Is Open Source Recession Proof?

DaMan writes "ZDNet asks Is open source recession proof? 'So, how might a recession affect open source software? Well, first off, I think that any business model that relies on volunteers could certainly see interest decline if times get tough. There are a lot of businesses that rely on people working for them for free because they get a pay check somewhere else, and I think that a recession would make people question working without getting any dollars in return.'"