Amazon Is Waging War With FedEx

For the creator of one- and two-day delivery, shipping dominance is worth almost any risk

E-commerce is on a tear, which means shipping is too. In the six months ending August 31, ground deliveries by FedEx surged 20% from the same period a year ago. UPS is so overwhelmed that on Monday it actually imposed a quota on six big retailers — Gap, L.L…