This paper uses a novel data set of the trade mark activity of UK manufacturing and service sector firms to investigate whether applications for trade marks are suggestive of product innovation, improving the profitability and productivity of firms.  read more »

Different formulae for the decomposition of aggregate productivity levels and changes are applied to German manufacturing firms that pertain to 11 different industries at a roughly two-digit level observed over the period 1981-1998.  read more »