In the light of first-hand data from a Beninese urban household survey in Cotonou, we investigate several motives aiming to explain participation in Rotating Savings and Credit Associations (ROSCAs). We provide empirical findings which lead us to think that the main reason why individuals join a ROSCA is to commit themselves against self-control problems.

Drawing on data we collected in Cotonou (southern Benin) we highlight the importance of magico-religious expenditures within Beninese households. We focus on magico-religious powers used to cure and protect oneself or relatives against negative health shocks and other misfortunes. Our questionnaire elicit information on expenditures on magico-religious diagnosis, prevention and treatment in the twelve months prior to our survey. Far from being anecdotal, our data show that out of the 178 households in our sample, 48% have declared some magico-religious expenditures. For these household heads these expenditures represented on average 5.6% of all expenditures. Using an econometric analysis, we test several conjectures that can be found in the relevant literature as to what variables drive magico-religious expenditures. We find that the main determinants are economic success and tensions within the family.

Mutual health organisations have been present in Senegal for years. Despite their benefits, in most areas take-up rates remain low. Using randomised controlled trials, we evaluate the effect of an insurance literacy module, communicating the benefits and functioning of health microinsurance, as well as three cross-cutting marketing treatments. The results from our various marketing treatments indicate a positive and significant effect on health insurance adoption, particularly for poor households, increasing take-up by around 35-40%. The insurance literacy module does not seem to have a positive impact on take-up decisions. We attempt to provide different contextual reasons for this result.

We investigate the role of social interaction in technology adoption by conducting a field experiment in neighborhoods of Bamako. We invited women to attend a training/marketing session, where information on a more efficient cooking stove was provided and the chance to purchase the product at market price was offered. We randomly provided an information nudge on a peer's willingness to buy an improved cookstove. We find that women purchase and use the product more when they receive information on a peer who purchased (or previously owned) the product, particularly if she is viewed as respected. In general, we find positive direct and spillover effects of attending the session. We also investigate whether social interaction plays a role in technology diffusion. We find that women who participated in the session, but did not buy during the intervention, are more likely to adopt the product when more women living around them own it. We investigate the mechanisms and provide evidence supporting imitation effects, rather than social learning or constraint interaction.

In Senegal mutual health organizations (MHOs) have been present in the greater region of Thiès for years. Despite their benefits, in some areas there remain low take-up rates. We offer an insurance literacy module, communicating the benefits from health microinsurance and the functioning of MHOs, to a randomly selected sample of households in the city of Thiès. The effects of this training, and three cross-cutting marketing treatments, are evaluated using a randomized control trial. We find that the insurance literacy module has no impact, but that our marketing treatment has a significant effect on the take up decisions of households.