Stockholm School of Economics hosted the Nobel Symposium on Foundations of Organization on August 28 and 29. Many prominent figures in economics, business administration and sociology have taken part in this symposium. Papers, slides and discussions can be found on this page. Interestingly, MIT prof. Robert Gibbons presented a SEVENTY-EIGHT page long paper on Economic Theories of Internal Organization, in which he tries to present an integrated framework on the internal structures and processes of an organization by combining insights from economics, sociology, politics and business strategy. Although it's huge, it is worth a read!
Update (Dec. 16, 2009): the former links to this program were broken, and now they are all fixed. Thanks to James Yen for the pointer!