 Research in 2006 on the FairTax plan by Arduin, Laffer & Moore Econometrics shows that consumption would increase by 2.4% in the first year of the FairTax.The increase in consumption would be fueled by the 1.7% increase in disposable (after-tax) personal income.By the 10th year, consumption would increase by 11.7% over the current tax system; and disposable income would be up by 11.8%.