Adealer persuades a customer to buy a new car by reducing the price to well below that of his competitors. once the customer has agreed to buy the car, the terms of the sale are shifted by lowering the value of the trade-in and requiring the purchase of expensive extra equipment. now the car costs well above the current market rate. this is an example of the technique.

Low ball technique

Explanation:

 The low ball technique is the process in which the products and items are offer initially in low prices beyond expectations. The low ball technique is basically refers to the compliance strategy in which the the person are agree by requesting for the offer.

In this the resulting result are less favorable as compared to the initial offer. This type of technique is more effective for persuading people with the sequential request method.

Therefore, the above example refers to the low ball technique.