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Dean Harold ^^« «^S-"'®^-'^»
University of Buffalo,
B u f f a l o
Dear Professor Soners,
Thank you for your kind letter of October 13
which I read xvith much pleasure. I have thought the matiger
over, and I think it v/ould be quite possible to supply you
with some further text as É^OU suggest. I am therefore sending
you (by steamer) four papers which could perhaps be useful
in the' following way.
Paper (a) and (b) are the tvvo you suggested
yourself. Ik quite agree that they could be useful indeed,
A reference to (a) could be made in the beginning of § 2h
and could be called a further elucidation. Paper (b) has been
quoted already in § 37 and this may be just the nlace where to
refer to it.
I add as a new paper, also suitable for the
purpose, paper (c) that could be refiffred to in §'38 by
adding one sentence:" there are reasons to assume that the
elasticities just discussed are higher for long-run than for
short-run reactions. For a more complete discussion of some
evidence of this point, the reader nay be referred to annex
(c)" (or whatever vmy of reference you prefer).
Finally I add paper (d). This is an article
not yet published and subnitted for publication to the editors
of Econometrica Prof. Frisch and 'vlr vSimpson of the Cowles
Commission, Chicago. I understood frort! a first reaction of
Prof. Frisch that they have not very rauch space just now, and
I could imagine that they therefore would be glad to leave
it to you. May I ask you to discuss this matter directly
Y/ith 'iSx Simpson whom I send a copy of this letter. You will
have to look at the paper before being able to judge its
usefulness .for our present purpose. If you do think it is
useful I suggest that it should be added at the end of the
book as a further chapter under the title "The Use of
Econometric Research for the Purpose of Economic Policy
(4n Example)".
The numbers of the section should then perhaps
be adapted to the numbering of the text you have already in
.your possession.. I do think that this paper is ivritten in
a rather simple v/ay and therefore would be in place in the
book, but I am very much interested to know your opinion.
I take it that you v/ill take up matters with
the publishers of the other three papers in order to get
their approval for the reprinting.
Yours very sincerely,

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