# Table 1 Definition of Explanatory Variables and Summary Statistics (n = 2114)

Variables Mean SD Definition
Landscape attributes KW Factor 0.30 0.10 Spatially weighted average over arable land of the K-W factor in the counties farmers operate
Available water capacity 0.16 0.06 Spatially weighted average over arable land of available water capacity in the counties farmers operate
Std slope 3.78 1.58 Standard deviation of slope within the counties farmers operate
Farm characteristics Farm size 1150.41 6524.27 Total cropland acres operated in 2010
Rental percentage 0.41 0.37 Share of farm acres rented
Irrigation percent 0.05 0.21 Share of crop land irrigated
Livestock 0.52 0.50 Cattle and/or hogs raised on farmers' operation in 2010 (1 = yes, 0 = no)
EQIP and CSP 0.12 0.32 Farmer participates in Environmental Quality Incentives Program (EQIP) and/or Conservation Stewardship Program (CSP) in 2010 (1 = yes, 0 = no)
Farmer demographics and characteristics Experience 35.85 15.04 Number of years the operator has been farming
Risk avoider 0.40 0.49 Farmer describes themselves as a risk avoider (1 = yes, 0 = no)
Off-farm employ 0.53 0.50 Farmers or their immediate families employed off the farm (1 = yes, 0 = no)
Crop insurance 0.68 0.47 Farmers grow and insure their crop (1 = yes, 0 = no)
Gender 0.95 0.23 Gender of farm operator (1 = male, 0 = female)
College 0.34 0.47 Farm operator has earned a college degree (1 = yes, 0 = no)
Region West 0.23 0.42 Agricultural reporting district 10, 20 or 30 (1 = west, 0 = other area)
East 0.32 0.47 Agricultural reporting district 70, 80 or 90 (1 = east, 0 = other area)
Weather Average PZ 0.52 0.11 Mean Palmer Z Drought over past 10 years
Std PZ 2.04 0.13 Standard deviation of the Palmer Z Drought over past 10 years
1. The standard deviation of all binary variables is calculated as: $$\sqrt {p\left( {1 - p} \right)}$$, where p is the mean of the binary variable.