Getting any product to consumers, whether it’s a can of sardines or a screwdriver, requires that supply chains function well. The availability of labor is essential in each link of the supply chain. That includes the workers who make sure that your tinned fish and handy tools smoothly journey from their point of origin to where they’ll wind up, whether it’s a supermarket, hardware store or your front door. Amazingly, 90% of all internationally traded products are carried by ships at some point.