When consumers buy a new product, the quality of new products closer to the consumer quality expectations for this product, consumers more sensitive to the quality of new products [32]. Therefore, the expression is as follows:
"When a consumer buys a new product, the closer the quality of the new product is to the desired quality of the product, the more sensitive the consumer is to the quality of the new product." Therefore, the expression for is as follows:
When consumers purchase new products, the closer the quality of the new products is to the expected quality of the products, the more sensitive the consumers are to the quality of the new products [32]. So the expression is as follows: