Explain the theory of absolute advantage

In economics, the principle of absolute advantage refers to the ability of a party (an individual, or firm, or country) to produce a good or service more efficiently than its competitors. Adam Smith first described the principle of absolute advantage in the context of international trade, using labor as the only input.

Absolute advantage is when a producer can produce a good or service in greater quantity for the same cost, or the same quantity at a lower cost, than other producers. ... By specialization, division of labor, and trade, producers with different absolute advantages can always gain more than producing in isolation.

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.