exhibit different prescribing behavior (volume and value of prescriptions) when confronted with more competition. As there is … no monetary benefit in doing so, this type of (perceived) quality competition originates from GPs satisfying patients … the level of competition. The level of competition is measured by GP density, after controlling for the number of GPs and …

We propose a methodology for estimating the competition effects from entry when firms sell differentiated products. We … presence and to measure the magnitude of competition effects. We then show how to augment the traditional entry model with a … unbiased estimates of the competition effects from entry. We apply our approach to seven different local service sectors. We …