The Economy of Sound is the fifth studio album by American post-grunge band Seven Mary Three.

It was released on June 5, 2001, on Mammoth Records.

[4] The album's Billboard-charting singles were "Wait" (#7 on Hot Mainstream Rock Tracks and #21 on Hot Modern Rock Tracks) and "Sleepwalking" (#39 on Hot Mainstream Rock Tracks).

[5] The Encyclopedia of Popular Music wrote that the album "jettisoned the vestiges of the band's grunge sound in favour of crowd pleasing hard rock.

"[2] All songs written by Jason Ross, except where noted.