@article{Ryan:16581, recid = {16581}, author = {Ryan, James G. and Garrett, James L.}, title = {THE IMPACT OF ECONOMIC POLICY RESEARCH: LESSONS ON ATTRIBUTION AND EVALUATION FROM IFPRI}, address = {2003}, number = {590-2016-39881}, series = {Impact Assessment Discussion Paper 20}, pages = {24}, year = {2003}, url = {http://ageconsearch.umn.edu/record/16581}, doi = {https://doi.org/10.22004/ag.econ.16581}, }