IDEAS home Printed from
MyIDEAS: Log in (now much improved!) to save this article

Progrès technique et croissance de la productivité : estimations sur un panel incomplet de firmes ayant des qualités de production différentes

Listed author(s):
  • Georges Dionne
  • Robert Gagné

[eng] Measuring Technical Change and Productivity Growth with Varying Output Qualities and Incomplete Panel Data par Georges Dionne and Robert Gagné This paper presents a method for estimating technical change using incomplete panel data. In addition, we show how estimates of cost elasticities with respect to output qualities can be used to evaluate productivity growth adjusted for quality changes. In order to control for the incomplete nature of the sample used, specific dummy variables for entry in and exit from the sample are introduced into the cost function. The proposed methodology is applied to an unbalanced sample of trucking firms from Quebec. Results show that without correction for sample entry or exit, the estimated rate of technical change between 1987 and 1988 is -29,7%. When entry in or exit from the sample is taken into account, the estimated rate is -4,2%. Also, during the same period, the observed TFP growth rate is 63.4%. After adjustment for quality changes, this rate falls to -4,6%. [fre] Progrès technique et croissance de la productivité : estimations sur un panel incomplet de firmes ayant des qualités de production différentes par Georges Dionne et Robert Gagné Dans cet article, nous proposons une méthodologie permettant l'estimation du progrès technique avec un échantillon incomplet de firmes. Nous montrons comment les estimations des élasticités des coûts par rapport aux variables de qualité de la production peuvent être utilisées afin d'épurer le taux de croissance observé de la productivité des effets des changements de qualité. Afin de vérifier que l' échantillon utilisé est incomplet, nous introduisons dans la spécification de la fonction de coût des variables indicatrices relatives à l'entrée et à la sortie d'une firme de l'échantillon. Notre méthodologie est appliquée à un panel incomplet d'entreprises québécoises de transport par camion. Nos résultats montrent que sans correction pour l'entrée et la sortie de firmes de l'échantillon, l'estimation du progrès technique est de -29,7% entre 1987 et 1988 contre -4,2% pour le taux corrigé. De plus, au cours de la même période, le taux de croissance observé de la productivité est de 63,4% alors, qu'après correction pour les changements de qualité, ce taux est de -4,6%.

If you experience problems downloading a file, check if you have the proper application to view it first. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL:
Download Restriction: no

File URL:
Download Restriction: no

Article provided by Programme National Persée in its journal Économie & prévision.

Volume (Year): 126 (1996)
Issue (Month): 5 ()
Pages: 63-76

in new window

Handle: RePEc:prs:ecoprv:ecop_0249-4744_1996_num_126_5_5823
Note: DOI:10.3406/ecop.1996.5823
Contact details of provider: Web page:

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:

in new window

  1. Melvyn A. Fuss & Leonard Waverman, 1981. "Regulation and the Multiproduct Firm: The Case of Telecommunications in Canada," NBER Chapters,in: Studies in Public Regulation, pages 277-328 National Bureau of Economic Research, Inc.
  2. Daughety, Andrew F & Nelson, Forrest D, 1988. "An Econometric Analysis of Changes in the Cost and Production Structure of the Trucking Industry, 1953-1982," The Review of Economics and Statistics, MIT Press, vol. 70(1), pages 67-75, February.
  3. Ying, John S, 1990. "The Inefficiency of Regulating a Competitive Industry: Productivity Gains in Trucking Following Reform," The Review of Economics and Statistics, MIT Press, vol. 72(2), pages 191-201, May.
  4. Kim, Moshe, 1984. "The Beneficiaries of Trucking Regulation, Revisited," Journal of Law and Economics, University of Chicago Press, vol. 27(1), pages 227-241, April.
  5. Baltagi, Badi H & Griffin, James M & Rich, Daniel P, 1995. "Airline Deregulation: The Cost Pieces of the Puzzle," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 36(1), pages 245-260, February.
  6. Richard H. Spady & Ann F. Friedlaender, 1978. "Hedonic Cost Functions for the Regulated Trucking Industry," Bell Journal of Economics, The RAND Corporation, vol. 9(1), pages 159-179, Spring.
Full references (including those not matched with items on IDEAS)

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

When requesting a correction, please mention this item's handle: RePEc:prs:ecoprv:ecop_0249-4744_1996_num_126_5_5823. See general information about how to correct material in RePEc.

For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Equipe PERSEE)

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 references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link 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 profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.