. >> charlie: there are other economists like milton freedman who suggest it is "poisonous" to look at the distribution system. >> to me, it's a lack of confidence in democracy. it's not poisonous to have transparency and know more about income and wealth and how the different groups are doing. let me say right away, to me, showing our wealth to different groups is not to conclude we'll solve every program just by taxing the top. but if we want to avoid national debate and hatred between social groups we just need more transparency about how the different groups are doing. >> charlie: and more taxation of the wealth of the -- >> depending on what we have. depending on what we see. if what we see in the data is that the different income and wealth groups are doing equally well and that they're all rising at the same rate, then why would you need more -- >> charlie: and when have you seen that since the 1980s? >> well, i can tell you rising inequality is much less of a concern in europe than the united states. >> charlie: much less of a concern? >> much less of a concern, yes, because yo