“…We contribute to the literature on online platforms (Caillaud and Jullien, 2003;Rochet and Tirole, 2003) and, more specifically, to the literature on platform governance as we study a platform's policy to screen out IP-infringing sellers. Recent papers on platform governance have studied the incentives of digital platforms to choose the intensity of seller competition (Teh, 2022), to bias their innovations by trading off one side's surplus against that of the other side (Choi and Jeon, 2022), to introduce deceptive features (Johnen and Somogyi, 2021), to moderate content (Liu et al, 2022;Madio and Quinn, 2021), to delist low-quality sellers (Casner, 2020), and to ensure privacy protection (Etro, 2021a). 12 In addition, this paper is related to the literature on how platforms can influence seller innovation (Belleflamme and Peitz, 2010;Jeon and Rey, 2022) and seller competition (Karle et al, 2020).…”