. >> and just underscoring a point that ben made, andy levin's paper, andy's going to be on the next panel, goes into a lot of depth on the points that were just made. let's see is there anyone way in the back there? okay, person waving your paper other there. >> the chinese have made a concerted effort in the last two or three years to establish the u.n. as a more prominent currency. they've got the sdr thing going on, they've got a number of other moves they're making including the other investment bank. do you agree that having that currency as an additional reserve currency would be good for the world economy or do you think that would be bad for the world economy and how do you think their effort to establish that as a reserve currency will affect the euro? thank you. >> well, i think that in order for this to be a reserve currency there's a lot more work to be done to liberalize the foreign exchange regime, to make it a floating exchange rate, to make it fully convertible, etc. i think those would all be positive things for the world and for china and i hope they'll continue to