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Coarse Grades: Informing the Public by Withholding Information

  • Rick Harbaugh

    (Department of Business Economics and Public Policy, Indiana University Kelley School of Business)

  • Eric Rasmusen

    (Department of Business Economics and Public Policy, Indiana University Kelley School of Business)

Certifiers of quality often report only coarse grades to the public despite having measured quality more finely, e.g., "Pass" or "Certified" instead of "73 out of 100". Why? We show that coarse grades result in more information being provided to the public because the coarseness encourages those of middling quality to apply for certification. Dropping exact grading in favor of the best coarse grading scheme always reduces public uncertainty because the extra participation outweighs the coarser reporting. In some circumstances, the coarsest meaningful grading scheme, pass-fail grading, is the most informative.

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File URL: http://kelley.iu.edu/riharbau/RePEc/iuk/wpaper/bepp2012-06-harbaugh-rasmusen.pdf
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Paper provided by Indiana University, Kelley School of Business, Department of Business Economics and Public Policy in its series Working Papers with number 2012-06.

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Date of creation: Oct 2012
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Handle: RePEc:iuk:wpaper:2012-06
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  1. Benny Moldovanu & Aner Sela & Xianwen Shi, 2006. "Contests For Status," Working Papers 0604, Ben-Gurion University of the Negev, Department of Economics.
  2. Ostrovsky, Michael & Schwarz, Michael, 2007. "Information Disclosure and Unraveling in Matching Markets," Research Papers 1965, Stanford University, Graduate School of Business.
  3. Emir Kamenica & Matthew Gentzkow, 2011. "Bayesian Persuasion," American Economic Review, American Economic Association, vol. 101(6), pages 2590-2615, October.
  4. Archishman Chakraborty & Rick Harbaugh, 2004. "Comparative Cheap Talk," Working Papers 2004-08, Indiana University, Kelley School of Business, Department of Business Economics and Public Policy.
  5. Roland Bénabou & Jean Tirole, 2005. "Incentives and Prosocial Behavior," NBER Working Papers 11535, National Bureau of Economic Research, Inc.
  6. V. Crawford & J. Sobel, 2010. "Strategic Information Transmission," Levine's Working Paper Archive 544, David K. Levine.
  7. William Chan & Li Hao & Wing Suen, 2007. "A Signaling Theory Of Grade Inflation," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 48(3), pages 1065-1090, 08.
  8. Emmanuel Farhi & Josh Lerner & Jean Tirole, . "Fear of Rejection? Tiered Certification and Transparency," Working Paper 78856, Harvard University OpenScholar.
  9. Morgan, John & Stocken, Phillip C, 2003. " An Analysis of Stock Recommendations," RAND Journal of Economics, The RAND Corporation, vol. 34(1), pages 183-203, Spring.
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