Good tax policy vs. bad policy
Don Marron explains thusly:
Taxes on income, for example, are usually worse for the economy than taxes on consumption. That’s why there’s a rising chorus of economists recommending the introduction of a value-added tax, rather than higher income taxes, if our nation decides it wants to support substantially higher government spending. High tax rates similarly tend to be worse for the economy than low rates. That’s why economists usually favor broad tax bases and low rates, rather than narrow tax bases and high rates. Finally, it’s preferable to levy taxes on bads rather than goods. Where appropriate, taxes on pollution (e.g., emissions of greenhouse gases) should thus be preferred over taxes on working, saving, or investing.