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Ziliak and McCloskey's Criticisms of Significance Tests: An Assessment

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  • Thomas Mayer
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    Abstract

    Stephen Ziliak and D. N. McCloskey have sharply criticized the prevailing use of significance tests. Their work has, in turn, come under vigorous attack. The vehemence of the debate may induce readers to wrongly dismiss it as a “he said-she said” debate, or else to take sides in an unbending way that does not do justice to valid points raised by the other side. This paper aims at a more balanced reading. While Ziliak and McCloskey claim that a substantial majority of economists who use significance tests confuse statistical with substantive significance, or commit the logical error of the transposed conditional, I argue that such errors are much less frequent than they claim, though still much too pervasive. They also argue that since significance tests focus on the existence of an effect rather than on its size, the tests do not answer scientific questions. I respond with counter-examples. Ziliak and McCloskey also complain that significance tests ignore loss functions. I argue that loss functions should be introduced only at a later stage. Ziliak and McCloskey are correct, however, that confidence intervals deserve much more emphasis. The most valuable message of their work is that significance tests should be treated less mechanically.

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    Bibliographic Info

    Article provided by Econ Journal Watch in its journal Econ Journal Watch.

    Volume (Year): 9 (2012)
    Issue (Month): 3 (September)
    Pages: 256-297

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    Handle: RePEc:ejw:journl:v:9:y:2012:i:3:p:256-297

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    Keywords: Significance tests; t’s; p’s; confidence intervals; Ziliak; McCloskey; oomph;

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    Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
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    1. Perotti, Roberto & Alesina, Alberto, 1997. "The Welfare State and Competitiveness," Scholarly Articles 4553027, Harvard University Department of Economics.
    2. Kevin Hoover & Mark Siegler, 2008. "Sound and fury: McCloskey and significance testing in economics," Journal of Economic Methodology, Taylor & Francis Journals, vol. 15(1), pages 1-37.
    3. Glenn Ellison & Edward L. Glaeser & William R. Kerr, 2007. "What Causes Industry Agglomeration? Evidence from Coagglomeration Patterns," Harvard Business School Working Papers 07-064, Harvard Business School.
    4. Martha J. Bailey, 2010. ""Momma's Got the Pill": How Anthony Comstock and Griswold v. Connecticut Shaped US Childbearing," American Economic Review, American Economic Association, vol. 100(1), pages 98-129, March.
    5. Milton Friedman, 1957. "A Theory of the Consumption Function," NBER Books, National Bureau of Economic Research, Inc, number frie57-1, octubre-d.
    6. Bloom, David E & Cavanagh, Christopher L, 1986. "An Analysis of the Selection of Arbitrators," American Economic Review, American Economic Association, vol. 76(3), pages 408-22, June.
    7. Christina D. Romer & David H. Romer, 2010. "The Macroeconomic Effects of Tax Changes: Estimates Based on a New Measure of Fiscal Shocks," American Economic Review, American Economic Association, vol. 100(3), pages 763-801, June.
    8. Pontiff, Jeffrey, 1997. "Excess Volatility and Closed-End Funds," American Economic Review, American Economic Association, vol. 87(1), pages 155-69, March.
    9. Brodeur, Abel & Lé, Mathias & Sangnier, Marc & Zylberberg, Yanos, 2013. "Star Wars: The Empirics Strike Back," IZA Discussion Papers 7268, Institute for the Study of Labor (IZA).
    10. Mendelsohn, Robert & Nordhaus, William D & Shaw, Daigee, 1994. "The Impact of Global Warming on Agriculture: A Ricardian Analysis," American Economic Review, American Economic Association, vol. 84(4), pages 753-71, September.
    11. repec:hal:wpaper:halshs-00710122 is not listed on IDEAS
    12. Feenstra, Robert C, 1994. "New Product Varieties and the Measurement of International Prices," American Economic Review, American Economic Association, vol. 84(1), pages 157-77, March.
    13. Kevin Hoover & Mark Siegler, 2008. "The rhetoric of 'Signifying nothing': a rejoinder to Ziliak and McCloskey," Journal of Economic Methodology, Taylor & Francis Journals, vol. 15(1), pages 57-68.
    14. Keuzenkamp, H.A. & Magnus, J.R., 1995. "On tests and significance in econometrics," Open Access publications from Tilburg University urn:nbn:nl:ui:12-153236, Tilburg University.
    15. Deirdre McCloskey & Stephen Ziliak, 2008. "Signifying nothing: reply to Hoover and Siegler," Journal of Economic Methodology, Taylor & Francis Journals, vol. 15(1), pages 39-55.
    16. Mayer, Thomas, 1980. "Economics as a Hard Science: Realistic Goal or Wishful Thinking?," Economic Inquiry, Western Economic Association International, vol. 18(2), pages 165-78, April.
    17. Gigerenzer, Gerd, 2004. "Mindless statistics," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 33(5), pages 587-606, November.
    18. Borjas, George J, 1995. "Ethnicity, Neighborhoods, and Human-Capital Externalities," American Economic Review, American Economic Association, vol. 85(3), pages 365-90, June.
    19. Carol A. Corrado & Charles R. Hulten & Daniel E. Sichel, 2006. "Intangible Capital and Economic Growth," NBER Working Papers 11948, National Bureau of Economic Research, Inc.
    20. Erhan Artuc & Shubham Chaudhuri & John McLaren, 2007. "Trade Shocks and Labor Adjustment: A Structural Empirical Approach," NBER Working Papers 13465, National Bureau of Economic Research, Inc.
    21. Johnson, William R & Skinner, Jonathan, 1986. "Labor Supply and Marital Separation," American Economic Review, American Economic Association, vol. 76(3), pages 455-69, June.
    22. O'Brien, Anthony Patrick, 2004. "Why is the standard error of regression so low using historical data?: Comments on "size matters"," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 33(5), pages 565-570, November.
    23. Ayres, Ian & Siegelman, Peter, 1995. "Race and Gender Discrimination in Bargaining for a New Car," American Economic Review, American Economic Association, vol. 85(3), pages 304-21, June.
    24. Alesina, Alberto & Perotti, Roberto, 1997. "The Welfare State and Competitiveness," American Economic Review, American Economic Association, vol. 87(5), pages 921-39, December.
    25. Trejo, Stephen J, 1991. "The Effects of Overtime Pay Regulation on Worker Compensation," American Economic Review, American Economic Association, vol. 81(4), pages 719-40, September.
    26. Keuzenkamp, Hugo A. & Magnus, Jan R., 1995. "On tests and significance in econometrics," Journal of Econometrics, Elsevier, vol. 67(1), pages 5-24, May.
    27. Wolff, Edward N, 1991. "Capital Formation and Productivity Convergence over the Long Term," American Economic Review, American Economic Association, vol. 81(3), pages 565-79, June.
    28. Berg, Nathan, 2004. "No-decision classification: an alternative to testing for statistical significance," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 33(5), pages 631-650, November.
    29. Frederic S. Mishkin, 1981. "Does Anticipated Aggregate Demand Policy Matter? Further Econometric results," NBER Working Papers 0789, National Bureau of Economic Research, Inc.
    30. Sachs, Jeffrey, 1980. "The Changing Cyclical Behavior of Wages and Prices: 1890-1976," American Economic Review, American Economic Association, vol. 70(1), pages 78-90, March.
    31. Atif Mian & Amir Sufi & Francesco Trebbi, 2010. "The Political Economy of the US Mortgage Default Crisis," American Economic Review, American Economic Association, vol. 100(5), pages 1967-98, December.
    32. Michael R. Darby, 1981. "The Price of Oil and World Inflation and Recession," UCLA Economics Working Papers 228, UCLA Department of Economics.
    33. Froyen, Richard T & Waud, Roger N, 1980. "Further International Evidence of Output-Inflation Tradeoffs," American Economic Review, American Economic Association, vol. 70(3), pages 409-21, June.
    34. Woodbury, Stephen A & Spiegelman, Robert G, 1987. "Bonuses to Workers and Employers to Reduce Unemployment: Randomized Trials in Illinois," American Economic Review, American Economic Association, vol. 77(4), pages 513-30, September.
    35. Ann Harrison & Jason Scorse, 2010. "Multinationals and Anti-sweatshop Activism," American Economic Review, American Economic Association, vol. 100(1), pages 247-73, March.
    36. Milton Friedman, 1957. "Introduction to "A Theory of the Consumption Function"," NBER Chapters, in: A Theory of the Consumption Function, pages 1-6 National Bureau of Economic Research, Inc.
    37. Hendricks, Kenneth & Porter, Robert H, 1996. "The Timing and Incidence of Exploratory Drilling on Offshore Wildcat Tracts," American Economic Review, American Economic Association, vol. 86(3), pages 388-407, June.
    38. Stekler, H.O., 2007. "Significance tests harm progress in forecasting: Comment," International Journal of Forecasting, Elsevier, vol. 23(2), pages 329-330.
    39. Acs, Zoltan J & Audretsch, David B, 1988. "Innovation in Large and Small Firms: An Empirical Analysis," American Economic Review, American Economic Association, vol. 78(4), pages 678-90, September.
    40. LaLonde, Robert J, 1986. "Evaluating the Econometric Evaluations of Training Programs with Experimental Data," American Economic Review, American Economic Association, vol. 76(4), pages 604-20, September.
    41. Joskow, Paul L, 1987. "Contract Duration and Relationship-Specific Investments: Empirical Evidence from Coal Markets," American Economic Review, American Economic Association, vol. 77(1), pages 168-85, March.
    42. Angrist, Joshua D & Evans, William N, 1998. "Children and Their Parents' Labor Supply: Evidence from Exogenous Variation in Family Size," American Economic Review, American Economic Association, vol. 88(3), pages 450-77, June.
    43. Amitabh Chandra & Jonathan Gruber & Robin McKnight, 2010. "Patient Cost-Sharing and Hospitalization Offsets in the Elderly," American Economic Review, American Economic Association, vol. 100(1), pages 193-213, March.
    44. Garber, Peter M, 1986. "Nominal Contracts in a Bimetallic Standard," American Economic Review, American Economic Association, vol. 76(5), pages 1012-30, December.
    45. Meredith Fowlie, 2010. "Emissions Trading, Electricity Restructuring, and Investment in Pollution Abatement," American Economic Review, American Economic Association, vol. 100(3), pages 837-69, June.
    46. Sauer, Raymond D & Leffler, Keith B, 1990. "Did the Federal Trade Commission's Advertising Substantiation Program Promote More Credible Advertising?," American Economic Review, American Economic Association, vol. 80(1), pages 191-203, March.
    47. Zellner, Arnold, 2004. "To test or not to test and if so, how?: Comments on "size matters"," Journal of Behavioral and Experimental Economics (formerly The Journal of Socio-Economics), Elsevier, vol. 33(5), pages 581-586, November.
    48. Josh Lerner & Ulrike Malmendier, 2005. "Contractibility and the Design of Research Agreements," NBER Working Papers 11292, National Bureau of Economic Research, Inc.
    49. H. D. Vinod & B. D. McCullough, 1999. "The Numerical Reliability of Econometric Software," Journal of Economic Literature, American Economic Association, vol. 37(2), pages 633-665, June.
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    Cited by:
    1. Alexander Libman & Joachim Zweynert, 2014. "Ceremonial Science: The State of Russian Economics Seen Through the Lens of the Work of ‘Doctor of Science’ Candidates," Working Papers 337, Institut für Ost- und Südosteuropaforschung (Institute for East and South-East European Studies).
    2. Thomas Mayer, 2013. "Reply to Deirdre McCloskey and Stephen Ziliak on Statistical Significance," Econ Journal Watch, Econ Journal Watch, vol. 10(1), pages 87-96, January.

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