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Gual, Jordi and Hellwig, Martin F. and Perrot, Anne and Polo, Michele and Rey, Patrick and Schmidt, Klaus M. and Stenbacka, Rune (2005): An Economic Approach to Article 82. Report by the European Advisory Group on Competition Policy. Discussion Papers in Economics 2005-26

Hellwig, Martin F. and Schmidt, Klaus M. (2001): Discrete-Time Approximations of the Holmström-Milgrom Brownian-Motion Model of Intertemporal Incentive Provision. Discussion Papers in Economics 2001-11