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Material Effect on the Agreed-to Exchange of Performance

15 January, 2016 - 09:32

“Material effect on the agreed-to exchange of performance” means that because of the mutual mistake, there is a significant difference between the value the parties thought they were exchanging compared with what they would exchange if the contract were performed, given the standing facts. Again, in the cow case, had the seller been required to go through with the deal, he would have given up a great deal more than he anticipated, and the buyer would have received an unagreed-to windfall.