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On the idea of ex ante and ex post normalization of biproportional methods

Author

Listed:
  • Louis de Mesnard

    (LEG - Laboratoire d'Economie et de Gestion - UB - Université de Bourgogne - CNRS - Centre National de la Recherche Scientifique)

Abstract

Biproportional methods project a matrixAto give it the column and row sums of another matrix; the result isR A S, whereRandSare diagonal matrices. AsRandSare not identified, one must normalize them, even after computing, that is,ex post. This article starts from the idea developed in de Mesnard (2002) - any normalization amounts to put constraints on Lagrange multipliers, even when it is based on an economic reasoning, - to show that it is impossible to analytically derive the normalized solution at optimum. Convergence must be proved when normalization is applied at each step on the path to equilibrium. To summarize, normalization is impossibleex ante, what removes the possibility of having a certain control on it. It is also indicated that negativity is not a problem.

Suggested Citation

  • Louis de Mesnard, 2004. "On the idea of ex ante and ex post normalization of biproportional methods," Post-Print halshs-00068412, HAL.
    • Handle: RePEc:hal:journl:halshs-00068412
    DOI: 10.1007/s00168-003-0175-4
    as

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    Keywords

    economics; mathematical economics; Lagrange equations;
    All these keywords.

    JEL classification:

    • C63 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Computational Techniques
    • C67 - Mathematical and Quantitative Methods - - Mathematical Methods; Programming Models; Mathematical and Simulation Modeling - - - Input-Output Models
    • D57 - Microeconomics - - General Equilibrium and Disequilibrium - - - Input-Output Tables and Analysis

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