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Author:Townsend, Robert M. 

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Heterogeneity and risk sharking in village economies

We show how to use panel data on household consumption to directly estimate households? risk preferences. Specifically, we measure heterogeneity in risk aversion among households in Thai villages using a full risk-sharing model, which we then test allowing for this heterogeneity. There is substantial, statistically significant heterogeneity in estimated risk preferences. Full insurance cannot be rejected. As the risk sharing, as-if-complete-markets theory might predict, estimated risk preferences are unrelated to wealth or other characteristics. The heterogeneity matters for policy: Although ...
Staff Report , Paper 483

Working Paper
Theory of the firm: applied mechanism design

This paper studies the question: Why are there Firms? Motivated by observations of a variety of economies, several distinct concepts of what it means to be a firm are identified and then analyzed with mechanism design models. In the first class of models, a group of individuals is a firm if they collude and share information. This model is analyzed and compared with the non-firm alternative. Conditions are provided in which firms are preferred to no firms and vice versa. Next, we show how an economy with multiple distinct groups of colluding individuals can be decentralized. ; In the next ...
Working Paper , Paper 96-02

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Zero Settlement Risk Token Systems

How might modern settlement systems with distributed ledger technology achieve zero settlement risk? We consider the design of settlement systems that satisfies two integral features: information-leakage proof and zero settlement risk. Legacy settlement systems partition private information but are vulnerable to settlement fails. A token system with dynamic ownership representation, or a dynamic ledger, can be designed to achieve both, as long as it employs a protocol that enforces two restrictions: programs must be immediately implemented and must involve transactions based on verifiable ...
Staff Reports , Paper 1120

Working Paper
The Economics of Platforms in a Walrasian Framework

We present a tractable model of platform competition in a general equilibrium setting. We endogenize the size, number, and type of each platform, while allowing for different user types in utility and impact on platform costs. The economy is Pareto effcient because platforms internalize the network effects of adding more or different types of users by offering type-specific contracts that state both the number and composition of platform users. Using the Walrasian equilibrium concept, the sum of type-specific fees paid cover platform costs. Given the Pareto efficiency of our environment, we ...
International Finance Discussion Papers , Paper 1280

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Optimal Design of Tokenized Markets

Trades in today’s financial system are inherently subject to settlement uncertainty. This paper explores tokenization as a potential technological solution. A token system, by enabling programmability of assets, can be designed to eradicate settlement uncertainty. We study the allocations achieved in a decentralized market with either the legacy settlement system or a token system. Tokenization can improve efficiency in markets subject to a limited commitment problem. However, it also materially alters the information environment, which in turn aggravates a hold-up problem. This limits ...
Staff Reports , Paper 1121

Report
A model of circulating private debt

We study the possible specialness of circulating as opposed to noncirculating private securities using models whose equilibria imply the existence of both. The models are pure exchange setups with spatial separation and with the potential for a variety of intertemporal trades. We find a sense in which unregulated circulating private securities are troublesome. It can happen that in order for an equilibrium to exist, the amounts of circulating debts issued at the same time in spatially and informationally separated markets have to satisfy restrictions not implied by individual maximization and ...
Staff Report , Paper 83

Conference Paper
Small business access to trade credit: some evidence of ethnic differences

Proceedings , Paper 672

Working Paper
Portfolio choices and risk preferences in village economies

We use a model of optimal portfolio choice to measure heterogeneity in risk aversion among households in Thai villages. There is substantial heterogeneity in risk preferences, positively correlated in most villages with alternative estimates based on a full risk-sharing model.
Working Papers , Paper 706

Working Paper
Firms as clubs in Walrasian markets with private information : technical appendix

This paper proves the Welfare Theorems and the existence of a competitive equilibrium for the club economies with private information in Prescott and Townsend (2005). The proofs cover lottery economies with a finite number of goods and without free disposal. A mapping based on Negishi (1960) is used.
Working Paper , Paper 05-11

Journal Article
Monetary theory and electronic money : reflections on the Kenyan experience

This article uses a class of models of money and the payments system to inform an analysis of "mobile banking" in the context of the rapid expansion of M-PESA, a new technology in Kenya that allows payments via mobile phones (even without any access to a bank account), and currently reaches close to 38 percent of Kenyan adults. The separation of households and firms in space and time suggests, in theory, from various separate models, a number of implications. These include (i) the potential gain, under some circumstances, from allowing net e-money credit creation, (ii) the impact that the ...
Economic Quarterly , Volume 96 , Issue 1Q , Pages 83-122

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