Tickets, V__and coupons are sent to users on their mobile phones in digital form. (a printed piece of paper that can be used instead of money to pay for sth)

A.VanA、VanB

B.VanA、VanC

C.VanB、VanC

D.VanA、VanB、VanC

E.VanB、VanD

A.VanA

B.VanB

C.VanD

D.VanE

A.30

B.60

C.90

D.120

此题为判断题(对，错)。

A、utility model

B、incentive marketing model

C、subscription model

D、Merchant Model

(1)禁止在德国使用优惠券是改善了还是恶化了德国消费者的境况？

(2)禁止在德国使用优惠券是改善了还是恶化了德国生产者的境况？

In Example 11. 1 we saw how producers of processed foods and related consumer goods use coupons as a means of price discrimination. Although coupons are widely used in the United States, that is not the case in other countries. In Germany , coupons are illegal.

a Does prohibiting the use of coupons in Germany make German consumers better off or worse off？

b. Does prohibiting the use of coupons make German producers better off or worse off？

A.UPC:美国商品通用条码

B.SKU：库存增加或减少的计量单位，常见如：件、个、包、盒、袋等单位

C.Coupons:优惠券

D.feedback：客户收货后，对产品的评价