Publications

In Mauritania, obstetrical risk insurance (ORI) has been progressively implemented at the health district level since 2002 and was available in 25% of public healthcare facilities in 2015. The ORI scheme is based on pre-payment scheme principles and focuses on increasing the quality of and access…

Tuberculosis (TB) is the leading cause of death among HIV-positive patients. We assessed the cost-effectiveness of including lateral-flow urine lipoarabinomannan (LF-LAM) in TB diagnostic algorithms for severely ill or immunosuppressed HIV-positive patients with symptoms of TB in Kenya.

This paper analyzes the factors underlying the evolution of the worldwide distribution of skills and their implications for global inequality. We develop and parameterize a two-sector, two-class, world economy model that endogenizes education and mobility decisions, population growth, and income …

The World Fertility Surveys recorded the age at menarche in 12 African countries. These surveys were conducted from 1977 to 1983 and were based on large representative samples of national populations. Demographic and Health Surveys provided trends in adult height for the same cohorts.

There has been much discourse on how long-term climate change will affect human mobility over the course of the 21st century. This column estimates the long-term welfare and mobility responses to climate change. Depending on the scenario, climate change will force between 210 and 320 million peop…

We develop a multicountry, multisector trade model featuring risk-averse workers, labor market frictions, unemployment benefits, and equilibrium unemployment. Trade opening leads to a reduction in unemployment when it simultaneously raises welfare and reallocates labor toward sectors with lower-t…

Over the 25 years of investigation, the average height of children increased by +1·88 cm, their average weight by +0·10 kg, but their BMI decreased by −0·53 kg/m2. Corresponding changes expressed in Z-scores were +0·454 in HAZ, +0·109 in WAZ and −0·302 in WHZ. This pattern of decreasing stunting …

We develop a method for comparing levels and trends in inequality in mortality in the United States and France between 1990 and 2010 in a similar framework. The comparison shows that while income inequality has increased in both the United States and France, inequality in mortality in France rema…

Utilizing a new database of over 200 employees surveyed in Senegal, we demonstrate the impact of formalization and employment contracts on credit access. Through a probit model, we show that formalization has a significantly positive impact on credit access since an employee’s probability of acce…

This paper investigates the validity of Gibrat’s law in sub-Saharan Africa using data from 22,495 firms operating in 45 African countries. Results indicate that Gibrat’s law does not hold in Africa, i.e. small firms create more jobs than their larger counterparts do. We point out that the usual e…