Note—Price Indexes to Calculate Real R&D Expenditures
为德国工业研发支出提供了一个类似Mansfield（1987）美国研发平减指数的价格指数，并展示两个指数与研发就业密切相关，可用于比较国家间研发支出相对成本。
In a recent contribution, Mansfield (Mansfield, Edwin. 1987. Price indexes for R and D inputs, 1969–1983. Management Sci. 33(January) 124–129.) published a R&D deflator for American industrial R&D expenditures. A similar deflator is presented here for German industrial R&D expenditures. It is shown that both indexes are closely related to R&D employment. They can also be used to evaluate the relative costs of spending on R&D between countries.