TY - JOUR AU - Siebert,Ralph AU - Gugler,Klaus TI - Market Power versus Efficiency Effects of Mergers and Research Joint Ventures: Evidence from the Semiconductor Industry JF - National Bureau of Economic Research Working Paper Series VL - No. 10323 PY - 2004 Y2 - February 2004 UR - http://www.nber.org/papers/w10323 L1 - http://www.nber.org/papers/w10323.pdf N1 - Author contact info: Ralph Siebert E-Mail: rsiebert@purdue.edu AB - Merger control authorities may approve a merger based on a so-called 'efficiency defence'. 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 anti-competitive (market power) effects of mergers. We present evidence for the semiconductor industry that RJVs indeed represent viable alternatives to mergers. We empirically account for the endogenous formation of mergers and RJVs. ER -