The behavioral and neoliberal foundations of randomizations

International audienceOne-sentence summary : Randomized controlled trials by behavioural economists pretend to be pragmatic and only interested in what really works to solve practical problems but in reality they have notorious normative and ideological aspects. Key points: Behavioural RCTs ignore contexts and composition effects and reflect the biases of those who perform assessments. Behavioural randomizers presume without demonstrating that market exchanges are the most effective form of regulation for societies in all situations of social life. The positive or negative incentives ("nudges") offered by behavioural economics aim to normalize the behaviour of consumers, users, employees or small/independent producers. They are part of a set of power devices by which individual behaviours are shaped and forced, without their knowledge, to conform to dominant class interests

Fine resolution mapping of population age-structures for health and development applications

The age-group composition of populations varies considerably across the world, and obtaining accurate, spatially detailed estimates of numbers of children under 5 years is important in designing vaccination strategies, educational planning or maternal healthcare delivery. Traditionally, such estimates are derived from population censuses, but these can often be unreliable, outdated and of coarse resolution for resource-poor settings. Focusing on Nigeria, we use nationally representative household surveys and their cluster locations to predict the proportion of the under-five population in 1 × 1 km using a Bayesian hierarchical spatio-temporal model. Results showed that land cover, travel time to major settlements, night-time lights and vegetation index were good predictors and that accounting for fine-scale variation, rather than assuming a uniform proportion of under 5 year olds can result in significant differences in health metrics. The largest gaps in estimated bednet and vaccination coverage were in Kano, Katsina and Jigawa. Geolocated household surveys are a valuable resource for providing detailed, contemporary and regularly updated population age-structure data in the absence of recent census data. By combining these with covariate layers, age-structure maps of unprecedented detail can be produced to guide the targeting of interventions in resource-poor settings