That is a tough question: West Germany and Berlin, the Soviets declared the new currency void in the eastern partition under their control. Days later, the Soviet government closed supply lines to West Berlin. The United States Air Force and the British Royal Air Force organized a massive effort to deliver needed food, coal, and medical supplies into Berlin to thwart the Soviet blockade. The round-the-clock operation, which became known as the Berlin Airlift, sustained the residents of West Berlin for over a year, and secured the freedom of West Berlin from Soviet control.<span> </span>
In economics, marginal cost is the change in the total cost that arises when the quantity produced is incremented by one unit; that is, it is the cost of producing one more unit of a good.
