Thomas Piketty has responded in detail to the FT's criticism of the wealth inequality statistics in his Capital book (see earlier post on this) - click here. Wealth inequality data is much harder to collect than income inequality data for the long run. My paper on wealth inequality in Ireland over the period 1858 to 2001 uses probate data to measure wealth inequality. The findings of my paper agree with Piketty's view that wealth has become more concentrated over recent decades.
Daron Acemoglu, Simon Johnson, Amir Kermani, James Kwak and Todd Mitton have written a paper on whether firms connected to Timothy Geithner benefited from these connections. They do so by looking at how stocks of these firms reacted to the announcement that he was a nominee for Treasury Secretary in November 2008. They find that there were large abnormal returns for connected firms. Below is the paper's abstract and the full paper is available here . The announcement of Timothy Geithner as nominee for Treasury Secretary in November 2008 produced a cumulative abnormal return for financial firms with which he had a connection. This return was about 6% after the first full day of trading and about 12% after ten trading days. There were subsequently abnormal negative returns for connected firms when news broke that Geithner's confirmation might be derailed by tax issues. Excess returns for connected firms may reflect the perceived impact of relying on the advice of a small ne...