Biblioth~k des Instituts
fiir Weltwirtschaft Kiel
SEMAINE D’ETUDE SUR LE ROLE DE L’ANALYSE ECONOMETRIQUE ETC. 13

need to be more accurate than those we have at present and we
can try to find out what relationships in the model are really important
 for the main purposes for which we want to use it. But if
we build models, put them in journals and allow them to be forgotten,
 if we do not keep them up to date and if nobody builds on them,
I do not think that we shall ever get satisfactory applied economics

1] Stone - pag. 111