Duckworth came to the $2.6 billion figure by saying that Americans spend $580 million a year to replace stolen phones, and pay $4.8 billion for premium insurance from their carrier. Duckworth believes that without having to worry about having their phone stolen at gun point, Americans will switch to lower cost insurance plans like Square Trade that don't cover stolen handsets. With a Kill Switch, the $580 million would not have to spent, and the lower cost insurance would save Americans $2 billion a year in premiums.
Both houses of Congress have seen bills introduced to mandate a Kill Switch, but neither side has scheduled a vote on the issue. The public wants a Kill Switch according to Duckworth. In fact, 99% of respondents to his survey are in favor of such a theft deterrent. So what's holding it up? According to San Francisco D.A. Gascon, the carriers don't want to lose the profits they are making on selling insurance that covers thefts. According to industry trade magazine Warranty Week, the top four carriers in the U.S. brought in $7.8 billion in smartphone insurance premiums last year.
source: CreightonUniversity via HuffingtonPost, Engadget