I sure feels like my Masters has not been enough for that, I don't feel prepared enough to conduct high level research. Again, PhD seems the right choice.
3 - On a more personal level, I want to continue to show people in my country that education and knowledge are important, and a viable choice for a career. I live in a country, Brazil, where education is often not considered a worthy investment. Education is not a priority for the government, for the people, for the companies. I believe that's one of the main reasons Brazil is always struggling with so many hardships; a country can't really evolve without strong education and research. I don't know if it sounds too arrogant, but I want to be an inspiration, someone who helps to bring changes in my country for a better future. I have already done some of that, but a PhD in the US can help me do it in a grander scale.
Of course there are a lot of more information about those goals. I don't know if I can send you my Statement of Purpose when I get to write it.
About reseach and publications:
I just finished my Masters, so I have not a long experience with research. My main research was my dissertation, when I used a stepwise discriminant analysis to investigate whether results from complaint handling cases had an impact on the profitability of companies. My dissertation was approved in January/16. Then, I wrote a paper based on my dissertation, which has been selected to be presented and published at a very important academic conference to be held in Brazil in September. Apart from that, I also have started a project to do a bibliometric analysis of the main marketing journals together with a professor from my Masters course, and I'm involved in some experiments my school is doing with the use of alternative methods of teaching, like Problem-Based Learning.
About the GRE:
Thanks for the reply. I will take the TOEFL first, and then I will resume studying for the GRE and try it again.
About researching PhD programs:
Yeah, I thought there would be no way around it. I have to do some research about the PhD programs and faculty. I have already started to do it, your reply helped to assure me i'm on the right path. It seems that I'll end up with a list of about 25 schools, all of them with professors who have published papers related to my subjects of interest (customer profitability, customer lifetime value etc).
Unfortunately, I'm in no condition to travel to the US. I'll probably exhaust my financial reserves with this process of applying to PhD programs. Just the cost of doing the GRE is almost the value of a monthly minimum wage here in Brazil, really expensive.
I'm really grateful for your opinions, it's a real fight I'm in and it's good to know we have an ally here. Thanks a lot.