A company makes a product - it costs $10 per unit to make. To list and sell with Amazon, they are charged $12 per unit. To make a profit the company adds and ad

A company makes a product - it costs $10 per unit to make. To list and sell with Amazon, they are charged $12 per unit. To make a profit the company adds and additional $1 per unit. They sell the product on Amazon for $23 per unit. Online retailer Foo also has a store, and provide the same services that Amazon for their online shop at $5 per unit. The online retailer adds a profit of $2 per unit. Total price $17 per unit. Retailer Foo is more $ efficient for those services as a result customers price compare. Foo is rewarded for their effi with higher volume, manufacturer is rewarded with higher profit and consumer is rewarded with lower prices. Enforcing market competition led to all 3 parties involved being rewarded. Retailer Foo over time grows a larger customer base as people learn to price compare with them and forces Amazon to stop rent seeking. But the above doesn't happen in the real world. Amazon enforces that the retailer lower their price on Amazon to $17, while still collecting $12 per unit. The company now can sell on foo, but only by selling on Amazon at a loss. They can't afford that amount of loss from Amazon and stay in business. So Amazon avoids competition. They can't pull their product from Amazon because not enough customers vist Foo retailer yet to make up the volume. So in the end Foo retailer is more dollar efficient, but is prevented from growing and benefiting the marketplace. Amazon leverages its outside market size to avoid competition. Market participants preventing competition is against the benefits of capitalism and harms the consumer. So, it benefits the consumer to ensure Amazon has to actually compete with the more efficient competitor and stop rent selling behavior.