Years That RSRs Were Implemented in Four US States
| Year | State |
|---|---|
| 2001 | Idaho |
| 2007 | Michigan |
| 2008 | Rhode Island |
| 2010 | South Carolina |
Regulations called RSRs prevent insurance companies from raising prices by large amounts. Researchers Naoki Aizawa and Ami Ko collected data about the years in which various US states implemented RSRs.