Keynote lectures and addresses:

Keynote address at CAED 2008 "Top Ten Questions for Understanding Firm Dynamics and Productivity Growth" 

Keynote address at Kauffman 2008 Conference (Copenhagen) on Entrepreneurship "The Dynamics of Young Businesses:  Importance for Growth and Measurement Challenges"

Distinguished Scholar Teacher Lecture November 2008 at Maryland "Mice, Gazelles and Elephants:  The Menagerie of U.S. Business Dynamics"