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Joel Shapiro

Researcher at University of Oxford

Publications -  56
Citations -  3258

Joel Shapiro is an academic researcher from University of Oxford. The author has contributed to research in topics: Credit rating & Structured finance. The author has an hindex of 17, co-authored 52 publications receiving 2993 citations. Previous affiliations of Joel Shapiro include Pompeu Fabra University.

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The Credit Ratings Game

TL;DR: In this article, the authors provide a model of competition among credit ratings Agencies (CRAs) in which there are three possible sources of conflicts: 1) the CRA conflict of interest of understating credit risk to attract more business; 2) the ability of issuers to purchase only the most favorable ratings; and 3) the trusting nature of some investor clienteles who may take ratings at face value.
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The Credit Ratings Game

TL;DR: In this article, the authors model both the CRA con-tiction of understating credit risk to attract more business, and the issuer con-fection of purchasing only the most favorable ratings (issuer shopping), and examine the eectiveness of a number of proposed regulatory solutions of CRAs.
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Ratings Quality Over the Business Cycle

TL;DR: In this paper, the authors analyze a dynamic model of ratings where reputation is endogenous and the market environment may vary over time, and find that a CRA is more likely to issue less accurate ratings in boom times than during recessionary periods.
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Corporate Governance and Banks: What Have We Learned From the Financial Crisis?

TL;DR: The authors explored the origins of excessive risk-taking in the banking industry and provided the analytical ammunition required to rigorously examine regulatory policy at a time when it is undergoing a complete metamorphosis.
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Ratings Quality over the Business Cycle

TL;DR: In this paper, a model of ratings incorporating endogenous reputation and a market environment that varies is presented, and the authors find that ratings quality is countercyclical. But, they also show that the presence of naive investors reduces overall quality and competition among CRAs yields similar results.