?url_ver=Z39.88-2004&rft_id=10.1257%2Faeri.20190272&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.aulast=Martimort&rft.aufirst=David&rft.issue=n%C2%B03&rft.volume=vol.2&rft.date=September+2020&rft.issn=2640-205X&rft.atitle=Nonlinear+Pricing+with+Average-Price+Bias&rft.title=American+Economic+Review%3A+Insights&rft.pages=375-396&rft.genre=article