What does a size discount provide to consumers?

A size discount is designed to encourage consumers to purchase larger quantities of a product by providing a lower cost per unit as the quantity purchased increases. This pricing strategy is commonly used in retail and wholesale settings, where buying in bulk results in savings for the consumer. The fundamental idea is to incentivize bulk purchases, making it more economical for consumers to buy larger amounts, which can benefit both the buyer, in terms of cost savings, and the seller, in terms of increased sales volume.

The other options do not encapsulate the essence of a size discount. A fixed price for all products regardless of quantity does not reflect any incentive for bulk buying. Higher prices for larger quantities contradict the very purpose of offering a discount. Lastly, a rebate for future purchases based on quantity is a different type of promotion, which provides delayed savings rather than immediate cost benefits per unit at the time of purchase.