Paul Collier's discussed his book, The Bottom Billion. In the book, Professor Collier outlines four "traps" that the poorest countries in the world can find themselves in: the trap of civil war, the trap of being landlocked, the trap of having abundant natural resouces, and the trap of having a bad government. He responded to audience members' questions. The Bottom Billion was awarded the 2008 Lionel Gelber Prize.