Networks connect different places through nodes and hubs. Connections between nodes and hubs are called flows, which include the movement of money, raw materials, manufactured goods, information, and people. As technology and market forces increase trade and migration, the world is becoming more interconnected and interdependent. What happens in one place now affects others, and people and companies depend more on each other. For example, a drop in car sales in Asia could impact job losses at Nissan's plant in Sunderland.