Returns to Scale in R&D and the Schumpeterian Hypothesis: A Comment
评论了Kohn和Scott关于熊彼特假说的实证检验，指出其结论不恰当，并列出不同版本的熊彼特假说以澄清问题。
IN the literature on research and development (RD I979] have criticized the empirical tests by showing that greater efficiency in research does not necessarily imply that research intensity will also be higher, and that the empirical tests therefore do not verify the hypothesis. Later, Kohn and Scott (henceforth, K-S), [i982] using a modified formulation of the F-T model, have claimed that An empirical test of the Hypothesis is a legitimate test of Schumpeter's own hypothesis, [I976, p. 248]. The purpose of this paper is to show that this conclusion is inappropriate. To examine the K-S conclusion, we start with a list of different statements which have been or can be termed the Schumpeterian hypothesis (SH).