• A note on upward pricing pressure: the possibility of false positives 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Journal article; Peer reviewed, 2012)
      Joseph Farrell and Carl Shapiro proposed a simple test of the possible upward pricing pressure (UPP) following a merger. They showed that the test may give false negatives—that is, indicate that a merger may not give an ...
    • Markup cyclicality and input factor adjustments 

      Askildsen, Jan Erik; Nilsen, Øivind Anti (Journal article; Peer reviewed, 2010)
      This paper investigates the existence of markups and their cyclical behaviour at the industry sector level. Markups are given as a price-cost relation that is estimated from a dynamic, structural model of the firm. The ...
    • Merger simulations with observed diversion ratios 

      Mathiesen, Lars; Nilsen, Øivind Anti; Sørgard, Lars (Journal article; Peer reviewed, 2011)
      One approach to merger simulations used in antitrust cases is to calibrate demand from market shares and a few additional parameters. When the products involved in the merger case are differentiated along several dimensions, ...