We study the forces behind Google’s large web-search market share. We develop a demand model with switching costs, quality beliefs, and inattention, and estimate it using a field experiment. We find ...

Scientists have created a cell from scratch and believe they can engineer it, which would be a medical phenomenon.

The property consists of three locations that reflect the human rights abuses of the Khmer Rouge regime in Cambodia from 1971 to 1979. The three component parts represent the widespread violence ...