Beyond Statistics: The Economic Content of Risk Scores

"Big data" and statistical techniques to score potential transactions have transformed insurance and credit markets. In this paper, we observe that these widely-used statistical scores summarize a much richer heterogeneity, and may be endogenous to the context in which they get applied. We...

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Main Authors: Einav, Liran, Finkelstein, Amy, Kluender, Raymond Peter, Schrimpf, Paul Thomas
Other Authors: Massachusetts Institute of Technology. Department of Economics
Format: Article
Language:en_US
Published: American Economic Association 2017
Online Access:http://hdl.handle.net/1721.1/109558
https://orcid.org/0000-0002-9941-6684
https://orcid.org/0000-0002-0551-169X
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author Einav, Liran
Finkelstein, Amy
Kluender, Raymond Peter
Schrimpf, Paul Thomas
author2 Massachusetts Institute of Technology. Department of Economics
author_facet Massachusetts Institute of Technology. Department of Economics
Einav, Liran
Finkelstein, Amy
Kluender, Raymond Peter
Schrimpf, Paul Thomas
author_sort Einav, Liran
collection MIT
description "Big data" and statistical techniques to score potential transactions have transformed insurance and credit markets. In this paper, we observe that these widely-used statistical scores summarize a much richer heterogeneity, and may be endogenous to the context in which they get applied. We demonstrate this point empirically using data from Medicare Part D, showing that risk scores confound underlying health and endogenous spending response to insurance. We then illustrate theoretically that when individuals have heterogeneous behavioral responses to contracts, strategic incentives for cream-skimming can still exist, even in the presence of "perfect" risk scoring under a given contract. (JEL C55, G22, G28, H51, I13)
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spelling mit-1721.1/1095582022-09-29T15:39:36Z Beyond Statistics: The Economic Content of Risk Scores Einav, Liran Finkelstein, Amy Kluender, Raymond Peter Schrimpf, Paul Thomas Massachusetts Institute of Technology. Department of Economics Finkelstein, Amy Kluender, Raymond Peter Schrimpf, Paul Thomas "Big data" and statistical techniques to score potential transactions have transformed insurance and credit markets. In this paper, we observe that these widely-used statistical scores summarize a much richer heterogeneity, and may be endogenous to the context in which they get applied. We demonstrate this point empirically using data from Medicare Part D, showing that risk scores confound underlying health and endogenous spending response to insurance. We then illustrate theoretically that when individuals have heterogeneous behavioral responses to contracts, strategic incentives for cream-skimming can still exist, even in the presence of "perfect" risk scoring under a given contract. (JEL C55, G22, G28, H51, I13) National Institute on Aging (R01 AG032449) 2017-06-02T18:33:21Z 2017-06-02T18:33:21Z 2016-04 Article http://purl.org/eprint/type/JournalArticle 1945-7782 1945-7790 http://hdl.handle.net/1721.1/109558 Einav, Liran; Finkelstein, Amy; Kluender, Raymond and Schrimpf, Paul. “ Beyond Statistics: The Economic Content of Risk Scores.” American Economic Journal: Applied Economics 8, no. 2 (April 2016): 195–224 © 2016 American Economic Association https://orcid.org/0000-0002-9941-6684 https://orcid.org/0000-0002-0551-169X en_US http://dx.doi.org/10.1257/app.20150131 American Economic Journal: Applied Economics Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Economic Association American Economic Association
spellingShingle Einav, Liran
Finkelstein, Amy
Kluender, Raymond Peter
Schrimpf, Paul Thomas
Beyond Statistics: The Economic Content of Risk Scores
title Beyond Statistics: The Economic Content of Risk Scores
title_full Beyond Statistics: The Economic Content of Risk Scores
title_fullStr Beyond Statistics: The Economic Content of Risk Scores
title_full_unstemmed Beyond Statistics: The Economic Content of Risk Scores
title_short Beyond Statistics: The Economic Content of Risk Scores
title_sort beyond statistics the economic content of risk scores
url http://hdl.handle.net/1721.1/109558
https://orcid.org/0000-0002-9941-6684
https://orcid.org/0000-0002-0551-169X
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