WE ARE ALL NEOCONOMISTS NOW:

[I]f we're going to simultaneously address our two most pressing needs -- raising revenue and boosting growth -- we're going to have to break free from the 1986 paradigm.

That means asking the basic question: What is the single biggest problem with the tax code? It's not the complexity, bad as that is. The biggest problem is that it rewards consumption and punishes savings and investment.

You can't fundamentally address that problem within the 1986 paradigm. You can address it only through a consumption tax. This idea is off the table right now, but reality will inevitably drive us toward it. We have to have a consumption tax if we want to both grow the economy and reduce debt.

But isn't a consumption tax regressive since poor people spend a bigger share of their incomes than rich people? The late David F. Bradford of Princeton University effectively solved that problem with his so-called X Tax, which has recently been championed by Alan D. Viard of the American Enterprise Institute and others. Under the X Tax, you wouldn't pay the consumption tax at the cash register. Businesses would be taxed on their cash flow, taking an immediate deduction for investments rather than depreciating them over time. Households would pay tax at progressive rates on their wages but would not pay tax on income from savings.

The X Tax effectively taxes the money you spend right now and rewards savings and investment. The government could raise a chunk of revenue this way and significantly boost growth with little or no change in how tax burdens are distributed between rich and poor. Most economists vastly prefer consumption taxes to income taxes. 

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