Efficient copyright filters for online hosting platforms
研究了在线托管平台开发不精确的版权过滤器时，如何通过监管和法律责任设计，激励权利人评估合理使用并取消平台的避风港保护。
We build a model where an online hosting platform develops a copyright filter to screen content that contributors wish to upload. The technology is imprecise, since non-infringing material may be incorrectly filtered out. Once the content is hosted on the platform, a right-holder may send a take-down notice if its own monitoring system, also imprecise, finds it to be copyright infringing. The efficient design of regulation and liability calls for (i) giving the right-holder incentives to evaluate fair use when submitting a notice and (ii) lifting the safe-harbor protection granted to platforms that promptly remove content following a take-down notice.