After my last post on the national income pie, many readers asked about wealth, i.e. accumulated assets.

A new chart from the Economic Policy Institute, using data from NYU Economist Ed Wolff, shows that more than 80% of the nations wealth gains between 1983 and 2009 went to the wealthiest top 5%. The top 1% gained 40% of the nations total wealth gain, while the next 4% gained 41.5%.

The...