英文文献：Risk-Returns Criteria In Selecting Farm Machinery
英文文献作者：Edwards, William,Boehlje, Michael
英文文献摘要：
Risk preferences can be introduced into machinery selection by estimating the mean and standard deviation for total costs, including timeliness costs, associated with various machinery sets. Risk-returns criteria tested included E, V and E, S frontiers, cost-variance, upper confidence limits and maximum affordable cost.