Four firms each have 25% market share in an industry. If two of the firms merge what is the change in the Herfindahithirschman Index? In 2007, the European Union sued Apple under its antitrust laws. Apple has established country specific websites for European customes of itunes. The music inventory and prices vary among the different country-specific sites, and customers are prohibited from purchasing music from an iTunes site outside their country of residence. The European Union claims that this is an unlawful territorial sales restriction. Do you think Apple should be permitted to engage in this practice? No, Apple should not be permitted to engage in this practice. Yes, Apple should be permitted to engage in this practice