By Kevin Hassett
The best medicine can taste awful.
The governments of the U.K., Ireland and Greece have embarked upon ambitious, sometimes painful efforts to restore their economies to sustainable growth paths. Of the three, the U.K. and Ireland took their medicine, following the lessons of past efforts to pull national economies away from spiraling debt. Greece decided the taste was just too awful, and its irresponsibility threatens every euro-zone country.
The history of the modern welfare state is replete with examples of fiscal calamities. In good times, politicians expand government spending as far as soaring revenues will let them. In bad times, when the bubble bursts, countries find themselves in a ditch.
Numerous fixes have been tried over the years, and economists have created a cottage industry studying them. What has emerged is a consensus about what works, a consensus that is about as strong as any in the macroeconomics literature.
The antidote to fiscal crisis is fiscal consolidation, a dramatic change in spending and tax policy that reduces the indebtedness of a nation. Such consolidations have relied on varying degrees of tax increases and spending reductions. Some have successfully reduced debt, some haven’t. The data tell a clear story: What works is cutting government spending.
A series of influential papers by Harvard University economist Alberto Alesina and various co-authors found decisive evidence that successful consolidations rely almost exclusively on spending reductions, while unsuccessful consolidations seek to close 50 percent or more of the gap with tax increases.
Cutting Is Key
A recent study by the International Monetary Fund supports the principle that cuts, particularly to entitlement programs, are key.



