This paper provides a critical analysis of the subadditivity axiom, which is the key condition for coherent risk measures. Contrary to the subadditivity assumption, bank mergers can create extra risk. We begin with an analysis how a merger affects depositors, junior or senior bank creditors, and...

This paper analyzes the monthly evolution of bank competition in Mexico from 2008 to 2019 using different measures. Subsequently, we analyze whether the 2014 financial reform had an effect on some of our competition measures. We use ordinary and quantile regression techniques and Markov...

The authors generalize traditional event-study techniques to allow for event-induced parameter shifts, shifting variances, and firm-specific event periods. Their method, which nests traditional methods, also permits systematic risk to change gradually during the event period and exit the period...

This paper studies the impact of bank mergers on firm-bank lending relationships using information from individual loan contracts in Belgium. We analyse the effects of bank mergers on the probability of borrowers maintaining their lending relationships and on their ability to continue tapping...

A model of loan rate competition with liquidity provision by banks is used to study bank mergers. Both loan rate competition and liquidity needs are seen to be "localised" phenomena. This allows for tracing down the effects of particular types of bank mergers. As such, we contrast the effects of...

Assessing the impacts of bank mergers on small firms requires separating borrowers with single versus multiple banking relationships and distinguishing the three alternatives of "staying," "dropping," and "switching" of relationship. Single-relationship borrowers who "switch" to another bank...