firms and in the amount of funding they seek. The model can encompass collusion between clients and auditors, arising from … the joint provision of auditing and consulting services: deflecting collusion requires less ambitious standards. Finally …, banning the provision of consulting services by auditors eliminates collusion but may not be optimal in the presence of …

antitrust authorities in each market. We are concerned with how the sustainability of collusion in one local market is affected … by the existence of collusion in other markets when they are linked by demand relationships. The interdependence of … collusion sustainability across markets leads to potential externalities in antitrust enforcement across jurisdictions. As a …