The choreography of American politics
Polarized politicians
Income polarization and the electorate
Immigration, income, and the voter's incentive to redistribute
Campaign finance and polarization
Polarization and public policy
Where have you gone, Mr. Sam.
Polarized America : the dance of ideology and unequal riches by Nolan M. McCarty. ISBN 9780262134644. Published by MIT in 2006. Publication and catalogue information, links to buy online and reader comments.