We estimate, using event study techniques, the impact of the main events in an antitrust investigation on a firm’s stock market value. A surprise inspection at the firm’s premises has a strong and statistically significant effect on the firm’s share price, with its cumulative average...

We study the effect of a merger in a dynamic high-technology industry - the videogame market - which is characterized by frequent introduction of new products. To assess the impact of the merger between two large specialist retailers in the UK, we perform a difference-in-differences analysis...

We study the effect of a merger in a dynamic high-technology industry-the videogame market- which is characterized by frequent introduction of new products. To assess the impact of the merger between two large specialist retailers in the UK, we perform a difference-in-differences analysis...

This paper empirically evaluates the effects of a merger between the two largest book retail chains in the UK. We build an original dataset of book titles with data on the prices at the store level and at the national level. We then apply difference-in-differences techniques to assess the impact...

This paper empirically evaluates the price effects of the merger of two major book retail chains in the UK: Waterstone's and Ottakar's. We employ differences-in-differences techniques and use a rich dataset containing monthly scanner data information on a sample of 200 books sold in 60 stores in...

We study the effect of a merger in a dynamic high-technology industry–the videogame market– which is characterized by frequent introduction of new products. To assess the impact of the merger between two large specialist retailers in the UK, we perform a difference-in-differences analysis...

This paper evaluates the price effects of the merger of two major UK book retailers. We use a dataset containing monthly scanner data on a sample of 200 books in 50 local markets for four years around the merger. We compare the price changes after the merger in shops located in areas where both...