Two ways: It's voluntary, and you might get some of the profits if the company goes in the green. In a state socialist economy, you have to go work on the pig

Two ways: It's voluntary, and you might get some of the profits if the company goes in the green. In a state socialist economy, you have to go work on the pig farm or whatever. In a market-ish economy, the attachment to a particular community is more voluntary. You can, more often that not, choose which one you want to join.