IDEAS home Printed from https://ideas.repec.org/p/fme/wpaper/85.html
   My bibliography  Save this paper

Incentive separability

Author

Listed:
  • Filip Tokarski

    (Stanford University
    Group for Research in Applied Economics (GRAPE))

  • Joanna Krysta

    (Stanford University
    Group for Research in Applied Economics (GRAPE))

  • Pawel Doligalski

    (Bristol University
    Group for Research in Applied Economics (GRAPE))

  • Piotr Dworczak

    (Northwestern University
    Group for Research in Applied Economics (GRAPE))

Abstract

We consider a general mechanism-design environment in which the planner faces incentive constraints such as the ones resulting from agents' private information or ability to take hidden actions. We study the properties of optimal mechanisms when some decisions are incentive-separable: A set of decisions is incentive-separable if, starting at some initial allocation, perturbing these decisions along agents' indifference curves preserves incentive constraints. We show that, under regularity conditions, the optimal mechanism allows agents to make unrestricted choices over incentive-separable decisions, given some prices and budgets. Using this result, we extend and unify the Atkinson-Stiglitz theorem on the undesirability of differentiated commodity taxes and the Diamond-Mirrlees production efficiency result. We also demonstrate how the analysis of incentive separability can provide a novel justification for in-kind redistribution programs similar to food stamps.

Suggested Citation

  • Filip Tokarski & Joanna Krysta & Pawel Doligalski & Piotr Dworczak, 2023. "Incentive separability," GRAPE Working Papers 85, GRAPE Group for Research in Applied Economics.
    • Handle: RePEc:fme:wpaper:85
    as

    Download full text from publisher

    File URL: http://grape.org.pl/WP/85_Doligalski_website.pdf
    Download Restriction: no
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. J. E. Stiglitz & P. Dasgupta, 1971. "Differential Taxation, Public Goods, and Economic Efficiency," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 38(2), pages 151-174.
    2. Kaplow, Louis, 2006. "On the undesirability of commodity taxation even when income taxation is not optimal," Journal of Public Economics, Elsevier, vol. 90(6-7), pages 1235-1250, August.
    3. Gauthier, Stéphane & Laroque, Guy, 2009. "Separability and public finance," Journal of Public Economics, Elsevier, vol. 93(11-12), pages 1168-1174, December.
    4. Mikhail Golosov & Narayana Kocherlakota & Aleh Tsyvinski, 2003. "Optimal Indirect and Capital Taxation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 70(3), pages 569-587.
    5. Laroque, Guy R., 2005. "Indirect taxation is superfluous under separability and taste homogeneity: a simple proof," Economics Letters, Elsevier, vol. 87(1), pages 141-144, April.
    6. Vidar Christiansen, 1981. "Evaluation of Public Projects under Optimal Taxation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 48(3), pages 447-457.
    7. J. A. Mirrlees, 1971. "An Exploration in the Theory of Optimum Income Taxation," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 38(2), pages 175-208.
    8. Elchanan Ben‐Porath & Eddie Dekel & Barton L. Lipman, 2019. "Mechanisms With Evidence: Commitment and Robustness," Econometrica, Econometric Society, vol. 87(2), pages 529-566, March.
    9. Naito, Hisahiro, 1999. "Re-examination of uniform commodity taxes under a non-linear income tax system and its implication for production efficiency," Journal of Public Economics, Elsevier, vol. 71(2), pages 165-188, February.
    10. Gauthier, Stéphane & Henriet, Fanny, 2018. "Commodity taxes and taste heterogeneity," European Economic Review, Elsevier, vol. 101(C), pages 284-296.
    11. Ordover, Janusz A. & Phelps, Edmund S., 1979. "On the Concept of Optimal Taxation in an Overlapping-Generations Model of Efficient Growth," Working Papers 79-09, C.V. Starr Center for Applied Economics, New York University.
    12. Nichols, Albert L & Zeckhauser, Richard J, 1982. "Targeting Transfers through Restrictions on Recipients," American Economic Review, American Economic Association, vol. 72(2), pages 372-377, May.
    13. Emmanuel Saez, 2001. "Using Elasticities to Derive Optimal Income Tax Rates," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 68(1), pages 205-229.
    14. Ordover, J. A. & Phelps, E. S., 1979. "The concept of optimal taxation in the overlapping-generations model of capital and wealth," Journal of Public Economics, Elsevier, vol. 12(1), pages 1-26, August.
    15. Atkinson, A. B. & Stiglitz, J. E., 1976. "The design of tax structure: Direct versus indirect taxation," Journal of Public Economics, Elsevier, vol. 6(1-2), pages 55-75.
    16. Diamond, Peter A & Mirrlees, James A, 1971. "Optimal Taxation and Public Production II: Tax Rules," American Economic Review, American Economic Association, vol. 61(3), pages 261-278, June.
    17. Diamond, Peter A & Mirrlees, James A, 1971. "Optimal Taxation and Public Production: I--Production Efficiency," American Economic Review, American Economic Association, vol. 61(1), pages 8-27, March.
    18. Mikhail Golosov & Aleh Tsyvinski & Nicolas Werquin, 2014. "A Variational Approach to the Analysis of Tax Systems," NBER Working Papers 20780, National Bureau of Economic Research, Inc.
    19. Helmuth Cremer & Firouz Gahvari & Norbert Ladoux, 2002. "Externalities and Optimal Taxation," Chapters, in: Lawrence H. Goulder (ed.), Environmental Policy Making in Economies with Prior Tax Distortions, chapter 14, pages 210-232, Edward Elgar Publishing.
    20. Robert T. Jensen & Nolan H. Miller, 2010. "A Revealed Preference Approach to Measuring Hunger and Undernutrition," NBER Working Papers 16555, National Bureau of Economic Research, Inc.
    21. Peter Ganong & Jeffrey B. Liebman, 2018. "The Decline, Rebound, and Further Rise in SNAP Enrollment: Disentangling Business Cycle Fluctuations and Policy Changes," American Economic Journal: Economic Policy, American Economic Association, vol. 10(4), pages 153-176, November.
    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. Stiglitz, Joseph E., 2018. "Pareto efficient taxation and expenditures: Pre- and re-distribution," Journal of Public Economics, Elsevier, vol. 162(C), pages 101-119.
    2. Gauthier, Stéphane & Laroque, Guy, 2009. "Separability and public finance," Journal of Public Economics, Elsevier, vol. 93(11-12), pages 1168-1174, December.
    3. Bas Jacobs, 2018. "The marginal cost of public funds is one at the optimal tax system," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 25(4), pages 883-912, August.
    4. Robin Boadway, 2011. "Viewpoint: Innovations in the theory and practice of redistribution policy," Canadian Journal of Economics/Revue canadienne d'économique, John Wiley & Sons, vol. 44(4), pages 1138-1183, November.
    5. Bas Jacobs & A. Bovenberg, 2010. "Human capital and optimal positive taxation of capital income," International Tax and Public Finance, Springer;International Institute of Public Finance, vol. 17(5), pages 451-478, October.
    6. Bas Jacobs, 2010. "The Marginal Cost of Public Funds is One," CESifo Working Paper Series 3250, CESifo.
    7. Jacobs, Bas & de Mooij, Ruud A., 2015. "Pigou meets Mirrlees: On the irrelevance of tax distortions for the second-best Pigouvian tax," Journal of Environmental Economics and Management, Elsevier, vol. 71(C), pages 90-108.
    8. Robin Boadway, 2017. "Second-Best Theory: Ageing well at Sixty," Pacific Economic Review, Wiley Blackwell, vol. 22(2), pages 249-270, May.
    9. Saez, Emmanuel, 2013. "Optimal progressive capital income taxes in the infinite horizon model," Journal of Public Economics, Elsevier, vol. 97(C), pages 61-74.
    10. Saez, Emmanuel & Stantcheva, Stefanie, 2018. "A simpler theory of optimal capital taxation," Journal of Public Economics, Elsevier, vol. 162(C), pages 120-142.
    11. Spencer Bastani & Sebastian Koehne, 2022. "How Should Consumption Be Taxed?," CESifo Working Paper Series 10038, CESifo.
    12. Peter Diamond & Emmanuel Saez, 2011. "The Case for a Progressive Tax: From Basic Research to Policy Recommendations," Journal of Economic Perspectives, American Economic Association, vol. 25(4), pages 165-190, Fall.
    13. Boadway,Robin & Cuff,Katherine, 2022. "Tax Policy," Cambridge Books, Cambridge University Press, number 9781108949453, September.
    14. Fleurbaey, Marc, 2006. "Is commodity taxation unfair?," Journal of Public Economics, Elsevier, vol. 90(10-11), pages 1765-1787, November.
    15. Odd E. Nygård & John T. Revesz, 2015. "Optimal indirect taxation and the uniformity debate: A review of theoretical results and empirical contributions," Discussion Papers 809, Statistics Norway, Research Department.
    16. Joseph E. Stiglitz, 2015. "In Praise of Frank Ramsey's Contribution to the Theory of Taxation," Economic Journal, Royal Economic Society, vol. 0(583), pages 235-268, March.
    17. N. Gregory Mankiw & Matthew Weinzierl & Danny Yagan, 2009. "Optimal Taxation in Theory and Practice," Journal of Economic Perspectives, American Economic Association, vol. 23(4), pages 147-174, Fall.
    18. Bierbrauer Felix J., 2016. "Effizienz oder Gerechtigkeit?: Ungleiche Einkommen, ungleiche Vermögen und Optimale Steuern," Perspektiven der Wirtschaftspolitik, De Gruyter, vol. 17(1), pages 2-24, April.
    19. Lee, David & Saez, Emmanuel, 2012. "Optimal minimum wage policy in competitive labor markets," Journal of Public Economics, Elsevier, vol. 96(9-10), pages 739-749.
    20. Martin Hellwig, 2004. "Optimal Income Taxation, Public-Goods Provision and Public-Sector Pricing: A Contribution to the Foundations of Public Economics," Discussion Paper Series of the Max Planck Institute for Research on Collective Goods 2004_14, Max Planck Institute for Research on Collective Goods.

    More about this item

    Keywords

    equity-efficiency trade-off; separability; optimal taxation;
    All these keywords.

    JEL classification:

    • D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
    • 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:fme:wpaper:85. 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: Jan Hagemejer (email available below). General contact details of provider: https://edirc.repec.org/data/grauwpl.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.