Universal Post Treaty
I learned something new yesterday (never stop learning!), I learned of the existence of the Universal Post Union, some sort of treaty that allows participating countries to ship to the US at lower rates. I have a son who flies cargo, and I also import parcels of European made goods for my company...therefore my interest! Just yesterday I ordered some parts from England and the supplier is sending them Royal Mail (which may wind up on a Brown or Purple plane or truck as has been the case in the past?)... but the Royal Mail shipping cost compared to the UPS or FedEx cost for this parcel was at least 30% less.
So I'm guessing this Universal Post Union treaty is responsible for this price break given for using Royal Mail at origin... and that maybe dropping out of this treaty will benefit our private carriers?
All I know is that when I send parcels to the UK, regardless of whether I use Brown, Purple, or Postal it costs a whole lot more to get that parcel to our UK distributor than to receive the same parcel back from the UK distributor.