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How misleading is linearization? Evaluating the dynamics of the neoclassical growth model

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  • Atolia, Manoj
  • Chatterjee, Santanu
  • Turnovsky, Stephen J.

Abstract

This paper investigates the reliability of employing linearization to evaluate the dynamic adjustments to changes in productive government spending in a Ramsey growth model. If government expenditure is introduced as a flow and the dynamic adjustment is fast, linearization may yield a reasonably good approximation to the true dynamics, even for fairly large policy shocks. If government expenditure assumes the form of a stock, leading to more sluggish adjustment, linearization may yield misleading predictions. These errors occur at the beginning of the transition and weigh heavily in welfare calculations. The implications for temporary shocks and the speed of convergence are also considered.

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Bibliographic Info

Article provided by Elsevier in its journal Journal of Economic Dynamics and Control.

Volume (Year): 34 (2010)
Issue (Month): 9 (September)
Pages: 1550-1571

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Handle: RePEc:eee:dyncon:v:34:y:2010:i:9:p:1550-1571

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Keywords: Public expenditure Growth Nonlinearities Welfare analysis;

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Cited by:
  1. Mário Amorim Lopes & Fernando A. C. C. Fontes & Dalila A. C. C. Fontes, 2013. "Optimal Control of Infinite-Horizon Growth Models — A direct approach," FEP Working Papers 506, Universidade do Porto, Faculdade de Economia do Porto.
  2. Dieppe, Alistair & González Pandiella, Alberto & Willman, Alpo, 2012. "The ECB's New Multi-Country Model for the euro area: NMCM — Simulated with rational expectations," Economic Modelling, Elsevier, vol. 29(6), pages 2597-2614.
  3. Turnovsky, Stephen J., 2011. "On the role of small models in macrodynamics," Journal of Economic Dynamics and Control, Elsevier, Elsevier, vol. 35(9), pages 1605-1613, September.
  4. Atolia, Manoj & Chatterjee, Santanu & Turnovsky, Stephen J., 2012. "Growth and inequality: Dependence on the time path of productivity increases (and other structural changes)," Journal of Economic Dynamics and Control, Elsevier, Elsevier, vol. 36(3), pages 331-348.
  5. Pedro Mazeda Gil & Oscar Afonso & Paulo B. Vasconcelos, 2013. "Industry Dynamics and Aggregate Stability over Transition," FEP Working Papers 484, Universidade do Porto, Faculdade de Economia do Porto.
  6. O. Carboni & G. Medda, 2010. "A Neoclassical Growth Model with Public Spending," Working Paper CRENoS 201033, Centre for North South Economic Research, University of Cagliari and Sassari, Sardinia.
  7. Groneck, Max, 2008. "A Golden Rule of Public Finance or a Fixed Deficit Regime? Growth and Welfare Effects of Budget Rules," FiFo Discussion Papers - Finanzwissenschaftliche Diskussionsbeiträge 08-7, University of Cologne, FiFo Institute for Public Economics.
  8. Mahbub Morshed, A.K.M. & Turnovsky, Stephen J., 2011. "Real exchange rate dynamics: The role of elastic labor supply," Journal of International Money and Finance, Elsevier, Elsevier, vol. 30(7), pages 1303-1322.

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