Final answer:
The increase in sales due to display, pricing, and promotion is called Promotion Uplift. It results from strategies that make a product more appealing or noticeable to consumers, directly impacting a firm's profits by increasing demand or making demand more inelastic.
Step-by-step explanation:
The increase in sales resulting from display, pricing, and promotion is known as Promotion Uplift. This term refers to the higher number of sales a product or service experiences as a consequence of marketing strategies that can include improved visibility through displays, strategic pricing, or promotions that incentivize consumers to make a purchase. In economic terms, these efforts can either shift a firm's perceived demand curve to the right, indicating an increase in demand, or make the curve steeper, suggesting a more inelastic demand. In either scenario, this can result in the firm being able to sell more units and/or at a higher price, thus boosting profits.In conclusion, the main answer to what the increase in sales is called when a product is given better display, pricing, or promotion is Promotion Uplift (Option B). Such strategies are essential for a firm in a monopolistic competition environment to distinguish its products from competitors and to gain an advantage in the marketplace.