I read a LOT of stuff every day. And this caught my eye (from Supply Chain 24/7 – Reshoring).

The overall manufacturing-cost structures of Mexico and the U.S. have significantly improved relative to nearly all other leading exporters across the globe.

The key reasons were stable wage growth, sustained productivity gains, steady exchange rates, and a big energy-cost advantage that is largely driven by the 50 percent fall in natural-gas prices since large-scale production of U.S. shale gas began in 2005.

“Shale gas” is another way of saying “fracking”.