Horizontal merger evaluation is heavily reliant on market definition. While a SSNIP framework formats the analysis, demand elasticity evidence used to apply the test is often sparse, as is often found in high-technology industries. This paper examines other sources of evidence that reveal the...

The 1996 Telecommunications Act seems to be encouraging competition in key segments of the telephone and cable television industries. Stock price data suggest that the wave of "megamergers" in telecommunications-probably an unanticipated result of the Telecommunications Act-is associated with...