PT - JOURNAL ARTICLE AU - Mezzatesta, Mariano AU - Newburn, David A. AU - Woodward, Richard T. TI - Additionality and the Adoption of Farm Conservation Practices AID - 10.3368/le.89.4.722 DP - 2013 Nov 01 TA - Land Economics PG - 722--742 VI - 89 IP - 4 4099 - http://le.uwpress.org/content/89/4/722.short 4100 - http://le.uwpress.org/content/89/4/722.full SO - Land Econ2013 Nov 01; 89 AB - We use propensity score matching to estimate additionality from enrollment in federal costshare programs for six practices. We analyze farmer adoption decisions based on farmer survey data in Ohio. We develop a new methodological approach to decompose the average treatment effect on the treated according to relative contributions of voluntary adopters and new adopters. Our results indicate that cost-share programs achieve positive levels of additionality for each practice. But percent additionality varies dramatically between practices. Specifically, percent additionality is highest for hayfield establishment (93.3%), cover crops (90.6%), and filter strips (88.9%), while it is lowest for conservation tillage (19.3%). (JEL Q24, Q28)