Entrepreneurship on the wane?

Yesterday's WSJ ran a front page piece citing economic evidence that risk-taking and entrepreneurship are on the wane in the U.S.  The article cites four trends: (1) companies are very slow to add new positions, (2) investors have not been putting as much money into new ventures,  (3) fewer businesses are starting up, and (4) workers are less likely to quit their job or relocate. 

Putting all this together, the implication is that the supply side of the economy now reacts to new opportunities much more sluggishly.  This could help explain why the recovery has been so slow.