Developed connectivity can also expand an economy’s performance by making it easier for companys to invest outside their home country, which is known as foreign direct investment (FDI). Most obviously, the link between connectivity and FDI may come about because foreign investment necessarily entails some movement of staff: whether to transfer technical know-how or management oversight. But increased connectivity also allows firms to exploit the speed and reliability of air transport to ship components between plants in distant locations, without the need to hold expensive stocks of inventory as a buffer. Less tangibly, but possibly just as important, improved connectivity may favor inward investment as increased passenger traffic and trade that accompanies improved connectivity can lead to a more favorable environment for foreign firms to operate in.