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Crop insurance premium subsidies affect patterns of crop acreage for two reasons. First, holding insurance coverage constant, premium subsidies directly increase expected profit, which encourages more acreage of insured crops (direct profit effect). Second, premium subsidies encourage farms to increase crop insurance coverage. With more insurance coverage, farms obtain more subsidies, and farm revenue becomes less variable as indemnities offset revenue shortfalls, so acreage of insured crops likely increases (indirect coverage effect). By exploiting exogenous policy changes and using approximately 180,000 county‐crop‐year observations, we estimate the sum of these two effects of premium subsidies on the pattern of U.S. acreage across seven major field crops. We estimate that a 10% increase in the premium subsidy causes a 0.43% increase in the acreage of a crop in a county holding the premium …