Final answer:
The sales promotion that enables customers to recover part of the product's cost from the manufacturer is a rebate. Rebates provide a partial refund after the purchase has been made. This differs from the consumer surplus that illustrates the benefit when a consumer gets more value than the price paid.
Step-by-step explanation:
The type of sales promotion that allows the customer to recover part of the product's cost from the manufacturer is known as a rebate. A rebate is a partial refund to someone who has paid too much money for tax, rent, or a utility. The process usually involves a customer purchasing the product at full price, then submitting a request along with proof of purchase to the manufacturer, and finally receiving a check or direct refund for a certain amount of the product's cost.
When a shopper gets a "good deal" on a product, an economist might describe this situation as the consumer achieving consumer surplus, which occurs when the consumer's willingness to pay for a product exceeds the actual price paid. It is an indicator of the additional benefit gained by a buyer when they purchase an item for less than what they were willing to pay.
In addition to rebates, there are other forms of sales promotions such as coupons, premiums, and trade allowances. Each serves a different purpose and benefits the consumer in various ways. Nonetheless, among the given options, the rebate is the one allowing a customer to reclaim part of the expenditure directly from the manufacturer.