photo Harvard University - Economics Department
Economics Department

Why Has Regional Convergence in the U.S. Stopped? Visualization

 


Link to Paper

End of Income Convergence -- Poor states used to grow much more quickly than rich states, but this is no longer the case.

This graph looks best if you set the pulldown menu next to the xaxis to "log".

End of Directed Migration -- Rich states used to have more population growth than poor states, but this is no longer the case.

This graph looks best if you set the pulldown menu next to the xaxis to "log". Interesting comparisons:

  • Click on the menu titled "Select" in the sidebar on the right and scroll down to see the list of states. Check Mississippi and Connecticut. Early on, CT grows more quickly than MS, but in more recent years MS grows more quickly.
  • Compare Nevada and California. Early on, both are rich and grow quickly. Over time, CA's growth rate falls and it stays rich. People keep moving to NV, and it becomes poorer.

Rise of Land Use Regulation

Land Use Regulation is measured as the cumulative share of appeals court cases mentioning "land use". For example, in 1960 in Maryland, of all the cases considered from 1920 to 1960 in Maryland, 0.56% of them mentioned "land use".