The fact that Stephan Klasen can always give a precise answer to very complicated or even complex questions inspired the idea for this book. We asked 50 development economists (and friends of Stephan) around the world to answer 50 (serious and not-so serious) questions about development research...

Many low income countries are experiencing a “nutrition transition” towards the consumption of more energy-dense, highly processed foods and beverages that are often high in caloric sweeteners, fat and salt. Changing lifestyles and urbanisation have coincided with a ‘retail revolution’,...

Food systems in developing countries are transforming, involving a rapid expansion of supermarkets. This supermarket revolution may affect dietary patterns and nutrition, but empirical evidence is scarce. The few existing studies have analyzed implications for food consumers and producers...