Proof of market

"The "any part" clause, however, applies to charges of monopolization as well as to attempts to monopolize, and it is beyond doubt that the former requires proof of market power in a relevant market."

How to Gain Proof of Market
"The recommendation is to apply the MVP or ”minimal viable product” principle which means you take a simple model of your main product and / or service offering and get it to the target market immediately. The intent of doing this is to acquire quick feedback for necessary developments and evidence that the market exists. Also, to really get a taste of this market, hit the streets and ask potential clients."

"As soon as you have proof of market for your company via earnings and proof of cash received via company bank statements, include these documents in the company financing package. Show how the business loan will enhance the capability to gain more market share or increase profit margins through business development."

Market power
Exploitative "pricing abuses may arise not only under conditions of monopoly, where a single dominant company abuses its market power but also in markets jointly dominated by several actors (oligopoly)."

"Besides the usual model-estimation errors and additional stochastic influences not captured by the regression, the difference is likely to occur due to the fact that we do not explicitly model competition between the players of the dominant group. In order to capture this, we could use an oligopoly model with a competitive fringe, rather than a quasi-monopoly model, but that would complicate the mathematics significantly."

"It can be difficult to determine how and under what conditions a dominant group of physicians can profitably extend market power from one market to another."