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Equilibrium Simulation with Microeconometric Models: A New Procedure with an Application to Income Support Policies

  • Colombino, Ugo

    ()

    (University of Turin)

Many microeconometric models of discrete labour supply include alternative-specific constants meant to account for (possibly besides other factors) the density or accessibility of particular types of jobs (e.g. part-time jobs vs. full-time jobs). The most common use of these models is the simulation of tax-transfer reforms. The simulation is usually interpreted as a comparative statics exercise, i.e. the comparison of different equilibria induced by different policy regimes. The simulation procedure, however, typically keeps fixed the estimated alternative-specific constants. In this note we argue that this procedure is not consistent with the comparative statics interpretation. Since the constants reflect the number of jobs and since the number of people willing to work changes as a response to the change in tax-transfer regime, the new equilibrium induced by the reform implies that the constants should also change. A structural interpretation of the alternative-specific constants leads to the development of a simulation procedure consistent with the comparative statics interpretation. The procedure is illustrated with a simulation of alternative reforms of the income support policies in Italy.

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Paper provided by Institute for the Study of Labor (IZA) in its series IZA Discussion Papers with number 6679.

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Length: 33 pages
Date of creation: Jun 2012
Date of revision:
Handle: RePEc:iza:izadps:dp6679
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  1. Aaberge, Rolf & Colombino, Ugo & Strom, Steinar, 1999. "Labour Supply in Italy: An Empirical Analysis of Joint Household Decisions, with Taxes and Quantity Constraints," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 14(4), pages 403-22, July-Aug..
  2. John Creedy & Guyonne Kalb & Rosanna Scutella, 2003. "Discrete Hours Labour Supply Modelling: Specification, Estimation and Simulation," Melbourne Institute Working Paper Series wp2003n21, Melbourne Institute of Applied Economic and Social Research, The University of Melbourne.
  3. Rolf Aaberge & Ugo Colombino, 2006. "Designing Optimal Taxes with a Microeconometric Model of Household Labour Supply," ICER Working Papers 37-2006, ICER - International Centre for Economic Research.
  4. Rolf Aaberge & Ugo Colombino, 2010. "Accounting for Family Background when Designing Optimal Income Taxes. A Microeconometric Simulation Analysis," Discussion Papers 619, Research Department of Statistics Norway.
  5. Colombino Ugo & Locatelli Marilena & Narazani Edlira & O'Donoghue Cathal, 2010. "Alternative Basic Income Mechanisms: An Evaluation Exercise With a Microeconometric Model," Basic Income Studies, De Gruyter, vol. 5(1), pages 1-31, September.
  6. Dagsvik, John K, 2000. "Aggregation in Matching Markets," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 41(1), pages 27-57, February.
  7. John Creedy & Alan Duncan, 2001. "Aggregating Labour Supply And Feedback Effects In Microsimulation," Department of Economics - Working Papers Series 823, The University of Melbourne.
  8. John K. Dagsvik & Steinar Strøm, 2004. "Sectoral Labor Supply, Choice Restrictions and Functional Form," Discussion Papers 388, Research Department of Statistics Norway.
  9. Dagsvik, John K, 1994. "Discrete and Continuous Choice, Max-Stable Processes, and Independence from Irrelevant Attributes," Econometrica, Econometric Society, vol. 62(5), pages 1179-1205, September.
  10. Aaberge, Rolf & Colombino, Ugo & Strøm, Steinar, 2003. "Do More Equal Slices Shrink the Cake? An Empirical Investigation of Tax-Transfer Reform Proposals in Italy," Memorandum 37/2003, Oslo University, Department of Economics.
  11. Massimo Baldini & Stefano Toso & Paolo Bosi, 2002. "Targeting welfare in Italy: old problems and perspectives on reform," Fiscal Studies, Institute for Fiscal Studies, vol. 23(1), pages 51-75, March.
  12. Rolf Aaberge, 2007. "Gini’s nuclear family," Journal of Economic Inequality, Springer, vol. 5(3), pages 305-322, December.
  13. repec:rie:review:v:14:y:2009:i:1:n:1 is not listed on IDEAS
  14. Aaberge, Rolf & Dagsvik, John K & Strom, Steinar, 1995. " Labor Supply Responses and Welfare Effects of Tax Reforms," Scandinavian Journal of Economics, Wiley Blackwell, vol. 97(4), pages 635-59, December.
  15. De Vincenti Claudio & Paladini Ruggero, 2009. "Personal Income Tax Design for Italy: Lessons from the Theory," Rivista italiana degli economisti, Società editrice il Mulino, issue 1, pages 7-46.
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