The geographically accurate cartogram above represents the size of the states based on their number of think tanks.  Washington DC contains one out of every five think tanks in the US.  Think tanks are clearly an east coast phenomenon.

The cartogram above represents the size of the states of the EU based on the number of think tanks.  The United Kingdom contains one out of every five think tanks in the Union.  With its impending exit, the EU is poised to lose 20 percent of its think tanks.