Where? Brad DeLong, too lazy to surf today.
Click on Sustainable Economics, at the top right. This will toss you an Acrobat file which you should be able to print. Here's a snippet:
"The benefits of mileage-based auto insurance In December 1998, the EPI conference, "The Benefits of Mileage-Based Auto Insurance Policies," brought together researchers, government agencies, insurance executives, and nongovernmental organizations to discuss the potential for auto insurance policies that assess premiums by the numbers of miles driven, rather than by traditional criteria, such as year of vehicle. At the conference, four papers were presented and discussed: two papers dealt with some of the more technical aspects of mileage-based policies, while the other two focused on some of the practical issues surrounding the implementation of these policies. To learn more, download a conference report in portable document format (Acrobat PDF).