“Every city and town in America would be bankrupt if they kept their books the way private-sector companies keep their books - because of the obligation cities and towns have taken upon themselves to provide health care for their retirees.”

American business scholar and professor, Christensen is best known for developing the theory of disruptive innovation, which explains how established companies often fail to recognize emerging markets that eventually overtake them. His work reshaped strategic thinking in corporate leadership and entrepreneurship.