Physical capital helps companies become more . For example, a computer manufacturing company put new machines on its assembly line so it can now assemble 100 units per hour. Nearby, a graphic arts firm bought new, faster computers, which allowed employees to produce detailed designs much . Additionally, the local police department in this city bought a new communications system, enabling employees to communicate faster and more , reducing the amount of spent per call.

Suppose you are a freshmen in college and you have not declared a major. one reason you enrolled at your respective college was the school's vibrant social life. at the same time, you want to balance your academic life because you know that your grades will matter for graduate school or job applications.you decide to forgo partying for two hours to study for an upcoming economics exam. in your first semester's principles of economics class, you learn that the enjoyment you would have received from partying is an example of a(n)