NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

Some Economics of Private Digital Currency

Joshua S. Gans, Hanna Halaburda


This chapter is a preliminary draft unless otherwise noted. It may not have been subjected to the formal review process of the NBER. This page will be updated as the chapter is revised.

Chapter in forthcoming NBER book Economics of Digitization, Avi Goldfarb, Shane Greenstein, and Catherine Tucker, editors
Conference held June 6-7, 2013
Forthcoming from University of Chicago Press

This paper reviews some recent developments in digital currency, focusing on platform-sponsored currencies such as Facebook Credits. We develop a model of platform management in which platform currency offers “enhancements” to users who spend time on the platform. Users allocate time between earning money outside of the platform and using the platform. The platform can equip its currency in different attributes and limitations, with the goal of maximizing profit. We show that limiting functionality of currency (e.g., prohibiting transferability) may increase usage on the platform. But depending on the source of the revenue, different attributes of the currency are optimal. We also find that it will not likely be profitable for such currencies to expand to become fully functional competitors to state-issued currencies. However, it is still possible, in some cases for limited platform-sponsored currencies to be attractive outside of the platform.

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This paper was revised on May 9, 2014

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