It has often been found useful to measure in some way the extent to which (with-profit) prices diverge from (zero-profit) values. But it is not satisfactory to employ a measure which varies with the choice of numeraire, for this element of arbitrariness has nothing to do with the central idea of...

The cumulative causation in the relation between labour productivity and output growth, known as Verdoorn's Law, is empirically tested using data from 109 EU12 regions during the period 1977--2005. Several specifications of Verdoorn's Law are put forward in this paper, which attribute the...