Happy to, vbkehs! The stimulus is about comparing the value of two things - a tangible gift vs a gift card or cash - by comparing what someone would be willing to pay for it. So to follow up on my earlier example, if my wife gives me a Panthers sweater that retails for $100, I might look at it and say "I would have paid $67 for that - if it cost any more than that I would not have bought it for myself." Meanwhile, my mother-in-law gives me that $100 gift card, for which I would have happily paid $100 (and even more happily paid $90 for it). According to this study, this means that I value gift cards and cash more than I value that sweater.
Answer D challenges that idea by making a different comparison: how much would I be willing to accept for the gift if I was going to sell it? If it turns out that I would be unwilling to part with that $100 sweater unless someone gave me at least $150 for it, but I would of course part with the gift card for $100, and be thrilled to sell it for $110, then it looks like I actually value the tangible gift more than I value the gift card. It's contrary data, using a different standard for determining how someone measures value. I love my sweater, and even though I would have only paid $67 for it, you better keep your grubby hands off it until you fork over a cool $150, pal! I may be a cheapskate who wouldn't fork out his own money to buy that gift, but you better come with plenty of cash if you want to get it from me now that I have it!
As to the "unless" in answer D, it does what it always does in these cases - it indicates a necessary condition and triggers the Unless Equation
tm. Answer D is a conditional claim that can be written this way:
Willing to Sell Gift
Offered Min 1.5x price
(If you are willing to sell a gift, you must have been offered at least 1.5 times the actual price of the gift. The contrapositive would be if you are not offered at least 1.5 times the original price, you are not willing to sell it.
Adam M. Tyson
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