We propose a way to compare the extent of preference misrepresentation between two strategies. We define a mechanism to be monotone strategyproof when declaring a "more truthful" preference ordering in the mechanism dominates - with respect to the true preferences - declaring a less truthful...

This paper reviews some recent developments in digital currency, focusing on platform-sponsored currencies such as Facebook Credits. In a model of platform management, we find that it will not likely be profitable for such currencies to expand to become fully convertible competitors to...

The case describes two alternative elective course assignment procedures: Harvard Business School's lottery-based system and Kellogg Graduate School of Management's bidding-based system. The case has been designed to discuss the benefits and drawbacks of each system and their desirability (or...

We show that a two-sided platform can successfully compete by limiting the choice of potential matches it offers to its customers while charging higher prices than platforms with unrestricted choice. Starting from micro-foundations, we derive the strength and direction of network effect, and...

This paper investigates the causes and welfare consequences of unravelling in two-sided matching markets. It shows that similarity of preferences is an important factor driving unravelling. In particular, it shows that under the ex-post stable mechanism (the mechanism that the literature focuses...

This paper considers platform competition in a two-sided market that includes buyers and sellers. One of the platforms benefits from a favorable coordination bias in the market, in that for this platform it is less costly than for the other platform to convince customers that the two sides will...

In this article, we review the recent developments in the digital currency landscape. We survey the economic drivers that led to the creation of digital currencies and show that they are a natural step in the evolution of means of payment. We overview two major classes of digital currencies,...

We consider dynamic competition among platforms in a market with network externalities. A platform that dominated the market in the previous period becomes “focal” in the current period, in that agents play the equilibrium in which they adopt the focal platform whenever such equilibrium...

We consider platform competition in a two-sided market, where the two sides (buyers and sellers) have ex-ante uncertainty and ex- post asymmetric information concerning the value of a new tech- nology. We find that platform competition may lead to a market failure: competition may result in a...