but now the buyers don't or they don't necessarily come and mike planas on average they get 20% less of the surplus for the value they would with items they had chosen for themselves. so is it good for the economy? well it is certainly good for the sellers. but the economy than consists of both sellers and buyers. it's not so much good for the consumers, the ultimate consumers of the object here and not the buyers that the recipients of the gifts. so, you sort of imagine after a gift-giving transaction the seller could say to the buyer was a good for you? mosul much. -- not so much. now it's getting a little dreary by now. so i think it is worth contemplating a little bit of the ideal gifts. and with your id is possible to do something better than what i am describing. what is an ideal gift? we'll have our own definitions of this but one way to think about an ideal gift is something that is delightful to the recipient. it's something that maybe they wouldn't have known to buy but it delivers them more satisfaction than what they would have chosen to themselves. so it's something kind