We develop a theoretical model to study the effects of an ad valorem taxation regime differentiated according to product characteristics (quality) within an imperfectly competitive market. Then to test our theoretical prediction we use yearly data from the Irish automobile market during the...

New drug introductions are a key to growth for pharmaceutical firms. However not all innovations are the same and they may have differential effects that vary by firm size. We use quarterly sales data on UK pharmaceuticals in a dynamic panel model to estimate the impact of product (new drugs)...

This is an ex-post evaluation of how innovation changed following mergers and subsequent policy interventions, using an industry case study involving the 5-to-3 consolidation of three related mergers in the worldwide hard disk drive (HDD) industry, in 2011/12. Unlike most previous empirical...