Reducing Yield Variation in Peach Orchards by Geographic Scattering
假设桃园间产量相关性随距离增加而下降，通过估计随机生产函数证实每增加一英里距离，产量相关性下降2.28%，为通过地理分散降低产量波动提供依据。
Abstract Assuming a declining correlation in yields as distance between pairs of orchards increases, yield variability in peach production may be reduced by increasing distances among orchards. As a measure of yield variability that avoids possible bias resulting from orchard‐specific effects, a stochastic production function is estimated. Results support the assumption that a declining correlation between yields exists as distance increases. For every mile further apart, the correlation in yield declines 2.28%.