Opinion Editorial

Monday, August 24, 1998  

A Capital Gains Tax Cut Pays for Itself

On June 24, House Speaker Newt Gingrich, Georgia Republican, introduced H.R. 4125, a bill to reduce the maximum capital gains tax rate from 20 percent to 15 percent. Shortly thereafter, House Ways and Means Committee Chairman Bill Archer, Republican of Texas, asked the Congressional Budget Office (CBO) to analyze the potential impact of such legislation on the economy. On August 4, the CBO sent its report to Chairman Archer, concluding that a cut in the capital gains tax would have little, if any, impact on economic growth.

The CBO based its judgment primarily on the results of several econometric models. These are complex computer programs designed to simulate economic conditions. According to CBO's analysis of the results, the best of them indicated that the total size of the gross domestic product (GDP) might be larger by 0.2 percent at the end of 10 years. Other programs showed an even smaller impact or even a negative one.

A number of prominent economists, such as Michael Boskin of Stanford University, have questioned this conclusion. They point out that the most important effect of cutting the capital gains tax is on economic variables that are difficult or impossible to quantify. In particular, cutting the capital gains tax would stimulate entrepreneurship, risk-taking, innovation, new business startups and venture capital.

In the initial draft of the CBO report, there was no mention whatsoever of these potential channels through which a reduction in the capital gains tax might impact on economic growth. It was only grudgingly acknowledged in the final draft, although ultimately dismissed on the grounds that such effects cannot be estimated by the computer models.

The impact of entrepreneurial activity need not be large to be meaningful, however. Given that the CBO estimates GDP will be more than $108 trillion over the next ten years, the economy will only have to grow 0.17 percent faster to completely pay for the estimated $40 billion revenue loss from H.R. 4125.

Moreover, a revenue loss can easily become an increase (see figure). Last year, Congress's Joint Committee on Taxation (JCT) estimated that a reduction in the capital gains tax from 28 percent to 20 percent would cost the Treasury $22 billion over 10 years. After this legislation took effect, however, the JCT revised this loss into a $47 billion revenue gain -- more than enough to pay for Mr. Gingrich's new tax cut.

In other words, combining the two tax cuts together would only reduce capital gains revenues to what was previously expected without any tax cut at all. Some people would call this a free lunch.

Source: Bruce Bartlett, senior fellow, National Center for Policy Analysis, August 24, 1998.



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