IDEAS home Printed from https://ideas.repec.org/a/wly/jmoncb/v45y2013i8p1477-1516.html
   My bibliography  Save this article

Fiscal Sustainability in a New Keynesian Model

Author

Listed:
  • CAMPBELL LEITH
  • SIMON WREN‐LEWIS

Abstract

Recent work on optimal monetary and fiscal policy in New Keynesian models suggests that it is optimal to allow steady‐state debt to follow a random walk. In this paper we consider the nature of the time inconsistency involved in such a policy and its implication for discretionary policymaking. We show that governments are tempted, given inflationary expectations, to utilize their monetary and fiscal instruments in the initial period to change the ultimate debt burden they need to service. We demonstrate that this temptation is only eliminated if following shocks, the new steady‐state debt is equal to the original (efficient) debt level even though there is no explicit debt target in the government's objective function. Analytically and in a series of numerical simulations we show which instrument is used to stabilize the debt depends crucially on the degree of nominal inertia and the size of the debt stock. We also show that the welfare consequences of introducing debt are negligible for precommitment policies, but can be significant for discretionary policy. Finally, we assess the credibility of commitment policy by considering a quasi‐commitment policy, which allows for different probabilities of reneging on past promises.

Suggested Citation

  • Campbell Leith & Simon Wren‐Lewis, 2013. "Fiscal Sustainability in a New Keynesian Model," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 45(8), pages 1477-1516, December.
  • Handle: RePEc:wly:jmoncb:v:45:y:2013:i:8:p:1477-1516
    DOI: 10.1111/jmcb.12060
    as

    Download full text from publisher

    File URL: https://doi.org/10.1111/jmcb.12060
    Download Restriction: no

    File URL: https://libkey.io/10.1111/jmcb.12060?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Other versions of this item:

    References listed on IDEAS

    as
    1. Frank Smets & Raf Wouters, 2005. "Comparing shocks and frictions in US and euro area business cycles: a Bayesian DSGE Approach," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 20(2), pages 161-183.
    2. Soderlind, Paul, 1999. "Solution and estimation of RE macromodels with optimal policy," European Economic Review, Elsevier, vol. 43(4-6), pages 813-823, April.
    3. Huixin Bi & Eric M. Leeper & Campbell Leith, 2013. "Uncertain Fiscal Consolidations," Economic Journal, Royal Economic Society, vol. 0, pages 31-63, February.
    4. Levine, Paul & McAdam, Peter & Pearlman, Joseph, 2008. "Quantifying and sustaining welfare gains from monetary commitment," Journal of Monetary Economics, Elsevier, vol. 55(7), pages 1253-1276, October.
    5. Javier Diaz-Gimenez & Giorgia Giovannetti & Ramon Marimon & Pedro Teles, 2008. "Nominal Debt as a Burden on Monetary Policy," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 11(3), pages 493-514, July.
    6. Christoph Himmels & Tatiana Kirsanova, 2011. "Expectations Traps and Monetary Policy with Limited Commitment," Discussion Papers 1102, University of Exeter, Department of Economics.
    7. Schmitt-Grohe, Stephanie & Uribe, Martin, 2004. "Optimal fiscal and monetary policy under sticky prices," Journal of Economic Theory, Elsevier, vol. 114(2), pages 198-230, February.
    8. Leith, Campbell & von Thadden, Leopold, 2008. "Monetary and fiscal policy interactions in a New Keynesian model with capital accumulation and non-Ricardian consumers," Journal of Economic Theory, Elsevier, vol. 140(1), pages 279-313, May.
    9. Fernando Martin, 2009. "A Positive Theory of Government Debt," Review of Economic Dynamics, Elsevier for the Society for Economic Dynamics, vol. 12(4), pages 608-631, October.
    10. Beetsma, Roel M. W. J. & Jensen, Henrik, 2004. "Mark-up fluctuations and fiscal policy stabilization in a monetary union," Journal of Macroeconomics, Elsevier, vol. 26(2), pages 357-376, June.
    11. Tatiana Kirsanova & Campbell Leith & Simon Wren‐Lewis, 2009. "Monetary and Fiscal Policy Interaction: The Current Consensus Assignment in the Light of Recent Developments," Economic Journal, Royal Economic Society, vol. 119(541), pages 482-496, November.
    12. Maurice Obstfeld, 1989. "Dynamic Seigniorage Theory: An Exploration," NBER Working Papers 2869, National Bureau of Economic Research, Inc.
    13. Florin O. Bilbiie & Fabio Ghironi & Marc J. Melitz, 2019. "Monopoly Power and Endogenous Product Variety: Distortions and Remedies," American Economic Journal: Macroeconomics, American Economic Association, vol. 11(4), pages 140-174, October.
    14. Ellison, Martin & Rankin, Neil, 2007. "Optimal monetary policy when lump-sum taxes are unavailable: A reconsideration of the outcomes under commitment and discretion," Journal of Economic Dynamics and Control, Elsevier, vol. 31(1), pages 219-243, January.
    15. Lucas, Robert Jr. & Stokey, Nancy L., 1983. "Optimal fiscal and monetary policy in an economy without capital," Journal of Monetary Economics, Elsevier, vol. 12(1), pages 55-93.
    16. Obstfeld, Maurice, 1997. "Dynamic Seigniorage Theory," Macroeconomic Dynamics, Cambridge University Press, vol. 1(3), pages 588-614, September.
    17. Schaumburg, Ernst & Tambalotti, Andrea, 2007. "An investigation of the gains from commitment in monetary policy," Journal of Monetary Economics, Elsevier, vol. 54(2), pages 302-324, March.
    18. Leith, Campbell & Malley, Jim, 2005. "Estimated general equilibrium models for the evaluation of monetary policy in the US and Europe," European Economic Review, Elsevier, vol. 49(8), pages 2137-2159, November.
    19. Schmitt-Grohe, Stephanie & Uribe, Martin, 2004. "Optimal fiscal and monetary policy under imperfect competition," Journal of Macroeconomics, Elsevier, vol. 26(2), pages 183-209, June.
    20. Alberto Alesina & Silvia Ardagna, 2010. "Large Changes in Fiscal Policy: Taxes versus Spending," NBER Chapters, in: Tax Policy and the Economy, Volume 24, pages 35-68, National Bureau of Economic Research, Inc.
    21. Peter N. Ireland, 2004. "Technology Shocks in the New Keynesian Model," The Review of Economics and Statistics, MIT Press, vol. 86(4), pages 923-936, November.
    22. repec:ags:aaea07:419 is not listed on IDEAS
    23. Barro, Robert J, 1979. "On the Determination of the Public Debt," Journal of Political Economy, University of Chicago Press, vol. 87(5), pages 940-971, October.
    24. Pierpaolo Benigno & Michael Woodford, 2004. "Optimal Monetary and Fiscal Policy: A Linear-Quadratic Approach," NBER Chapters, in: NBER Macroeconomics Annual 2003, Volume 18, pages 271-364, National Bureau of Economic Research, Inc.
    25. Leeper, Eric M., 1991. "Equilibria under 'active' and 'passive' monetary and fiscal policies," Journal of Monetary Economics, Elsevier, vol. 27(1), pages 129-147, February.
    26. repec:edn:sirdps:398 is not listed on IDEAS
    27. Campbell Leith & Simon Wren-Lewis, 2012. "Fiscal Sustainability in a New Keynesian Model - Additional Appendix," Working Papers 2012_13, Business School - Economics, University of Glasgow.
    28. Obstfeld, Maurice, 1991. "A model of currency depreciation and the debt-inflation spiral," Journal of Economic Dynamics and Control, Elsevier, vol. 15(1), pages 151-177.
    29. Bernheim, B Douglas, 1991. "Optimal Fiscal and Monetary Policy: Some Recent Results," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 23(3), pages 540-542, August.
    30. Anderson, Gary S. & Kim, Jinill & Yun, Tack, 2010. "Using a projection method to analyze inflation bias in a micro-founded model," Journal of Economic Dynamics and Control, Elsevier, vol. 34(9), pages 1572-1581, September.
    31. Leith, Campbell & Wren-Lewis, Simon, 2006. "Compatibility between monetary and fiscal policy under EMU," European Economic Review, Elsevier, vol. 50(6), pages 1529-1556, August.
    32. Levine, Paul & Pearlman, Joseph, 2011. "Computation of LQ Approximations to Optimal Policy Problems in Different Information Settings under Zero Lower Bound Constraints," Dynare Working Papers 10, CEPREMAP.
    33. Niemann, S & Pichler, P & Sorger, G, 2008. "Optimal Fiscal and Monetary Policy Without Commitment," Economics Discussion Papers 2897, University of Essex, Department of Economics.
    34. Nicolini, Juan Pablo, 1998. "More on the time consistency of monetary policy," Journal of Monetary Economics, Elsevier, vol. 41(2), pages 333-350, April.
    35. Richard Clarida & Jordi Gali & Mark Gertler, 2001. "Optimal Monetary Policy in Open versus Closed Economies: An Integrated Approach," American Economic Review, American Economic Association, vol. 91(2), pages 248-252, May.
    36. Chari, V V & Christiano, Lawrence J & Kehoe, Patrick J, 1991. "Optimal Fiscal and Monetary Policy: Some Recent Results," Journal of Money, Credit and Banking, Blackwell Publishing, vol. 23(3), pages 519-539, August.
    37. Campbell Leith & Simon Wren-lewis, 2006. "The Costs of Fiscal Inflexibility," WEF Working Papers 0005, ESRC World Economy and Finance Research Programme, Birkbeck, University of London.
    38. Leith, Campbell & Wren-Lewis, Simon, 2000. "Interactions between Monetary and Fiscal Policy Rules," Economic Journal, Royal Economic Society, vol. 110(462), pages 93-108, March.
    39. Lombardo, Giovanni & Sutherland, Alan, 2004. "Monetary and fiscal interactions in open economies," Journal of Macroeconomics, Elsevier, vol. 26(2), pages 319-347, June.
    40. Debortoli, Davide & Nunes, Ricardo, 2010. "Fiscal policy under loose commitment," Journal of Economic Theory, Elsevier, vol. 145(3), pages 1005-1032, May.
    41. Gali, Jordi, 1994. "Government size and macroeconomic stability," European Economic Review, Elsevier, vol. 38(1), pages 117-132, January.
    42. repec:ags:aaea07:398 is not listed on IDEAS
    43. Gilles Oudiz & Jeffrey Sachs, 1985. "International Policy Coordination in Dynamic Macroeconomic Models," NBER Chapters, in: International Economic Policy Coordination, pages 274-330, National Bureau of Economic Research, Inc.
    44. Paul Klein & Per Krusell & José-Víctor Ríos-Rull, 2008. "Time-Consistent Public Policy," The Review of Economic Studies, Review of Economic Studies Ltd, vol. 75(3), pages 789-808.
    45. Calvo, Guillermo A., 1983. "Staggered prices in a utility-maximizing framework," Journal of Monetary Economics, Elsevier, vol. 12(3), pages 383-398, September.
    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. Bai, Yuting & Kirsanova, Tatiana & Leith, Campbell, 2017. "Nominal targeting in an economy with government debt," European Economic Review, Elsevier, vol. 94(C), pages 103-125.
    2. Leith, Campbell & Wren-Lewis, Simon, 2011. "Discretionary policy in a monetary union with sovereign debt," European Economic Review, Elsevier, vol. 55(1), pages 93-117, January.
    3. Campbell Leith & Simon Wren-Lewis, 2008. "Electoral uncertainty and the deficit bias in a New Keynesian Economy," Working Papers 2009_11, Business School - Economics, University of Glasgow, revised Feb 2009.
    4. Campbell Leith & Simon Wren-lewis, 2006. "The Costs of Fiscal Inflexibility," WEF Working Papers 0005, ESRC World Economy and Finance Research Programme, Birkbeck, University of London.
    5. Leeper, E.M. & Leith, C., 2016. "Understanding Inflation as a Joint Monetary–Fiscal Phenomenon," Handbook of Macroeconomics, in: J. B. Taylor & Harald Uhlig (ed.), Handbook of Macroeconomics, edition 1, volume 2, chapter 0, pages 2305-2415, Elsevier.
    6. Tatiana Kirsanova & Campbell Leith & Simon Wren‐Lewis, 2009. "Monetary and Fiscal Policy Interaction: The Current Consensus Assignment in the Light of Recent Developments," Economic Journal, Royal Economic Society, vol. 119(541), pages 482-496, November.
    7. Stephanie Schmitt-Grohé & Martín Uribe, 2006. "Optimal Fiscal and Monetary Policy in a Medium-Scale Macroeconomic Model," NBER Chapters, in: NBER Macroeconomics Annual 2005, Volume 20, pages 383-462, National Bureau of Economic Research, Inc.
    8. Himmels, Christoph & Kirsanova, Tatiana, 2013. "Escaping expectation traps: How much commitment is required?," Journal of Economic Dynamics and Control, Elsevier, vol. 37(3), pages 649-665.
    9. Martin, Fernando M., 2015. "Debt, inflation and central bank independence," European Economic Review, Elsevier, vol. 79(C), pages 129-150.
    10. Tatiana Kirsanova & Simon Wren‐Lewis, 2012. "Optimal Fiscal Feedback on Debt in an Economy with Nominal Rigidities," Economic Journal, Royal Economic Society, vol. 122(559), pages 238-264, March.
    11. Muscatelli, V. Anton & Tirelli, Patrizio & Trecroci, Carmine, 2004. "Fiscal and monetary policy interactions: Empirical evidence and optimal policy using a structural New-Keynesian model," Journal of Macroeconomics, Elsevier, vol. 26(2), pages 257-280, June.
    12. Celsa Machado & Ana Paula Ribeiro, 2011. "Stabilization Constraints from different-average Public Debt Levels in a Monetary Union with Country-size Asymmetry," EcoMod2011 3152, EcoMod.
    13. Leith, Campbell & Moldovan, Ioana & Rossi, Raffaele, 2015. "Monetary and fiscal policy under deep habits," Journal of Economic Dynamics and Control, Elsevier, vol. 52(C), pages 55-74.
    14. Philip Arestis & Alexander Mihailov, 2011. "Classifying Monetary Economics: Fields And Methods From Past To Future," Journal of Economic Surveys, Wiley Blackwell, vol. 25(4), pages 769-800, September.
    15. Stefan Niemann & Paul Pichler & Gerhard Sorger, 2013. "Central Bank Independence And The Monetary Instrument Problem," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 54(3), pages 1031-1055, August.
    16. Yuting Bai & Tatiana Kirsanova, 2013. "Infrequent Fiscal Stabilization," Working Papers 2013_01, Business School - Economics, University of Glasgow.
    17. Ricardo Nunes & Davide Debortoli, 2007. "Political Disagreement, Lack of Commitment and the Level of Debt," 2007 Meeting Papers 725, Society for Economic Dynamics.
    18. N. Gregory Mankiw & Ricardo Reis, 2002. "Sticky Information versus Sticky Prices: A Proposal to Replace the New Keynesian Phillips Curve," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 117(4), pages 1295-1328.
    19. Chen, Xiaoshan & Kirsanova, Tatiana & Leith, Campbell, 2017. "How optimal is US monetary policy?," Journal of Monetary Economics, Elsevier, vol. 92(C), pages 96-111.
    20. Christoph Himmels & Tatiana Kirsanova, 2011. "Expectations Traps and Monetary Policy with Limited Commitment," Discussion Papers 1102, University of Exeter, Department of Economics.

    More about this item

    JEL classification:

    • E62 - Macroeconomics and Monetary Economics - - Macroeconomic Policy, Macroeconomic Aspects of Public Finance, and General Outlook - - - Fiscal Policy; Modern Monetary Theory
    • E53 - Macroeconomics and Monetary Economics - - Monetary Policy, Central Banking, and the Supply of Money and Credit - - - Deposit Insurance

    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:wly:jmoncb:v:45:y:2013:i:8:p:1477-1516. 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: Wiley Content Delivery (email available below). General contact details of provider: http://www.blackwellpublishing.com/journal.asp?ref=0022-2879 .

    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.