Operational research and artificial intelligence methods in banking

Supplementary materials are available online at https://www.sciencedirect.com/science/article/pii/S037722172200337X?via%3Dihub#sec0031 .Copyright © 2022 The Authors. Banking is a popular topic for empirical and methodological research that applies operational research (OR) and artificial intelligence (AI) methods. This article provides a comprehensive and structured bibliographic survey of OR- and AI-based research devoted to the banking industry over the last decade. The article reviews the main topics of this research, including bank efficiency, risk assessment, bank performance, mergers and acquisitions, banking regulation, customer-related studies, and fintech in the banking industry. The survey results provide comprehensive insights into the contributions of OR and AI methods to banking. Finally, we propose several research directions for future studies that include emerging topics and methods based on the survey results

Quantidades nos ATM e localização dos ATM no Baixo Vouga

As Automated Teller Machine (ATM) são vulgarmente conhecidas, no nosso país, como máquinas de Multibanco e têm uma enorme importância para as instituições financeiras. Este estudo tem como objetivo conseguir otimizar o reabastecimento dos ATM, reduzindo custos e relacionando a sua movimentação, com a localização desses ATM. Propomos uma formulação em programação linear inteira mista que nos permite determinar, um abastecimento dos ATM tendo em conta o seu volume de levantamentos, volume este, que depende da sua localização. Baseados em dados reais gerámos aleatoriamente, uma instância do problema com o período de um ano, 365 dias, e constituída por um conjunto de 37 ATM de três tipos distintos, de acordo com o seu volume anual de levantamentos. Foram delineados 5 cenários específicos de forma a dar resposta às nossas interrogações, que nos guiaram à obtenção dos resultados. O estudo efetuado permite concluir que é conveniente considerar um número inferior de entregas. Consequentemente, os custos associados aos 5 cenários delineados são todos inferiores aos custos de distribuição atual e é de igual forma possível, manter um nível adequado de todas as funcionalidades dos ATM, sem qualquer rotura no seu stock.The Automated Teller Machine, commonly known in Portugal as “Máquinas de Multibanco”, have in our country an enormous importance for financial institutions. This study aims to achieve an optimization of ATM replenishment, reducing costs and relating their movement with the location of these ATM. We propose a mixed integer linear programming formulation, which allows us to determine a supply of ATM, taking into account their volume of withdrawals, which depends on their location. Based on real data, we randomly generate an instance of the problem with a period of one year, 365 days, and consisting of a set of 37 ATM of three different types, depending on their annual withdrawal volume. 5 specific scenarios were outlined in order to answer our questions, which guided us to obtain the results. The study carried out, allows us to conclude that it is convenient to consider a lower number of deliveries. Consequently the costs associated with the 5 scenarios outlined are all lower than, the current distribution costs and it is still possible to maintain an adequate level of all ATM functionalities, without any break in the stock.Mestrado em Finança