A number of law schools around the nation are applauding Harvard Law School’s plan to waive third-year tuition for graduates who work five years in public service, but some also say that simply helping graduates who take low-salary jobs to pay off their loans accomplishes the same purpose.

Elena Kagan, dean of Harvard Law School, where tuition next year will be $41,500, said that the tuition waiver will be available in addition to programs already in place that subsidize loan payments for graduates who work in public interest jobs.