Finger, Robert - In: Journal of International Agricultural Trade and Development 61 (2012) 1
national levels using the example of Swiss wheat and barley yields. The estimated yield variability decreases significantly … with increasing level of aggregation, with crop yield variability at the farm-level being up to 2.38 times higher than … misleading. Using an example of farm yield insurance, we show that using crop yield variability estimates from aggregated levels …