Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

Andrew J Tatem works for the University of Southampton, and is Director of WorldPop. His research on mapping populations has been funded by donors such as the Gates Foundation, Wellcome Trust, GAVI.

Businesses often perform research to identify consumer buying habits and preferences. It's rarely possible to study all consumers in particular population segment, which means business researchers ...