Why Social Security Is the Best Retirement Saving Vehicle
Last week I wrote that Social Security is the healthiest component of the U.S.'s retirement saving system and should therefore be expanded. This isn't a popular position; liberals tend to prefer defined-benefit pensions from employers and conservatives defined-contribution accounts, such as 401(k)s and individual retirement accounts. But the reason Social Security works so well is that it lacks a fundamental problem that undermines the effectiveness of these other retirement vehicles.
Both defined-benefit pensions and defined-contribution accounts are based on a shared and problematic premise: It is possible to set aside x percent of today's gross domestic product for retirement and generate retirement income from those savings that exceeds x percent of future GDP. This is to be achieved by investing retirement savings in assets that typically grow at a faster rate than the economy as a whole.