Definition of Tortious Interference With Contract in New York

In Guard-Life Corp. v. S. Parker Hayrdward Mfg. (50 NY2d 183, 189, 406 N.E.2d 445, 428 N.Y.S.2d 628), the Court of Appeals adopted the definition found in 766 of the Restatement Second of Torts for tortious interference with contract, which is: "One who intentionally and improperly interferes with the performance of a contract (except a contract to marry) between another and a third person by inducing or otherwise causing the third person not to perform the contract, is subject to liability to the other for the pecuniary loss resulting to the other from the failure of the third person to perform the contract."