Merger control authorities may approve a merger based on an “efficiency defense.” An important aspect in clearing mergers is that the efficiencies need to be merger-specific. Joint ventures, and in particular research joint ventures (RJVs), may achieve comparable efficiencies possibly without the anticompetitive (market power) effects of mergers. We empirically account for the endogenous formation of mergers and RJVs and provide evidence that at the semiconductor level, mergers and RJVs achieve dominant (net) efficiency effects. Our counterfactuals provide evidence that the efficiency gains caused by mergers would have been achieved by RJVs as well. Therefore, RJVs often represent viable alternatives to mergers from the consumer welfare point of view. At the more disaggregate level we find that the efficiency effects are larger in the microcomponents than in the memory market. This finding emphasizes the importance of market determinants (such as product differentiation and entry) having an impact on efficiency and market power effects.

We derive empirical predictions from the standard investment-cash flow framework on the functioning of internal capital markets (ICM), but circumvent its criticism by focusing on parent cash flow and investment opportunities. We test these predictions using a unique dataset of parent firms and their listed and unlisted subsidiaries in 90 countries over the period 1995–2006. We find that company and country institutional structures matter. (1) Ownership participation of the parent firm in the subsidiary plays a crucial role for the proper functioning of ICMs. The larger the ownership stake of the parent, the better the functioning of the ICM. (2) The best functioning cross-border ICMs can be found in the sub-sample of firms with parents from a country with “strong” institutions and subsidiaries from a country with “weak” institutions. (3) Unlisted subsidiaries are much more dependent on the ICMs their parents provide than listed subsidiaries. Thus, ICMs are not per se “bright” or “dark”, their proper functioning depends on how they are set up.