"The gravity model in economics was until relatively recently an intellectual orphan, unconnected to the rich family of economic theory. This review is a tale of the orphan's reunion with its heritage and the benefits that have flowed from it. Gravity has long been one of the most successful...

"Much economic policy is deliberately shifted away from direct political processes to administrative processes - political pressure deflection. Pressure deflection poses a puzzle to standard political economy models which suggest that having policies to sell is valuable to politicians. The...