“…Only very few studies have investigated the influence of upstream competition on the performances of downstream industries. Some of them are panel data analyses for one country at the industry level (such as Allegra et al ., , for Italy, or at the firm level, Forlani, , on France and Arnold et al ., , on the Czech Republic), and they all use specific indicators of upstream competition, as for example Lerner index or concentration index. Other studies (like Faini et al ., ; Barone and Cingano, , and Bourlès et al ., ) rely on country‐industry panel data analyses and on the OECD regulation indicators in upstream industries, as we do in this paper.…”