Résumé : Microfinance, the provision of financial services to the poor, has been celebrated for its win-win proposition of reducing poverty while operating on a financially sustainable or even profitable basis. However, the industry has recently experienced several crises that have challenged both its financial sustainability and its social reputation. As a result, the focus of the microfinance sector on commercialization has given way to a new emphasis on client-focused products and services and on customer protection as the industry’s current priorities. Given the risks it implies both to the social impact of microfinance and to institutional sustainability, the main focus of the current client protection efforts in microfinance is on protecting borrowers against over-indebtedness.

However, customer protection efforts are struggling with a significant gap of knowledge about the prevalence, causes and consequences of over-indebtedness. There is no agreed definition or measurement of personal over-indebtedness. Especially, there is no appropriate definition for customer protection purposes and for the specific circumstances of microfinance. Existing over-indebtedness definitions mostly centre on default, thus avoiding portfolio quality problems for the lending institutions. They do not take into account that borrowers already experience severe consequences of over-indebtedness before reaching the stage of default. Findings on the empirical prevalence of over-indebtedness and on its causes and consequences may differ based on a definition that takes the borrowers’ over-indebtedness experiences and thus the customer protection perspective into account.

The first paper of this PhD develops an over-indebtedness definition that is suitable for customer protection purposes in the microfinance context. The definition is based on the sacrifices that microborrowers experience related to their loans. Working with the economics, psychology, and sociology literatures on both microfinance and consumer finance, the paper provides a conceptual analysis of the demand and supply side factors that cause over-indebtedness as well as the role of adverse economic shocks. The second paper reveals the broad spectrum of consequences that over-indebtedness can have on borrowers and on MFIs. It then reviews the empirical studies on over-indebtedness in the microfinance industry to date to shed light on the prevalence of over-indebtedness in microfinance.

In an empirical field research supported by the Independent Evaluation Department of KfW Entwicklungsbank and the Smart Campaign at ACCION’s Center for Financial Inclusion, the PhD applies the customer protection definition of over-indebtedness that results from the first paper to the microfinance market of Accra in Ghana. The third paper uses this unique database to pinpoint the prevalence of over-indebtedness in this market and analyse the debt experiences of microborrowers. In a second step, by means of a logistic regression of alternative measurements on the customer protection measurement of over-indebtedness, it provides empirical confirmation for the important differences between the risk management perspective on over-indebtedness and the customer protection point of view.

Finally, the fourth paper of the PhD tests socio-demographic and economic factors on the borrower level for their relationship to over-indebtedness. It sheds light on how the potential over-indebtedness causes that emerge from the analysis of paper 1 relate to the likelihood of a borrower being over-indebted. It also works with the primary database from Ghana and uses econometric regression methods to confirm to what extent theses potential causes of over-indebtedness relate to over-indebtedness in the given microfinance setting.