The regulation of minus margin in Law Number 5 Year 1999 is explicitly stipulated in Article 19 of Law Number 5 Year 1999. Minus margin is an activity of business actors which in its application may result in monopolistic practices and / or unfair business competition In the market where the business actor is trying.Where the application of minus margin is applied with the aim to keep the selling price of the product at the outlet as the cheapest selling price in the relevant market. So that other business actors cannot determine the price freely.

Hasbi (2017). Minus Margin Agreements as a Violation of Business in Business Competition in Indonesia, European Research Studies Journal Volume XX Issue 3A, 874-889