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Is it different for zeros? Discriminating between models for non-negative data with many zeros

Author

Listed:
  • Joao Santos Silva Santos Silva

    (Institute for Fiscal Studies)

  • Silvana Tenreyro

    (Institute for Fiscal Studies)

  • Frank Windmeijer

    (Institute for Fiscal Studies and University of Bristol)

Abstract

In many economic applications, the variate of interest is non-negative and its distribution is characterized by a mass-point at zero and a long right-tail. Many regression strategies have been proposed to deal with data of this type. Although there has been a long debate in the literature on the appropriateness of different models, formal statistical tests to choose between the competing specifications, or to assess the validity of the preferred model, are not often used in practice. In this paper we propose a novel and simple regression-based specification test that can be used to test these models against each other.

Suggested Citation

  • Joao Santos Silva Santos Silva & Silvana Tenreyro & Frank Windmeijer, 2010. "Is it different for zeros? Discriminating between models for non-negative data with many zeros," CeMMAP working papers CWP20/10, Centre for Microdata Methods and Practice, Institute for Fiscal Studies.
    • Handle: RePEc:ifs:cemmap:20/10
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    File URL: http://cemmap.ifs.org.uk/wps/cwp2010.pdf
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    References listed on IDEAS

    as
    1. James E. Anderson & Eric van Wincoop, 2003. "Gravity with Gravitas: A Solution to the Border Puzzle," American Economic Review, American Economic Association, vol. 93(1), pages 170-192, March.
    2. J. M. C. Santos Silva, 2001. "A score test for non-nested hypotheses with applications to discrete data models," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 16(5), pages 577-597.
    3. Santos Silva, J.M.C. & Tenreyro, Silvana, 2011. "Further simulation evidence on the performance of the Poisson pseudo-maximum likelihood estimator," Economics Letters, Elsevier, vol. 112(2), pages 220-222, August.
    4. J. M. C. Santos Silva & Silvana Tenreyro, 2006. "The Log of Gravity," The Review of Economics and Statistics, MIT Press, vol. 88(4), pages 641-658, November.
    5. Costas Arkolakis & Arnaud Costinot & Andres Rodriguez-Clare, 2012. "New Trade Models, Same Old Gains?," American Economic Review, American Economic Association, vol. 102(1), pages 94-130, February.
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    2. Cooke, Edgar F A, 2011. "The impact of trade preferences on exports of developing countries: the case of the AGOA and CBI preferences of the USA," MPRA Paper 31439, University Library of Munich, Germany.
    3. Stelios Michalopoulos & Elias Papaioannou, 2016. "The Long-Run Effects of the Scramble for Africa," American Economic Review, American Economic Association, vol. 106(7), pages 1802-1848, July.
    4. Nico Voigtländer & Hans-Joachim Voth, 2012. "Persecution Perpetuated: The Medieval Origins of Anti-Semitic Violence in Nazi Germany," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 127(3), pages 1339-1392.
    5. Prehn, Soren & Brümmer, Bernhard, 2011. "Estimation Issues in Single Commodity Gravity Trade Models," 2011 International Congress, August 30-September 2, 2011, Zurich, Switzerland 114776, European Association of Agricultural Economists.
    6. Stelios Michalopoulos & Elias Papaioannou, 2010. "Divide and Rule or the Rule of the Divided? Evidence from Africa," Discussion Papers Series, Department of Economics, Tufts University 0756, Department of Economics, Tufts University.

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