Aggregate merger activity and the business cycle

Abstract

This study examines macroeconomic and industry-level factors (with particular emphasis on the business cycle) on industry-level merger activity. In a sample of US mergers from 1979 to 2006, we find that industry level mergers are highly pro-cyclical. The business cycle has a positive and significant impact on both horizontal and non-horizontal mergers, even after controlling for other macroeconomic and industry-level effects. Although macroeconomic variables have similar effects on both horizontal and non-horizontal mergers, industry-level factors vary significantly between the two types of mergers. Horizontal mergers are much more aligned with neo-classical theories, while non-horizontal mergers are more affected by financing constraints and overvaluation. We also find that the determinants and financing preferences of industry-level mergers vary greatly across the business cycle stages, which suggests that the motivation for mergers changes in different economic conditions.