extracted text

PROF DR J. TINBERGEN

THE HAGUE, l8 Seotember 1950

Sijzenlaan k\

Prof. Dr Seymour E, Harris,
Editor of the
-»«
REVIEW OF ECONOivICS AND
STATISTICS
322, Littauer Center,
Cambridge 38, Mass.
U.S.A.
Dear Dr Harris,
I am very glad to give you some particulars
about Dr Verdoorn and his book.
Dr Verdoorn studied economics at the
university of Amsterdam and took his doctor degree in
Rotterdamj I acted as his promotor. His thesis consisted
in a statistical analysis of the phenomenon of fixed
co^ts. He showed that there is no evidence to believe
that since I87O the ratio between fixed and variable costs
changed very much, and he tried to make it understandable
tn ï/hich,.X think, he succeeded. Dr Verdoorn is now chief
of the research section of the Central Planning Office
for the Dutch Government.
His book on market analyses is in my
opinion a very good one. In fact he succeedefl in giving a
very clear treatment of the statistical and econometric
methods used in market analyses in a rather simple form
and with a large number of applications on concrete cases.
The book therefore at the same tim.e represents a compendium
of practical work that has be-nn done in this field. I
warmly recommend the book for translation.
Yours very sincerely.

^

•*'**- ' edi l o i o * i b 3
eOTMOHooa -ïo WIIVSH
30TT8ITAT3
.1 O leiJB.'J-iJ ,SS£
easM , 8 £ osblicfmBD
« ii. 3 , Ü

- i B l i i o i i t i e q srop

uox

9 v i § od' & B I § ^^ISV HIB I
.j/oocf a i i i bciB m o o b i s V iQ cftiods

9rf.t SB sol'"nonoo9 belbuSB m o o b i e V i ü
nl 99*t§9b lod-oop pJ-rf jJoocf bnB r^iBbisi^mk
'i^--'0iÈ$0f0rï£i'Q
b s j - a l a n o o slnsri;)- alH .io.io'^''o*TC7 axri SB ibe^tofl I
lÈÉMêéioR
bBxtl lo nonenonerfq edi l o s l B ^ f i n B IfiolcfaiifB^fe fi as
9V9ll9cf O* e o n 9 b f v 9 on a l eTOrfct dfjsfft Ê#?i?0i$a « # • « t s o o
s j s o o sIcffiiiÊV baB bexfi
naew^tgcf oïiBi
9ffef 0 ^ 8 t 9 ö n l g :tfiri:f
9lcf6,bnÊ#ai9bmj :}•^ ejfBm o;t b s l i * srf bnB ^rfowm xi©v fisgnBrfo
lstt|j||>v won R1 n i o o b i 9 V iQ. .beb^goojj?; ed^iiütfii
T . {dolriw fli
9 o f 1 1 0 ^i^ïnaBll
IsiJ-flsO 9rf:^ l o noi-^ooB rioiBeaei sriit l o
.d-n9Trnin--oO dn:^;jQ ^-ii" l o l
'i^;;:".' uj. ax cecï^iiinÊ d"9ji'i£n'i no iiooü' a i ü
f: a n i v l g ni- feb'^goojjR eri ;toBi n l . eno boog x'^av B noinj-qo
o l i i s m o n o o e baB iBoxipJ^BSe.
srW l o &aemiBQ'i:ï IBBIO
xiev
- l o l elqrrjp. i9ri,tfiT B n l a s s x l B n s d'gji'iBm n l
fc92X;
'ïen
.KScBo scfsionoo no s n o i J ' B o ' ^ I q q B ' l o ledmua O S I B I B ....
„HB
wutba&titioo B 2;tn959'iGö*i e.Tti eisii® eri:? )B eiolgisrfjf üoocf oriT
T . b l 9 l l p.ïdi al enob n'-^9d p.ed ;ïBdi jJiow I s o l J o B i q l o
.nol.tclpnBi.^^ 'lo*^ >'ood' 9fft bn^r-fr^ooei \J'r'f'T<^i'i
fXl&ieoais

XIP>V

PIUOY