mr. barthold.please proceed. >> thank you, members of the committee for today's hearing, chairman hatch and senator wyden have asked me to briefly review some of the tax revoou issues. my colleagues prepared for you more detailed background information that was released last friday in our joint committee document. it's important to remember that in assessing any tax system or reform, there's four key dimensions. that we always look at. first, does the tax system promote economic efficiency? does the tax system promote economic growth? is the tax system fair? anded a min strbl both for the taxpayer and the internal revenue service? there may be other policy occurs where we fit in the picture, but invariably, it's the case that these different policy goals are in conflict. policy designed to promote economic neutrality, may conflict with fairness. and so, those were issues that the business working group was always grappling with when thinking about the issues before them. some of the proposals under