AidData's Research Release 2.1 is a snapshot of the AidData's entire project-level database from February 2012. This database includes over 1 million aid activities funded by more than 80 donors from the 1940s to present. For detailed information about this data set, see the AidData User's Guide.
Tierney, Michael J., Daniel L. Nielson, Darren G. Hawkins, J. Timmons Roberts, Michael G. Findley, Ryan M. Powers, Bradley Parks, Sven E. Wilson, and Robert L. Hicks. 2011. More Dollars than Sense: Refining Our Knowledge of Development Finance Using AidData. World Development 39 (11): 1891-1906.