This online appendix contains the derivation of the closed form solutions for the examples used in the main working paper No. 16-002. It establishes the result stated in Section 4.3 of the main paper, that Proposition 4 continues to hold even if the price is endogenous and there are production...

Revenue sharing between principals and agents is commonly used to balance double-sided moral hazard. We provide a theory of how, when such revenue-sharing is optimal, a principal allocates control rights over decisions that either party could make. We show that the principal either keeps control...

This paper explains why platforms such as Amazon and Visa rely predominantly on ad-valorem fees, fees which increase proportionally with transaction prices. It also provides a new explanation for why ad-valorem sales taxes are more desirable than specific taxes. The theory rests on the ability...

An experiment is designed to test the equilibria typically studied in the repeated game literature (i.e. those based on Nash reversion and optimal symmetric two-phase punishment strategies). One hundred pairs of subjects repeatedly set prices in a differentiated demand duopoly setting. Unlike...

This paper presents a model of competing payment schemes. Unlike previous work on generic two-sided markets, the model allows for the fact that in a payment system users on one side of the market (merchants) compete to attract users on the other side (consumers who may use cards for purchases)....

This paper presents a model in which investors, acting in self-interest, force interest rates to the levels desired by the monetary authority. If interest rates move out of line with those required by the monetary authority, a statement (an open mouth operation) is all that is needed to restore...

We study the economic tradeoffs that drive organizations to position themselves closer to or further away from a multi-sided platform (MSP) business model, relative to three traditional alternatives: vertically integrated firms, resellers or input suppliers. These tradeoffs lead to a...

A growing number of intermediaries (e.g. Amazon, Apple's Appstore, and Walmart) act as resellers on their own marketplaces. We build a model of dual marketplace and reseller intermediation to explore the implications of this practice, and the call to ban it, taking into account an intermediary's...

A fundamental aspect of any open payment system is the interchange fee that is paid from the merchant's bank to the cardholder's bank. Using a model in which there is partial participation by heterogeneous consumers and merchants, this paper characterizes the output maximizing, profit maximizing...

Intermediaries can choose between functioning as a marketplace (on which suppliers sell their products directly to buyers) or as a reseller (purchasing products from suppliers and selling them to buyers). We model this as a decision between whether control rights over a non-contractible decision...