Using a panel data set of 361 German corporations for the period 1991 to 1996 we test the hypothesis that firms with more efficient governance structures have higher profitability. To determine efficiency we compare firms with respect to ownership concentration, the identity of owners, capital...

The anomalous inverse concentration-price relationship observed by some researchers in the newspaper market has been attributed to scale economies. In this paper we suggest that the newspaper's (or magazine's) double-product feature (i.e., news supplied to readers and advertising space supplied...