personal income tax codes and improving those, reducing -- you know, reducing inefficient exemptions, broadsening the base and so on. so from a purely demand side perspective, you know, tax cuts do provide income, do provide sources spending. there may be less soin some cas. you also think about the role of the tax code and promoting growth in the long term. >> and just one other quick question before my time expires. you would say that deficit finance tax cuts tend to pay for themselves? >> no. except in very rare circumstances. i don't think many people including many good friends of mine and both sides of the aisle would argue that tax cuts fully pay for themselves. the question is whether or not they improve efficiency in growth, not whether they fully pay for themselves. >> thank you, mr. chairman. i yield back. >> thank you, mr. chairman. and thank you, dr. bernanke for visiting with us today. clearly, this economic recovery has been long delayed. it remains fragile. my constituents are frustrated as are so many of us serving them that we're not doing some things on the fiscal side of the l