This paper contributes towards the growing debate concerning the world distribution of in- come and its evolution over that past three to four decades. Our methodological approach is twofold. First, we formally test for the number of modes in a cross-sectional analysis where each country is...

We estimate and analyze the global income distribution from national log-normal income distributions for the years 1970 to 2003, as well as the income distribution of seven regional subsamples. From these distributions we obtain measures for global and regional inequality and poverty, and find...

In this paper we analyze the world´s cross-national distribution of income and its evolution from 1970 to 2003. We argue that modeling this distribution by a finite mixture and investigating its number of components has advantages over nonparametric inference concerning the number of modes. In...

In this paper we analyze the distribution of fertility rates across the world using parametric mixture models. We demonstrate the existence of twin peaks and the division of the world's countries in two distinct components: a high-fertility regime and a low fertility regime. Whereas the...

Income inequality has been rising in many developing countries since the 1980s. At the same time, global income inequality has been roughly stable (or even falling slightly) and there is great heterogeneity in within-country inequality trends across countries and regions. Non-income inequality...

We study the impact of a portable "soft" commitment device on the financial behavior of low-income slum dwellers in Maharashtra, India. 1525 individuals were randomly allocated to receiving either a zip purse and a lockbox (treatment arm) or a lockbox only (control arm). Based on self-reported...

The COVID-19 pandemic shapes the lives of people around the globe - at the same time, people themselves have the power to shape the pandemic. By employing protective health behavior, such as social distancing, hygiene, mask wearing, and appropriate actions when infected, the population can...

Preventing infections is crucial for population groups that are at higher risk to experience a complicated disease course and have limited access to healthcare. Our research with lowincome households from Pakistan first documents gaps in knowledge and individual preventive practices in the...

While the burden of non-communicable diseases is rising in low- and middle-income countries, the uptake of screening for these diseases remains low. We conducted a community-based RCT in Indonesia to assess whether personalized and targeted text messages can increase the demand for existing...