We study the impact of cognitive behavioral therapy (CBT) for individuals selected from the general population of poor households in rural Ghana. Results from 2-3 months after a randomized intervention show strong impacts on mental and physical health, cognitive and socioemotional skills, and...

The 19th century economist, Thomas Robert Malthus, hypothesized that the long-run supply of labor is completely elastic at a fixed wage-income level because population growth tends to outstrip real output growth. Dynamic equilibrium with constant income and population is achieved through...

Über Jahrtausende hinweg entsprach der Lebensstandard fast aller Menschen weltweit mehr oder weniger dem Existenzminimum, bis er Ende des 18. Jahrhunderts drastisch anstieg. Viele Nationen genießen heute beispiellosen Wohlstand, andere haben den Sprung aus der wirtschaftlichen Stagnation noch...