• Are all U.S. credit unions alike? 

    Malikov, Emir; Restrepo, Diego A.; Kumbhakar, Subal C.; emalikov@binghamton.edu; drestr16@eafit.edu.co; kkar@binghamton.edu (Universidad EAFIT; Escuela de Economía y Finanzas, 2013-04-11)
  • Are U.S. Commercial Banks Too Big? 

    Restrepo, Diego A.; Kumbhakar, Subal C.; Sun, Kai; drestr16@eafit.edu.co; kkar@binghamton.edu; k.sun@aston.ac.uk (Universidad EAFIT; Escuela de Economía y Finanzas, 2013-02-02)
  • Enjoying the quiet life under deregulation? . Not quite 

    Restrepo-Tobón, Diego; Kumbhakar, Subal C. (John Wiley & Sons, Ltd., 2014)
    Most empirical studies in the banking literature assume that the alternative profit function is linearly homogeneous in input prices. We show that such an assumption is theoretically unwarranted and that its use may yield ...
  • Estimation of banking technology under credit uncertainty 

    Malikov, Emir; Restrepo, Diego A.; Kumbhakar, Subal C.; emalikov@binghamton.edu; drestr16@eafit.edu.co; kkar@binghamton.edu (Universidad EAFIT; Escuela de Economía y Finanzas, 2013-05-15)
  • Estimation of banking technology under credit uncertainty 

    Malikov, Emir; Restrepo-Tobón, Diego; Kumbhakar, Subal C. (Springer International Publishing, 2014)
    Credit risk is crucial to understanding banks’ production technology and should be explicitly accounted for when modeling the latter. The banking literature has largely accounted for risk usingex-post realizations of banks’ ...
  • Nonparametric estimation of returns to scale using input distance functions: an application to large US banks 

    Restrepo-Tobón, Diego; Kumbhakar, Subal C. (Springer International Publishing , 2015)
    We derive new measures of returns to scale based on input distance functions (IDFs) and estimate them using nonparametric regression methods. In contrast to the cost function approach, the IDF does not require input prices ...
  • Obelix vs. Asterix: Size of US commercial banks and its regulatory challenge 

    Restrepo-Tobón, Diego; Kumbhakar, Subal C.; Sun, Kai (Springer International Publishing, 2015)
    Big banks pose substantial costs to society in the form of increased systemic risk and government bailouts during crises. So the question is: Should regulators limit the size of banks? To answer this question, regulators ...
  • Profit efficiency of U.S. commercial banks: a decomposition 

    Restrepo, Diego A.; Kumbhakar, Subal C.; drestr16@eafit.edu.co; kkar@binghamton.edu (Universidad EAFIT; Escuela de Economía y Finanzas, 2013-06-05)