I never thought I’d get serious about Large scale (G gauge) model railroading, but here I am. This past summer, I successfully bid on a 1:22.5-scaled C-16 2-8-0 in Colorado & Southern livery at an ...

We randomly allocated an energy-efficient motor --- a “servo'” motor --- among leather-goods firms in Dhaka, Bangladesh, and tracked adoption, information flows, beliefs about energy savings, and ...