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Optimal Capital Accumulation and Embodied Technological Progress under Uncertainty

Author

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  • Aude Pommeret
  • Bruno Cruz

Abstract

This paper proposes a stochastic model of investment with embodied technological progress, in which firms invest not only to expand the capacity as in Pindyck (1988) but also to replace old machines. The scrapping decision or the age of the oldest machine is then endogenous and evolves stochastically. Uncertainty may increase the optimal age of the machines in use, and due to uncertainty, not only capacity expansion but replacement as well, may be postponed. By introducing heterogenous capital units, the model may generate lumpy investment and it gets rid from the perfect ''procyclicity' of investment usually implied in the literature of irreversible investment under uncertainty. The so-called cleansing effect of recessions appears since replacement can occur even in bad realizations of the stochastic process

Suggested Citation

  • Aude Pommeret & Bruno Cruz, 2004. "Optimal Capital Accumulation and Embodied Technological Progress under Uncertainty," Econometric Society 2004 Latin American Meetings 33, Econometric Society.
  • Handle: RePEc:ecm:latm04:33
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    File URL: http://repec.org/esLATM04/up.16042.1080136280.pdf
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    Cited by:

    1. Bruno CRUZ & Aude POMMERET, 2003. "Subsidizing energy saving capital accumulation: a real option approach," Cahiers de Recherches Economiques du Département d'Econométrie et d'Economie politique (DEEP) 03.14, Université de Lausanne, Faculté des HEC, DEEP.

    More about this item

    Keywords

    Embodiment Investment Uncertainty;

    JEL classification:

    • E22 - Macroeconomics and Monetary Economics - - Consumption, Saving, Production, Employment, and Investment - - - Investment; Capital; Intangible Capital; Capacity

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