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This paper develops a theory of oligopoly and markups in general equilibrium. Firms compete in a network of product market rivalries that emerges endogenously out of the characteristics of the products and services they supply. My model embeds a novel, highly tractable and scalable demand system...
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I study how ownership consolidation affects productivity and market power in both factor and product markets. I develop a model to separately identify markups, markdowns, and productivity using production and cost data. I use the model to examine the effects of consolidation in the Chinese...
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In Konzentrationsanalysen wird neben der Ermittlung eines globalen Konzentrationsmaßes für einen relevanten Markt mit Hilfe von Dominanzmaßen ein oligopolistischer Kern abgegrenzt. Diese Dominanzmaße stehen im Mittelpunkt dieser Arbeit. Es wird untersucht, welche Anforderungen an diese Maße...
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