6Thomas S., Me Caleb. Excess Burden, Benefit Taxation, and Efficiency in Public Expenditure [ J ]. The American Economic Review, 1980,70(3):501- 506.
7Richard R Hawkins. Popular Substitution Effects: Excess Burden Estimates for General Sales Taxes [J]. National Tax Journal; 2002, 55(4).
8Tom Lahti. An Examination of the Importance and Efficiency of Tax Incentives for Finnish Informal Investments[M]. Ministry of Trade and Industry,2007:1 - 12.
9Jason C., Niels V.. Tax Efficiency: Not All Taxes Are Created Equal[J]. The Fraser Institute, Vancouver,B. C., Canada. 2007: 28 - 32.
