The Dutch Competition Act (Mededingingswet) prohibits companies from abusing a dominant position. A company is deemed to hold a dominant position if:
- it has no competitors
- its competitors are very small
- it does not have to take its customers or suppliers into account
One speaks of abuse if the company causes harm to the competitive position of its competitors. There are various types of abuse. The Netherlands Authority for Consumers and Markets (Autoriteit Consument en Markt, ACM) may impose fines if abuse is identified.