Shadow Chancellor John McDonnell says he would force all large firms to share ownership with staff.
The party votes for the change as a union boss says some MPs are "almost asking to be deselected".
What lies behind the row over MP deselection that broke out at Labour's annual conference?
Labour MPs criticise Len McCluskey and Mark Serwotka as Jeremy Corbyn says anti-Semitism is a "scourge".
Labour MP David Lammy calls on leader Jeremy Corbyn to back a "People's Vote" on the final Brexit deal.