Pricing Mechanism in Online Credit Markets

53 Pages Posted: 8 Feb 2019

Date Written: August 31, 2018


We compare two prominent selling mechanisms in online platforms, auctions and posted prices, in the context of, an online peer-to-peer lending marketplace, which switched from auctions to posted prices. We first develop a predictive model using Random Forests to approximate the pricing rule that uses for the posted pricing, which allows us to predict the interest rates for the borrowers who listed under the auctions, if were to use the posted pricing. We find that the posted pricing leads to higher interest rates than the auctions. Using the predicted interest rates and the estimates of the structural model from Kawai, Onishi and Uetake (2018), which estimate the model under the auctions, we simulate the equilibrium outcomes under the posted pricing. We find the funding probabilities are lower under the posted prices than the auctions. This can be attributed to either adverse selection due to the lack of signaling in posted prices or ex-post moral hazard due to higher interest rates in the posted prices. By simulating also the posted price mechanism under symmetric information, we find both effects. Our results imply the increase in funding probabilities observed in the data after the mechanism change mainly results from the change in the composition of borrowers and lenders.

Suggested Citation

Uetake, Kosuke, Pricing Mechanism in Online Credit Markets (August 31, 2018). Available at SSRN: or

Kosuke Uetake (Contact Author)

Yale School of Management ( email )

135 Prospect Street
P.O. Box 208200
New Haven, CT 06520-8200
United States

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