A new Penn Wharton study finds that slashing benefits—not raising taxes—produces the biggest economic gains. Here's the counterintuitive math.

A new Penn Wharton study finds that slashing benefits—not raising taxes—produces the biggest economic gains. Here's the counterintuitive math.

Social Security's trust funds are due to run out, which would prompt benefit reductions. Yet those cuts do not have to affect all beneficiaries, experts say.