United Parcel Service

United Parcel Service, Inc. runs a global parcel network with its own airline, hubs, and drivers. In the United States the integrated alternatives for overnight and ground parcels are UPS, FedEx, and the Postal Service, with Amazon building a partial rival for its own volume.

In 2013 the European Commission prohibited UPS's acquisition of TNT Express, finding the deal would remove a competitor in international express delivery in many member states. UPS later watched FedEx buy TNT instead, with different overlaps. The prohibition is the European precedent for express mergers.

Large shippers negotiate discounts that small sellers never see. A marketplace or a big retailer with a custom rate can undercut a merchant who pays list. That rate discrimination is usually lawful and still decides who can sell online.

Amazon's in-house network is the new constraint. UPS both serves Amazon and competes with it for other shippers. Dependence on one customer's volume is a monopsony-style risk for the carrier and a foreclosure risk if that customer withholds volume to advantage its own vans.

Two-network parcel markets are the US structure, plus the Postal Service.

The blocked TNT deal is the EU merger boundary for express.

Discount grids favor the largest shippers and function as a barrier for small ones.

Amazon volume is both a customer relationship and a competitive threat.

A small online seller pays rack rates and longer commitments. The large marketplace does not.

Rural delivery economics mean one carrier may be the only practical pickup.