July 2008

Hal Varian, Google's Chief Economist and University of California at Berkeley professor, talks with Russ Roberts about Google, the role of technology in our everyday lives, the unintended paths of innovation, and the value of economics.

Doug Rivers of Stanford University and YouGov.com talks with EconTalk host Russ Roberts about the world of political polling. Rivers explains why publicly provided margins of error overstate the reliability of most polls and why it's getting harder and harder to do telephone polls. Rivers argues that internet panels are able to create a more representative sample. Along the way he discusses automated telephone polls, the Bradley effect, and convention bounce, and the use of exit polls in calling states in Presidential elections.

Eric Hanushek of Stanford University's Hoover Institution talks with EconTalk host Russ Roberts about the strange evolution of school finance in the last four decades. In particular, the courts have played an important role in recent years in mandating expenditure increases for public school systems. Hanushek talks about why this has come about and the lack of effect these expenditures have had in affecting student achievement.

Michael Munger of Duke University talks with EconTalk host Russ Roberts about Munger's recent trip to Chile and the changes Chile has made to Santiago's bus system. What was once a private decentralized system with differing levels of quality and price has been transformed into a system of uniform quality designed from the top down. How has the new system fared? Not particularly well according to Munger. Commuting times are up and the President of Chile has apologized to the Chilean people for the failures of the new system. Munger talks about why such changes take place and why they persist even when they seem inferior to the original system that was replaced.