An Indirect Approach to Measuring Productivity in Private Services
نویسنده
چکیده
Productivity measurement is considered in the context of incomplete output information. Only a value measure of output is assumed to be available, which is typical for many service industries. Input markets are assumed competitive while the output market is allowed to be non--competitive, potential markups being assumed to be either known or constant. It is shown that if production technologies are homothetic and the elasticities of total costs with respect to output are strictly increasing, the given data are equivalent to complete information, provided the markup is known. If it is not the results hold conditional on the unknown markup. * Financial support from the Bank of Sweden Tercentenary Foundation, the Royal Swedish Academy of Sciences, and the Sweden America Foundation is gratefully acknowledged. I have benefitted from comments from Thomas Andersson, Ernst Berndt, Rolf Färe, Lars Grönstedt, Sten Nyberg and, in particular, Fabio Schiantarelli and two anonymous referees.
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