L51 - Economics of Regulation
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Addictive Platforms
We study competition for consumer attention, in which platforms can sacrifice service quality for attention. A platform can choose the “addictiveness” of its service. -
Flight from Safety: How a Change to the Deposit Insurance Limit Affects Households’ Portfolio Allocation
Deposit insurance protects depositors from failing banks, thus making insured deposits risk-free. When a deposit insurance limit is increased, some deposits that previously were uninsured become insured, thereby increasing the share of risk-free assets in households’ portfolios. This increase cannot simply be undone by households, because to invest in uninsured deposits, a household must first invest in insured deposits up to the limit. This basic insight is the starting point of the analysis in this paper. -
On the Essentiality of E-Money
Recent years have witnessed the advances of e-money systems such as Bitcoin, PayPal and various forms of stored-value cards. This paper adopts a mechanism design approach to identify some essential features of different payment systems that implement and improve the constrained optimal resource allocation. -
E-Money: Efficiency, Stability and Optimal Policy
What makes e-money more special than cash? Is the introduction of e-money necessarily welfare enhancing? Is an e-money system necessarily stable? What is the optimal way to design an efficient and stable e-money scheme? -
Some Economics of Private Digital Currency
This paper reviews some recent developments in digital currency, focusing on platform-sponsored currencies such as Facebook Credits.