The tax on capital gains directly affects investment decisions the mobility and flow of risk capital... the ease or difficulty experienced by new ventures in obtaining capital and thereby the strength and potential for growth in the economy.
Fudging the data in any way whatsoever is quite literally a sin against the holy ghost of science. I'm not religious but I put it that way because I feel so strongly. It's the one thing you do not ever do. You've got to have standards.