IDEAS home Printed from https://ideas.repec.org/p/ude/wpaper/1201.html
   My bibliography  Save this paper

Economías de escala y de alcance de las instituciones de asistencia médica colectiva en Uruguay

Author

Listed:
  • Patricia Triunfo

    (Departmento de Economía, Facultad de Ciencias Sociales, Universidad de la República)

Abstract

Se realiza la estimación de una función de costos translogarítmica con datos panel para las 41 instituciones de asistencia médica colectiva que operaron en Uruguay durante el período 1985-1993. Las instituciones monopólicas (únicas en le departamento donde actúan) son las que presentaron mayor sensibilidad de los factores productivos a las variaciones de los precios, por lo que ante un aumento en los mismos aumentarían el gasto pero en una menor proporción que las no monopólicas. Salvo para las instituciones monopólicas, es posible afirmar que las participaciones de los insumos en el costo dependen del nivel de producción. Las estimaciones de las economías de escala globales para el producto agregado permiten afirmar que, en general, las instituciones operan con ndimientos crecientes a escala, lo cual aportaría evidencia a favor de la existencia de IAMC de gran tamaño, ya que éstas operarían con menores costos medios que las instituciones pequeñas. En cuanto a la reducción de costos en el período analizado, se encuentra para la institución promedio una reducción entre un 20- 23% según la definición de productos e insumos utilizada. Las instituciones no monopólicas presentaron un mayor avance tecnológico que las monopólicas, y las mutualistas más que las cooperativas. Destaca el grupo formado por FEMI y el CASMU (también las del interior) como las que tuvieron un mayor incremento de la productividad total de los factores (PTF) en el período analizado. Respecto al cambio técnico, se encuentra que el aumento de la escala de producción redujo los costos y que hay un avance tecnológico asociado al ahorro o uso de insumos. Por otra parte, el sesgo más persistente es el ahorrador de medicamentos y utilizador de capital -salvo para las mutualistas-. Respecto al personal médico, en general aparecen como neutrales en su uso, salvo las cooperativas y las instituciones no monopólicas que son utilizadoras del mismo. A su vez, en éstas IAMC se encontró cambio tecnológico asociado con el ahorro o uso de insumos en proporciones constantes. Las estimaciones para tres productos (consultas en medicina -medicina y pediatría-, consultas quirúrgicas -cirugía y ginecología-, número total de egresos -de internación simple, cuidados intermedios e intensivos-) permiten afirmar que producir conjuntamente no es más barato que producir en forma separada. Por lo tanto, no habría evidencia de ventajas para la existencia de una institución universal en la prestación de los servicios. Solamente se encontró complementariedad, aproximadamente al 90% de confianza, entre las consultas en medicina y los egresos hospitalarios para el promedio de las IAMC, y aproximadamente a un 80% en las no monopólicas. Por lo tanto, habría ventajas para la existencia de una institución grande pero no universal que prestara todo tipo de servicio de salud.

Suggested Citation

  • Patricia Triunfo, 2001. "Economías de escala y de alcance de las instituciones de asistencia médica colectiva en Uruguay," Documentos de Trabajo (working papers) 1201, Department of Economics - dECON.
  • Handle: RePEc:ude:wpaper:1201
    as

    Download full text from publisher

    File URL: https://hdl.handle.net/20.500.12008/1942
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Pulley, Lawrence B & Braunstein, Yale M, 1992. "A Composite Cost Function for Multiproduct Firms with an Application to Economies of Scope in Banking," The Review of Economics and Statistics, MIT Press, vol. 74(2), pages 221-230, May.
    2. W. E. Diewert, 1974. "A Note on Aggregation and Elasticities of Substitution," Canadian Journal of Economics, Canadian Economics Association, vol. 7(1), pages 12-20, February.
    3. Gaston J. Labadie, 1997. "Regulación y desempeño comparado de dos subsistemas privados de salud en el Uruguay," Research Department Publications 3006, Inter-American Development Bank, Research Department.
    4. John C. Panzar & Robert D. Willig, 1977. "Economies of Scale in Multi-Output Production," The Quarterly Journal of Economics, President and Fellows of Harvard College, vol. 91(3), pages 481-493.
    5. Labadie, Gastón J. & Ramos Martínez, Alejandro & Sánchez, Delia, 1994. "Instituciones de asistencia médica colectiva en el Uruguay: regulación y desempeño," Políticas Sociales 6231, Naciones Unidas Comisión Económica para América Latina y el Caribe (CEPAL).
    6. Wholey, Douglas & Feldman, Roger & Christianson, Jon B. & Engberg, John, 1996. "Scale and scope economies among health maintenance organizations," Journal of Health Economics, Elsevier, vol. 15(6), pages 657-684, December.
    7. Vita, Michael G., 1990. "Exploring hospital production relationships with flexible functional forms," Journal of Health Economics, Elsevier, vol. 9(1), pages 1-21, June.
    8. Panzar, John C & Willig, Robert D, 1981. "Economies of Scope," American Economic Review, American Economic Association, vol. 71(2), pages 268-272, May.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Máximo Rossi & Patricia Triunfo, 2004. "Gastar en Cuidados Médicos: ¿Es un Lujo para los Montevideanos?," Documentos de Trabajo (working papers) 0604, Department of Economics - dECON.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Lipsman, Michael Aaron, 1994. "A theory of transportation clubs with special application to the domestic aviation system," ISU General Staff Papers 1994010108000012284, Iowa State University, Department of Economics.
    2. Galina Besstremyannaya & Sergei Golovan, 2023. "Measuring heterogeneity in hospital productivity: a quantile regression approach," Journal of Productivity Analysis, Springer, vol. 59(1), pages 15-43, February.
    3. Imanirad, Raha & Cook, Wade D. & Aviles-Sacoto, Sonia Valeria & Zhu, Joe, 2015. "Partial input to output impacts in DEA: The case of DMU-specific impacts," European Journal of Operational Research, Elsevier, vol. 244(3), pages 837-844.
    4. Richard Nehring & Jorge Fernandez-Cornejo & David Banker, 2005. "Off-farm labour and the structure of US agriculture: the case of corn/soybean farms," Applied Economics, Taylor & Francis Journals, vol. 37(6), pages 633-649.
    5. Batarce, Marco, 2016. "Estimation of urban bus transit marginal cost without cost data," Transportation Research Part B: Methodological, Elsevier, vol. 90(C), pages 241-262.
    6. Eric W. Christensen, 2004. "Scale and scope economies in nursing homes: A quantile regression approach," Health Economics, John Wiley & Sons, Ltd., vol. 13(4), pages 363-377, April.
    7. Michael Freeman & Nicos Savva & Stefan Scholtes, 2021. "Economies of Scale and Scope in Hospitals: An Empirical Study of Volume Spillovers," Management Science, INFORMS, vol. 67(2), pages 673-697, February.
    8. Gerard Hoberg & Gordon Phillips, 2018. "Conglomerate Industry Choice and Product Language," Management Science, INFORMS, vol. 64(8), pages 3735-3755, August.
    9. Escarce, Jose J. & Pauly, Mark V., 1998. "Physician opportunity costs in physician practice cost functions," Journal of Health Economics, Elsevier, vol. 17(2), pages 129-151, April.
    10. Ajayi, Victor & Weyman-Jones, Thomas & Glass, Anthony, 2017. "Cost efficiency and electricity market structure: A case study of OECD countries," Energy Economics, Elsevier, vol. 65(C), pages 283-291.
    11. Shaik, Saleem & Addey, Kwame & Yeboah, Osei, 2017. "Efficiency Gains Due To Economies Of Scope And Scale," 2017 Annual Meeting, February 4-7, 2017, Mobile, Alabama 252790, Southern Agricultural Economics Association.
    12. Barros, Carlos Pestana & Wanke, Peter, 2015. "An analysis of African airlines efficiency with two-stage TOPSIS and neural networks," Journal of Air Transport Management, Elsevier, vol. 44, pages 90-102.
    13. Jordan, Brett, 2018. "Economics literature on joint production of minerals: A survey," Resources Policy, Elsevier, vol. 55(C), pages 20-28.
    14. Ilnour I. Farkhoutdinov* & Alexey G. Isavnin, 2018. "Improvement of Financial Standing of Enterprise by Means of Sourcing Maneuver Model Application," The Journal of Social Sciences Research, Academic Research Publishing Group, pages 29-33:5.
    15. Thomas P. Triebs & David S. Saal & Pablo Arocena & Subal C. Kumbhakar, 2016. "Estimating economies of scale and scope with flexible technology," Journal of Productivity Analysis, Springer, vol. 45(2), pages 173-186, April.
    16. Helmers, Glenn A. & Shaik, Saleem & Atwood, Joseph A., 2003. "Social And Scale Efficiency Gains Due To Vertical Integration In The U.S. Hog Sector," 2003 Annual Meeting, February 1-5, 2003, Mobile, Alabama 35143, Southern Agricultural Economics Association.
    17. Kathleen Carey & Jean M. Mitchell, 2018. "Specialization and production cost efficiency: evidence from ambulatory surgery centers," International Journal of Health Economics and Management, Springer, vol. 18(1), pages 83-98, March.
    18. Biener, Christian & Eling, Martin & Jia, Ruo, 2017. "The structure of the global reinsurance market: An analysis of efficiency, scale, and scope," Journal of Banking & Finance, Elsevier, vol. 77(C), pages 213-229.
    19. William S. Lovejoy & Kannan Sethuraman, 2000. "Congestion and Complexity Costs in a Plant with Fixed Resources that Strives to Make Schedule," Manufacturing & Service Operations Management, INFORMS, vol. 2(3), pages 221-239, February.
    20. Kim, Jungho & Lee, Chang-Yang & Cho, Yunok, 2016. "Technological diversification, core-technology competence, and firm growth," Research Policy, Elsevier, vol. 45(1), pages 113-124.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:ude:wpaper:1201. See general information about how to correct material in RePEc.

    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 CitEc recognized a bibliographic reference but did not link an item in RePEc 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 RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Andrea Doneschi or the person in charge (email available below). General contact details of provider: https://edirc.repec.org/data/derauuy.html .

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

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.