Final answer:
Suggestive selling involves recommending additional products during a purchase, while the foot-in-the-door technique involves first agreeing to a small request followed by a larger one. Tying sales force a customer to buy a secondary product in order to purchase the primary product they desire.
Step-by-step explanation:
Suggestive selling is a sales technique where a salesperson recommends additional products or services to a customer who is already making a purchase. It is designed to increase the purchase value and enhance the customer's satisfaction by highlighting items that complement or enhance the original purchase. A classic example of this would be a server in a restaurant asking a guest if they would like to add a side dish or dessert to their meal.
The foot-in-the-door technique is a strategy where a seller first gets a customer to agree to a small request, such as a basic accessory or service, and then follows up with a larger, more expensive request. This strategy operates on the principle that agreeing to the smaller request increases the likelihood of agreeing to the subsequent, larger request. In the context of a smartphone purchase, for example, a salesperson might first suggest the best data plan and then propose a three-year extended warranty.
Tying sales occur when a customer is allowed to purchase one product only if they also buy another product, often unrelated or not necessary. This controversial practice restricts consumer choice and may lead to purchases of unwanted or unneeded items. An example of this would be requiring a customer to buy a specific portable TV model in order to purchase a popular DVD.