This document discusses pricing and feedback strategies for online marketplaces. It provides the following key points:
1) Feedback systems should avoid grade inflation and make use of unused behavioral signals rather than just 5-star ratings. Relative rankings tend to be more useful than absolute scores.
2) Pricing models for marketplaces include freemium, transactional fees, and advertising/lead generation. The best approach depends on factors like transaction frequency, price, and whether the marketplace matches buyers or suppliers.
3) Optics are important in how fees are presented even if the underlying economics are the same. Paying sellers quickly improves loyalty and satisfaction.