They harvest the olives by laying out nets, and shaking the olives off the trees. The guy on the left has a stick. The guy on the right has a gas-powered tree-shaker. Even so, the way to get olives is shake the tree. So, there's a handful of people who own the land and trees, and a huge and very poor group of people who shake trees.

And you can't eat fresh olives. I don't know what makes an olive an olive, but they don't taste right if you pick 'em off the tree, lemmee tell ya.