TY - JOUR T1 - Bias from Farmer Self‐Selection in Genetically Modified Crop Productivity Estimates: Evidence from Indian Data JO - Journal of Agricultural Economics UR - http://dx.doi.org/10.1111/j.1477-9552.2007.00076.x PY - 2007/01/22 AU - Crost B AU - Shankar B AU - Bennett R AU - Morse S ED - DO - DOI: 10.1111/j.1477-9552.2007.00076.x PB - Wiley VL - 58 IS - 1 SP - 24 EP - 36 Y2 - 2024/12/22 ER -