Since Piketty's 'Capital' was published, there's been a lot of interest in the relationship between 'r', the return on wealth and 'g', the growth rate of the ec

Since Piketty's 'Capital' was published, there's been a lot of interest in the relationship between 'r', the return on wealth and 'g', the growth rate of the economy, and how this relationship is influenced by the tax system. The ProPublica story provides obviously relevant data to this discussion. It is not, as Arnold would have it, "bullshit".