revised The supply chain has steadily increased in reliability and size due to the airplane. Shipping goods worldwide used to take days, weeks, or even months, but nowadays, it just takes a few hours, sometimes even the same day. The drawback of this technological advancement is that it favors larger firms that can afford to ship their products by air. Smaller businesses find themselves in a position where they are forced to pay more prominent organizations to transfer their products for them. While smaller businesses may not afford overhead costs, more giant corporations can afford to send their personnel on business-related travel meetings and training sessions