英文文献：What Can A Kansas Farmer Afford To Pay To Rent Cropland?-一个堪萨斯州的农民能付得起多少钱来租用农田?连续五年的年度数据被用来测量堪萨斯州大约100个农场的农田(还田)的边际价值产品
英文文献作者：Mills, Jeffrey B.,Burton, Robert O., Jr.,Dhuyvetter, Kevin C.,Kastens, Terry L.
英文文献摘要：
Five years of continuous annual data are used to measure the marginal value product of cropland (return to land) on approximately 100 Kansas farms. Determinants of the marginal value product are investigated using regression.

利用回归方法研究了边际价值乘积的决定因素。