The interest bend is by and large descending inclining, however for certain merchandise it is up slanting. Two such sorts of products have been given denitions and names that are in like manner use: Veblen merchandise, merchandise which on account of design or flagging are more appealing at more exorbitant costs, and Giffen merchandise, which, by excellence of being mediocre products that retain a huge piece of a buyer's pay {e,g., staples like the exemplary illustration of potatoes in Ireland}, may see an increment in amount requested when the value rises, The explanation the law of interest is disregarded for Gitfen products is that the ascent in the cost of the great has a solid pay impact, strongly lessening the buying force of the shopper so he switches from extravagance merchandise to the Giffen great, eg, when the cost of potatoes rises, the Irish worker can never again manage the cost of meat and eats more potatoes to cover for the lost calories