As the competition in the college savings plan market mounts, funds are pulling out all stops including, in one case, corporate espionage, to win new investors, according to a lawsuit filed Oct. 20 against Fidelity Investments of Boston.

Fidelity stole the trade secrets for a marketing program that was initially proposed to it in 1998 by Savor Incorporated, a marketing firm in Plymouth, Mich., according to the lawsuit. Fidelity then gave Savor's plan to Upromise, another marketing firm in Brookline, Mass., according to the suit.

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