"This paper uses a Ceridian transaction-by-transaction data set on purchases of diesel fuel by over-the-road truckers to form a monthly diesel volume purchase index from 1999 to 2011, purged of weekday, holiday and calendar effects. These high-frequency data support a new and improved set of...

The Heckscher-Ohlin theory and the Ricardian theory of international commerce traditionally have been treated as separate conceptual frameworks, but a growing body of empirical work is relying on both simultaneously and calls for an integrated theory. This paper combines the Heckscher-Ohlin...