The thesis studies the impact of European banking regulatory reforms on the stability of Central and Eastern European countries after the financial crisis with the annual data from Hungary, Poland, Slovakia, and Slovenia from 2009 to 2019. The thesis reaches several conclusions. Firstly, increasing minimum Tier 1 capital adequacy ratio through CRR/CRD IV did not significantly promote the bank stability in sample countries. However, total capital adequacy ratio is found to have positive and significant association with overall insolvency risk. Secondly, relaxing restrictions would have negative impact on bank stability measured by bank z-score. Thirdly, countries that are more open on the regulation may have more stable banks, while tighter entry restrictions boost bank fragility. Fourthly, when only taking deposit insurance variables as explanatory variables, increasing the level of deposit insurance coverage may dampen the bank stability. However, when controlling other regulation and supervision indexes, the results do not show any significant effect of deposit insurance scheme on bank z-score. Lastly, the supervisory variables are not significantly associated with bank stability in sample countries.

Los bancos tienen como principal actividad para generar ingresos a la creación de créditos; sin embargo, debido a la incertidumbre que enfrentan al realizar sus operaciones, se ven expuestos al riesgo de crédito. Lo anterior crea un impacto negativo en el desempeño y rentabilidad bancaria; de ahí la importancia de la gestión de riesgo de crédito para garantizar la solidez financiera de los bancos. La presente investigación busca determinar cómo la gestión del riesgo de crédito afecta a la rentabilidad de los bancos peruanos, debido a que en los últimos años se muestra que los principales indicadores de gestión de riesgo de crédito se están deteriorando. La estimación se realiza a través de una base de datos longitudinal y la aplicación de la metodología Datos de Panel de Efectos Fijos teniendo como variable endógena a la rentabilidad y como exógena a dos indicadores de gestión de riesgo de crédito: El ratio de la cartera morosa y el ratio de adecuación de capital. Los resultados obtenidos indican que una inadecuada gestión de riesgo de crédito de los bancos peruanos afecta negativa su rentabilidad, pero no los llevan hasta el punto de quebrar o generar grietas en el sistema bancario. Por último, un banco con mayor tamaño incrementa su rentabilidad, ya que invierte en mejores herramientas para mejorar su gestión de riesgo de crédito. / Banks have as their main activity to generate income to the creation of credits; however, due to the uncertainty they face when carrying out their operations, they are exposed to credit risk. This creates a negative impact on bank performance and profitability; hence the importance of credit risk management to guarantee the financial soundness of banks. This research seeks to determine how credit risk management affects the profitability of Peruvian banks, since in recent years it has been shown that the main indicators of credit risk management are deteriorating. The estimation will be made through a longitudinal database and the application of the Fixed Effects Panel Data methodology, taking profitability as endogenous variable and two credit risk management indicators as exogenous: the delinquent portfolio ratio. and the capital adequacy ratio. The results obtained indicate that an inadequate credit risk management of Peruvian banks negatively affects their profitability but does not lead them to the point of going bankrupt or generating cracks in the banking system. Finally, a larger bank increases its profitability, as it invests in better tools to improve its credit risk management. / Trabajo de investigación