playSteven Levitt analyzes crack economics
playSteven Levitt on child carseats
playHans Rosling shows the best stats you've ever seen
playBarry Schwartz on the paradox of choice
playHans Rosling's new insights on poverty
playNgozi Okonjo-Iweala on aid versus trade
playSteven Pinker on the myth of violence
playSugata Mitra shows how kids teach themselves
playYochai Benkler on the new open-source economics
playPaul Collier on the "bottom billion"
playDan Gilbert on our mistaken expectations
playDan Ariely on our buggy moral code
playDan Ariely asks, Are we in control of our own decisions?
playHans Rosling: Asia's rise -- how and when
playSendhil Mullainathan: Solving social problems with a nudge
playDaniel Kahneman: The riddle of experience vs. memory
playEsther Duflo: Social experiments to fight poverty
playLaurie Santos: A monkey economy as irrational as ours
playJeremy Rifkin on "the empathic civilization"
playNic Marks: The Happy Planet Index
playMartin Jacques: Understanding the rise of China
playHans Rosling and the magic washing machine