2017-10-132017-10-132017-10-132017-10-13https://repositorio.banrep.gov.co/handle/20.500.12134/6335In complex systems, homogeneity (i.e. lack of diversity) has been documented as a source of fragility. Likewise, financial sector’s homogeneity has been documented as a contributing factor for systemic risk. We assess homogeneity in the Colombian case by measuring how similar banks are regarding the structure of their overall financial statements, and their lending, investment, and funding portfolios. Distances among banks and an agglomerative clustering method yield the hierarchical structure of the banking system, which exhibits how banks are related to each other based on their financial structure. The Colombian banking sector displays homogeneous features, especially among the largest banks. Results enable to study to what extent the banking sector is homogeneous, and to identify banking firms that have a (n) (un) common financial structure. Yet, as we neither examine Colombian banking system complexity nor banks’ soundness nor higher dimensions of diversity, conclusive inferences about systemic risk and financial stability are pending.31 páginas : gráficas, tablasPDFengOpen AccessAglomeraciónBancosDiversidadRiesgo sistémicoAprendizaje automáticoWorking PaperC38 - Classification Methods; Cluster Analysis; Principal Components; Factor AnalysisG21 - Banks; Depository Institutions; Micro Finance Institutions; MortgagesL22 - Firm Organization and Market StructureL25 - Firm Performance: Size, Diversification, and ScopeClusteringBanksDiversitySystemic riskMachine learningSistema financiero -- ColombiaRiesgo financiero -- ColombiaEstabilidad financiera -- ColombiaBancos -- ColombiaAcceso abiertoAtribucion-NoComercial-CompartirIgual CC BY-NC-SA 4.0L25 - Rendimiento de la empresa: tamaño, diversificación y alcance de la empresaG21 - Bancos; Instituciones de depósito; Instituciones Microfinancieras; HipotecasC38 - Métodos de clasificación; Análisis cluster; Análisis de componentes principales; Análisis factorialL22 - Organización de la empresa y estructura de mercadoLas opiniones contenidas en el presente documento son responsabilidad exclusiva de los autores y no comprometen al Banco de la República ni a su Junta Directiva.https://hdl.handle.net/20.500.12134/6335