What is the pricing method that incentivises the supplier to control their costs?

Penetration pricing is a marketing strategy used by businesses to attract customers to a new product or service by offering a lower price during its initial offering. The lower price helps a new product or service penetrate the market and attract customers away from competitors.

Price skimming is a product pricing strategy by which a firm charges the highest initial price that customers will pay and then lowers it over time. As the demand of the first customers is satisfied and competition enters the market, the firm lowers the price to attract another, more price-sensitive segment of the population. The skimming strategy gets its name from "skimming" successive layers of cream, or customer segments, as prices are lowered over time.

Incentive contracts allow sharing of the risks between the contractor and the client. The contractor is reimbursed all its justifiable costs in addition to a calculated fee. Target costing is an element of incentive contracts.

Cost-plus pricing is also known as markup pricing. It's a pricing method where a fixed percentage is added on top of the cost to produce