To shore up Social Security, this controversial proposal calls for limiting retirement plan tax perks

Tax incentives to save in work retirement plans reduce federal tax revenue and don't meanfully change saving behavior, economists argue.

Limiting those perks can free up funds to shore up Soc Social Security hey argue.

But the plan has plenty of critics, including one economist wh Social Security's te of money.

401(k)s have an advantage because the the next decade by an employer, who picks a plan provider and default inv the Center for Retirement Research inc Boston College e not as popular as 401(ks) plans.

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