We study the effect of a declining labor force on the incentives to engage in labor-saving technical change and ask how this effect is influenced by institutional characteristics of the pension scheme. When labor is scarcer it becomes more expensive and innovation investments that increase labor...

The impact of global climate change on health is not well understood. Besides the direct channel of increasing temperatures, there is a potentially more harmful one: through an increase in extreme weather incidents. We offer the first evidence on the effect of natural disasters on pregnancy...

Nineteenth century white US statures varied with nutrition, disease exposure, and the physical environment. An additional explanation for stature growth is vitamin D production. Vitamin D is produced internally by the synthesis of cholesterol and sunlight in the epidermis. However, studies that...