Members of the effective altruist community have tended to focus on research that is important, neglected, and tractable. Two areas of research are most commonly cited as meeting these criteria. First, research on the life sciences, which may improve global health or animal suffering. Second, prioritization research, which seeks to find the most promising focus areas.
Cotton-Barratt, Owen. 2015. Project overview: problems of unknown difficulty.
Dalton, Max. 2015. Estimating the cost-effectiveness of research into neglected diseases.
Shulman, Carl. 2011. High impact science.