SEMAINE DETUDE SUR LE ROLE DE L ANALYSE ECONOMETRIOUE ETC. 205 
can be assigned monetary values. What this procedure does is 
provide a format into which the best current understanding 
of the conceptual issues can be inserted. 
You will have noted that I have dealt at least as much with 
problems of design as with problems of assessment of efficacy, 
my assigned topic. This is because these two problems are 
inseparable: a fair apprisal of a project requires a good design, 
a good design must be based on the standards to be applied 
in making the appraisal. In essence, the designer must also 
be an appraiser; a separate appraiser if there is one, has onlv 
an auditing function 
Dorfman - pag. 
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