CCP Soundwave wrote:
"Incursions are not a big issue in terms of isk globally...the majority of isk in EVE comes off bounties"
https://forums.eveonline.com/default.aspx?g=posts&t=79891&p=3
Money supply in February 2012:
Incursion rewards = 8.7 trillion ISK
Bounty prizes = 33 trillion ISK
http://community.eveonline.com/devblog.asp?a=blog&nbid=9115
"Incursions are not a big issue in terms of isk globally...the majority of isk in EVE comes off bounties"
https://forums.eveonline.com/default.aspx?g=posts&t=79891&p=3
Money supply in February 2012:
Incursion rewards = 8.7 trillion ISK
Bounty prizes = 33 trillion ISK
http://community.eveonline.com/devblog.asp?a=blog&nbid=9115