IDEAS home Printed from https://ideas.repec.org/p/nbr/nberwo/33544.html
   My bibliography  Save this paper

Equity Prices, Market Power, and Optimal Corporate Tax Policy

Author

Listed:
  • Ignacio González
  • Juan A. Montecino
  • Joseph E. Stiglitz

Abstract

We study the optimal design of corporate tax policy in a textbook life-cycle model featuring two key deviations: (i) firms are imperfectly competitive and (ii) households save by purchasing equity shares in a stock market. In this simple environment, the financial wealth of savers is equal to the sum of the productive capital owned by firms and a component capturing the NPV of unproductive rents – what we term “market power wealth” (MPW). We show that this novel component has non-trivial macroeconomic effects, with important implications for optimal corporate tax policy. In particular, MPW significantly crowds out productive investment and accordingly can rationalize a high corporate tax rate. The optimal corporate tax code in our setting assigns the statutory corporate tax rate to target the financial value of pure profits while incentivizing capital accumulation with a partial expensing of firm investment costs.

Suggested Citation

  • Ignacio González & Juan A. Montecino & Joseph E. Stiglitz, 2025. "Equity Prices, Market Power, and Optimal Corporate Tax Policy," NBER Working Papers 33544, National Bureau of Economic Research, Inc.
    • Handle: RePEc:nbr:nberwo:33544
    Note: CF PE POL
    as

    Download full text from publisher

    File URL: http://www.nber.org/papers/w33544.pdf
    Download Restriction: Access to the full text is generally limited to series subscribers, however if the top level domain of the client browser is in a developing country or transition economy free access is provided. More information about subscriptions and free access is available at http://www.nber.org/wwphelp.html. Free access is also available to older working papers.
    ---><---

    As the access to this document is restricted, you may want to look for a different version below or

    for a different version of it.

    Other versions of this item:

    References listed on IDEAS

    as
    1. repec:bin:bpeajo:v:49:y:2019:i:2018-01:p:257-345 is not listed on IDEAS
    2. Kenneth L. Judd, 1997. "The Optimal Tax Rate for Capital Income is Negative," NBER Working Papers 6004, National Bureau of Economic Research, Inc.
    3. Emmanuel Farhi & Francois Gourio, 2018. "Accounting for Macro-Finance Trends: Market Power, Intangibles, and Risk Premia," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 49(2 (Fall)), pages 147-250.
    4. David Autor & David Dorn & Lawrence F Katz & Christina Patterson & John Van Reenen, 2020. "The Fall of the Labor Share and the Rise of Superstar Firms [“Automation and New Tasks: How Technology Displaces and Reinstates Labor”]," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 135(2), pages 645-709.
    5. Orhan Erem Atesagaoglu & Hakki Yazici, 2021. "Optimal Taxation of Capital in the Presence of Declining Labor Share," Bristol Economics Discussion Papers 21/739, School of Economics, University of Bristol, UK.
    6. Andrew Atkeson & V. V. Chari & Patrick J. Kehoe, 1999. "Taxing capital income: a bad idea," Quarterly Review, Federal Reserve Bank of Minneapolis, vol. 23(Sum), pages 3-17.
    7. Van Reenen, John, 2018. "Increasing differences between firms: market power and the macro-economy," LSE Research Online Documents on Economics 91698, London School of Economics and Political Science, LSE Library.
    8. Aghion, Philippe & Howitt, Peter, 1992. "A Model of Growth through Creative Destruction," Econometrica, Econometric Society, vol. 60(2), pages 323-351, March.
    9. Peretto, Pietro F., 2007. "Corporate taxes, growth and welfare in a Schumpeterian economy," Journal of Economic Theory, Elsevier, vol. 137(1), pages 353-382, November.
    10. Eggertsson, Gauti B. & Robbins, Jacob A. & Wold, Ella Getz, 2021. "Kaldor and Piketty’s facts: The rise of monopoly power in the United States," Journal of Monetary Economics, Elsevier, vol. 124(S), pages 19-38.
    11. Robert J. Barro & Jason Furman, 2018. "Macroeconomic Effects of the 2017 Tax Reform," Brookings Papers on Economic Activity, Economic Studies Program, The Brookings Institution, vol. 49(1 (Spring), pages 257-345.
    12. Eeckhout, Jan & Fu, Chunyang & Li, Wenjian & Weng, Xi, 2021. "Optimal Taxation and Market Power," CEPR Discussion Papers 16011, C.E.P.R. Discussion Papers.
    13. Stiglitz, Joseph E., 1976. "The corporation tax," Journal of Public Economics, Elsevier, vol. 5(3-4), pages 303-311.
    14. Kenneth L. Judd, 2002. "Capital-Income Taxation with Imperfect Competition," American Economic Review, American Economic Association, vol. 92(2), pages 417-421, May.
    15. Jan De Loecker & Jan Eeckhout & Gabriel Unger, 2020. "The Rise of Market Power and the Macroeconomic Implications [“Econometric Tools for Analyzing Market Outcomes”]," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 135(2), pages 561-644.
    16. Chamley, Christophe, 1986. "Optimal Taxation of Capital Income in General Equilibrium with Infinite Lives," Econometrica, Econometric Society, vol. 54(3), pages 607-622, May.
    17. Guo, Jang-Ting & Lansing, Kevin J., 1999. "Optimal taxation of capital income with imperfectly competitive product markets," Journal of Economic Dynamics and Control, Elsevier, vol. 23(7), pages 967-995, June.
    18. Daniel L. Greenwald & Martin Lettau & Sydney C. Ludvigson, 2019. "How the Wealth Was Won: Factor Shares as Market Fundamentals," NBER Working Papers 25769, National Bureau of Economic Research, Inc.
    19. Susanto Basu, 2019. "Are Price-Cost Markups Rising in the United States? A Discussion of the Evidence," Journal of Economic Perspectives, American Economic Association, vol. 33(3), pages 3-22, Summer.
    20. Magill, Michael & Quinzii, Martine, 2003. "Nonshiftable capital, affine price expectations and convergence to the Golden Rule," Journal of Mathematical Economics, Elsevier, vol. 39(3-4), pages 239-272, June.
    21. Judd, Kenneth L., 1985. "Redistributive taxation in a simple perfect foresight model," Journal of Public Economics, Elsevier, vol. 28(1), pages 59-83, October.
    22. Pierre Lafourcade, 2003. "Asset prices and rents in a GE model with imperfect competition," Finance and Economics Discussion Series 2003-60, Board of Governors of the Federal Reserve System (U.S.).
    23. Evsey D. Domar & Richard A. Musgrave, 1944. "Proportional Income Taxation and Risk-Taking," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 58(3), pages 388-422.
    24. Orhan Erem Atesagaoglu & Hakki Yazici, 2021. "Optimal Taxation of Capital in the Presence of Declining Labor Share," CESifo Working Paper Series 9101, CESifo.
    25. Susanto Basu, 2019. "Are Price-Cost Markups Rising in the United States? A Discussion of the Evidence," NBER Working Papers 26057, National Bureau of Economic Research, Inc.
    26. Eeckhout, Jan & De loecker, Jan, 2018. "Global Market Power," CEPR Discussion Papers 13009, C.E.P.R. Discussion Papers.
    27. Stiglitz, Joseph E., 1973. "Taxation, corporate financial policy, and the cost of capital," Journal of Public Economics, Elsevier, vol. 2(1), pages 1-34, February.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Louis Kaplow, 2024. "Optimal Income Taxation," Journal of Economic Literature, American Economic Association, vol. 62(2), pages 637-738, June.
    2. Maarten De Ridder, 2024. "Market Power and Innovation in the Intangible Economy," American Economic Review, American Economic Association, vol. 114(1), pages 199-251, January.
    3. Gregor Schwerhoff & Ottmar Edenhofer & Marc Fleurbaey, 2020. "Taxation Of Economic Rents," Journal of Economic Surveys, Wiley Blackwell, vol. 34(2), pages 398-423, April.
    4. Koskela Erkki & Thadden Leopold von, 2008. "Optimal Factor Taxation under Wage Bargaining: A Dynamic Perspective," German Economic Review, De Gruyter, vol. 9(2), pages 135-159, May.
    5. Mumtaz Ahmad & John Fernald & Hashmat Khan, 2019. "Returns to Scale in U.S. Production, Redux," Carleton Economic Papers 19-07, Carleton University, Department of Economics.
    6. Chen, Ping-Ho & Chu, Angus C. & Chu, Hsun & Lai, Ching-Chong, 2023. "Optimal capital taxation in an economy with innovation-driven growth," Macroeconomic Dynamics, Cambridge University Press, vol. 27(3), pages 635-668, April.
    7. Mondolo, Jasmine, 2021. "Macroeconomic dynamics and the role of market power. The case of Italy," MPRA Paper 110172, University Library of Munich, Germany, revised 05 Oct 2021.
    8. Jasmine Mondolo, 2021. "Macroeconomic dynamics and the role of market power. The case of Italy," DEM Working Papers 2021/17, Department of Economics and Management.
    9. Ugur, Mehmet, 2024. "Innovation, market power and the labour share: Evidence from OECD industries," Technological Forecasting and Social Change, Elsevier, vol. 203(C).
    10. Corhay, Alexandre & Kung, Howard & Schmid, Lukas, 2025. "Q: Risk, rents, or growth?," Journal of Financial Economics, Elsevier, vol. 165(C).
    11. Díez, Federico J. & Fan, Jiayue & Villegas-Sánchez, Carolina, 2021. "Global declining competition?," Journal of International Economics, Elsevier, vol. 132(C).
    12. Ensar Yılmaz & Zeynep Kaplan, 2022. "Heterogeneity of market power: firm-level evidence," Economic Change and Restructuring, Springer, vol. 55(2), pages 1207-1228, May.
    13. James B. Davies & Jinli Zeng & Jie Zhang, 2009. "Time‐consistent taxation in a dynastic family model with human and physical capital and a balanced government budget," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 42(3), pages 1023-1049, August.
    14. Kyoji Fukao & Cristiano Perugini, 2021. "The Long‐Run Dynamics of the Labor Share in Japan," Review of Income and Wealth, International Association for Research in Income and Wealth, vol. 67(2), pages 445-480, June.
    15. Eggertsson, Gauti B. & Robbins, Jacob A. & Wold, Ella Getz, 2021. "Kaldor and Piketty’s facts: The rise of monopoly power in the United States," Journal of Monetary Economics, Elsevier, vol. 124(S), pages 19-38.
    16. Javier Coto-Martínez & Carlos Garriga & Fernando Sánchez-Losada, 2007. "Optimal Taxation with Imperfect Competition and Aggregate Returns to Specialization," Journal of the European Economic Association, MIT Press, vol. 5(6), pages 1269-1299, December.
    17. Tang Jenn-Hong, 2020. "Ramsey income taxation in a small open economy with trade in capital goods," The B.E. Journal of Macroeconomics, De Gruyter, vol. 20(1), pages 1-48, January.
    18. Germán Gutiérrez & Callum Jones & Thomas Philippon, 2019. "Entry Costs and the Macroeconomy," NBER Working Papers 25609, National Bureau of Economic Research, Inc.
    19. Barkai, Simcha & Benzell, Seth G., 2024. "70 years of US corporate profits," Journal of Corporate Finance, Elsevier, vol. 87(C).
    20. Mino, Kazuo, 2001. "Optimal taxation in dynamic economies with increasing returns," Japan and the World Economy, Elsevier, vol. 13(3), pages 235-253, August.

    More about this item

    JEL classification:

    • E20 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - General (includes Measurement and Data)
    • G12 - Financial Economics - - General Financial Markets - - - Asset Pricing; Trading Volume; Bond Interest Rates
    • H21 - Public Economics - - Taxation, Subsidies, and Revenue - - - Efficiency; Optimal Taxation

    NEP fields

    This paper has been announced in the following NEP Reports:

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nbr:nberwo:33544. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/nberrus.html .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.