Volume 10 is entitled "Advertising and Differentiated Products," and is part of the annual series "Advances in Applied Microeconomics." The series provides a forum in which researchers disseminate frontier research in applied microeconomics. The volume contains 11 chapters, which cover theoretical and empirical contributions. Four chapters examine theoretical models of incomplete information, product innovations in services, generic advertising, and brand loyalty and price competition. The seven empirical chapters examine both advertising and product differentiation, including generic advertising, advertising bans and the First Amendment, alcoholic beverage advertising, magazines advertising and news stand circulation, product variety in radio broadcasting, mandated exclusive territories, and pricing dynamics in the retail sector.