The Amazon Effect is impossible to ignore. By definition, it refers to the impact the juggernaut, and all other digital marketplaces, has had on the retail industry. As online shopping and ecommerce has increased, smaller, local retail stores have suffered. However, more recently, the Amazon effect has traveled all the way down the supply chain. It is now something that nearly every consumer, every retailer and every business has been affected by, including shippers, carriers and 3PLs.