Why Do You Need To Study This For Nine Years?

From a press release:

Data Systems International (DSI) announced today that it has been awarded a contract with Abt Associates to implement its industry-leading software, ClientTrack™, as part of the Social Security Administration's Benefits Offset National Demonstration (BOND). ...

Over the next 9 years, the BOND project will track and evaluate nearly 1 million U.S. citizens receiving Social Security Disability Insurance (SSDI) to assess whether a change in the SSDI benefits structure will improve their employment and income. Currently, recipients lose all of their SSDI income if they exceed certain income limits (i.e., the substantial gainful activity threshold; SGA). As a result, SSDI recipients may not actively pursue work opportunities due to concerns of losing their SSDI income. The solution being evaluated through BOND is to gradually reduce the SSDI benefit by $1 for every $2 above the SGA, thus providing a financial incentive for individuals to return to work and earn income beyond the current SSDI limits.