how can researchers in developing countries do research that benefits their countries, and at the same time publish in respected journals, when respected journals are not interested in publishing research about developing countries.
Research that is (meant to be) of benefit to countries or special interest groups, quite often has a applied approach and may not always be aiming at proving an idea or theory.
The highest ranked journals often focus on research of a basic nature, with a theory or idea to be proven.
This difference will not disappear
There are however (in certain fields) rather high ranked journals that have their focus on reviews or developments all over the world. It might (sometimes) be a matter of searching.
One basic question remains: who is paying for the research and what is their prime interest? Applicable results or publications in Nature or Science???
Many Thanks to Niles and Kan, I think Kan hits the point that I targeted from my question, let me rephrase it again. Do I have to publish papers that are of interest to highly respected journals or to -as Kan mentioned- "benefit to countries or special interest groups". some times when you lucky enough both target is satisfied.
I see your dilemma if your definition of a respective journal is the American economic review but if your publishing definition of "respected" is in not a general economic theory journal but in a journal about developmental economics and your work is empirical then you just have to demonstrate the beneficial effects of the empirical research and there are journals who are interested in that.