[author]科斯,R.
[content]
I wish to start with two general observations. First, what I have to say is largely based on my knowledge of developments within the United States and Britain. But I have sufficient confidence in the international character of science to believe that what can be observed in these countries is paralleled by similar developments elsewhere. My second observation is that a paper which deals with what is happening within a series of disciplines and which ranges so widely within economics itself, must inevitably mean, at any rate in my case, that it deals with many subjects about which the writer's knowl-edge is extremely vague. What I have to say will often have the character of assertion rather than of a conclusion based on a careful study of the literature……