Alleged Exclusionary Contracting for Outpatient Services. Counsel for an outpatient surgery center retained Cornerstone Research and Professor Emeritus Richard Arnould to assess whether exclusivity agreements between a hospital system and health plans restrained competition and raised prices. rofessor Emeritus Richard Arnould of the University of Illinois at Urbana-Champaign examined the relevant geographic markets for inpatient and outpatient services to assess whether the hospital system restrained competition and foreclosed a substantial share of the market.

how did Cornerstone Research and Professor Emeritus Richard Arnould contribute to the assessment