Thresholds defined on the level and change in the HHI (Herfindahl-Hirschmann Index) applied to market shares seem to be the main instrument to select notified mergers for investigation in both the EU and US. We question the use of such a selection rule in differentiated products industries. We...

Consumers' choice set of products within stores can be limited. Ackerberg and Rysman (2005) address this problem by modeling unobserved consumer preferences over products and retail stores, leading to augmented demand specifications. Having Carbonated Soft Drink product level data, where we...

We document the nature of structural changes in employment to understand jobless growth in Irish Manufacturing in the aftermath of EEC/EU membership, 1972-2003. By 1972, forty years of protectionism and fifteen years of export promotion induced the coexistence of large exporting plants with...

For the period 1972-2003 in Ireland we document a persistent decline in traditional import competing and an expansion in exporting plants, within each sector. Yet, the focus of this paper is to explore the vertical linkages between exporting plants and the increasing presence of de novo...