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The Cost of Collateralized Borrowing in the Colombian Money Market: Does Connectedness Matter?

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  • Constanza Martínez
  • Carlos León

Abstract

Under the view that the market is a weighted and directed network (Barabási, 2003), this document is a first attempt to model the Colombian money market within a spatial econometrics framework. By estimating two standard spatial econometric models, we study the cost of collateralized borrowing (i.e. sell/buy backs) among Colombian financial institutions, and its relationship with the effects induced by traditional variables (leverage, size and borrowing levels), and by spatial variables resulting from observed linkages among financial institutions. The model that best fits the data is the Spatial Durbin Model, whose main findings indicate that (i) traditional variables are of low explanatory power by themselves; (ii) there exists a significant spatial dependence with regard to the cost of collateralized borrowing; (iii) the inclusion of spatial lags of the same traditional factors results in a model able to explain the existence of borrowing spreads that vary across financial institutions despite the collateralized nature of sell/buy backs; (iv) direct and spill-over effects from the spatially lagged value of financial leverage are the most significant for determining the cost of collateralized borrowing. Results are valuable since making connectedness an explanatory variable breaks with the traditional (reductionist) understanding of financial markets, which concurs with the current interest in the macro-prudential perspective of financial stability.

Suggested Citation

  • Constanza Martínez & Carlos León, 2014. "The Cost of Collateralized Borrowing in the Colombian Money Market: Does Connectedness Matter?," BORRADORES DE ECONOMIA 011123, BANCO DE LA REPÚBLICA.
  • Handle: RePEc:col:000094:011123
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    Cited by:

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    2. Fabio Ortega-Castro & Freddy Cepeda-López & Constanza Martínez-Ventura, 2021. "Heterogeneidad en el uso de las fuentes de liquidez intradía en el sistema de pagos de alto valor," Borradores de Economia 1166, Banco de la Republica de Colombia.
    3. Carlos León & Javier Miguélez, 2020. "Interbank relationship lending in Colombia," Borradores de Economia 1118, Banco de la Republica de Colombia.
    4. Fabio Ortega & Carlos León, 2017. "Las transferencias compensadas por ACH Colombia: Un análisis desde la perspectiva de topología de redes," Borradores de Economia 990, Banco de la Republica de Colombia.
    5. Matabaro Borauzima, Luc & Niyondiko, Dominique & Muller, Aline, 2021. "Does cross-border banking enhance competition and cost efficiency? Evidence from Africa," Journal of Multinational Financial Management, Elsevier, vol. 62(C).
    6. León, Carlos & Miguélez, Javier, 2021. "Interbank relationship lending: A network perspective," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 573(C).

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    More about this item

    Keywords

    Money market; interbank; collateral; collateralized borrowing; spatial econometrics.;
    All these keywords.

    JEL classification:

    • C31 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Cross-Sectional Models; Spatial Models; Treatment Effect Models; Quantile Regressions; Social Interaction Models
    • G21 - Financial Economics - - Financial Institutions and Services - - - Banks; Other Depository Institutions; Micro Finance Institutions; Mortgages
    • G32 - Financial Economics - - Corporate Finance and Governance - - - Financing Policy; Financial Risk and Risk Management; Capital and Ownership Structure; Value of Firms; Goodwill

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