Horizontal mergers give rise to unilateral anticompetitive effects if they cause the merged firm to act less intensely competitive than the merging firms, while non-merging rivals do not alter their competitive strategies. This chapter describes the economic theory underlying unilateral...

The discourse on competition policy often uses the term quot;consumer welfarequot; but rarely is clear about its meaning or role. I address the meaning and role of quot;consumer welfarequot; in three discrete essays. The first reviews key economic concepts and the usage of the term quot;consumer...