<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-09-18T23:41:46Z</responseDate><request verb="GetRecord" identifier="oai:dspace.mit.edu:1721.1/37415" metadataPrefix="dim">https://dspace.mit.edu/server/oai/request</request><GetRecord><record><header><identifier>oai:dspace.mit.edu:1721.1/37415</identifier><datestamp>2022-01-13T07:54:28Z</datestamp><setSpec>com_1721.1_7582</setSpec><setSpec>com_1721.1_7581</setSpec><setSpec>col_1721.1_131022</setSpec></header><metadata><dim:dim xmlns:dim="http://www.dspace.org/xmlns/dspace/dim" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.dspace.org/xmlns/dspace/dim http://www.dspace.org/schema/dim.xsd">
   <dim:field mdschema="dc" element="contributor" qualifier="advisor" lang="en_US">Abhijit Banerjee and Xavier Gabaix.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="author" lang="en_US">Basu, Karna</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="other" lang="en_US">Massachusetts Institute of Technology. Dept. of Economics.</dim:field>
   <dim:field mdschema="dc" element="contributor" qualifier="department">Massachusetts Institute of Technology. Department of Economics</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="accessioned">2007-05-16T18:33:26Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="available">2007-05-16T18:33:26Z</dim:field>
   <dim:field mdschema="dc" element="date" qualifier="issued" lang="en_US">2006</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="uri">http://hdl.handle.net/1721.1/37415</dim:field>
   <dim:field mdschema="dc" element="identifier" qualifier="oclc" lang="en_US">123030513</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Economics, 2006.</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">"September 2006."</dim:field>
   <dim:field mdschema="dc" element="description" lang="en_US">Includes bibliographical references.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="abstract" lang="en_US">This thesis is a collection of three theoretical essays that examine the role of time-inconsistent preferences in informal banking. The first two chapters focus on specific banking institutions, while the third studies individual welfare more generally. In Chapter 1, I develop a model of rotating savings and credit associations (roscas) where members are quasi-hyperbolic discounters. I show that, in this setting, roscas function as commitment savings devices, and can survive in equilibrium even in the absence of formal contracting or informal social sanctions. In Chapter 2, I study the behavior of quasi-hyperbolic discounters who have access to credit and a non-secure savings technology. I show that these agents might simultaneously save and borrow to create optimal investment incentives for future selves. Chapter 3 evaluates and compares the welfare outcomes for time-inconsistent agents under several banking environments.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="statementofresponsibility" lang="en_US">by Karna Basu.</dim:field>
   <dim:field mdschema="dc" element="description" qualifier="degree" lang="en_US">Ph.D.</dim:field>
   <dim:field mdschema="dc" element="format" qualifier="extent" lang="en_US">94 p.</dim:field>
   <dim:field mdschema="dc" element="language" qualifier="iso" lang="en_US">eng</dim:field>
   <dim:field mdschema="dc" element="publisher" lang="en_US">Massachusetts Institute of Technology</dim:field>
   <dim:field mdschema="dc" element="rights" lang="en_US">M.I.T. theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission.</dim:field>
   <dim:field mdschema="dc" element="rights" qualifier="uri">http://dspace.mit.edu/handle/1721.1/7582</dim:field>
   <dim:field mdschema="dc" element="subject" lang="en_US">Economics.</dim:field>
   <dim:field mdschema="dc" element="title" lang="en_US">Essays on informal banking</dim:field>
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   	&lt;Title>Essays on informal banking&lt;/Title>
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   	&lt;PublicationDate>2006&lt;/PublicationDate>
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        	&lt;DisplayName>Basu, Karna&lt;/DisplayName>
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    &lt;Keyword>Economics.&lt;/Keyword>
   	&lt;Abstract>This thesis is a collection of three theoretical essays that examine the role of time-inconsistent preferences in informal banking. The first two chapters focus on specific banking institutions, while the third studies individual welfare more generally. In Chapter 1, I develop a model of rotating savings and credit associations (roscas) where members are quasi-hyperbolic discounters. I show that, in this setting, roscas function as commitment savings devices, and can survive in equilibrium even in the absence of formal contracting or informal social sanctions. In Chapter 2, I study the behavior of quasi-hyperbolic discounters who have access to credit and a non-secure savings technology. I show that these agents might simultaneously save and borrow to create optimal investment incentives for future selves. Chapter 3 evaluates and compares the welfare outcomes for time-inconsistent agents under several banking environments.&lt;/Abstract>
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