According to the book of Nebres titled Economics: Concepts, theories, and application, he mention that " The wealth of nations has also provided for possibly, more than any other single work in its field, as a lead to express systematically government's economic policies." This means that through this range of vision, has subjected to considerable modification by economists in the light of historical growth since Smith's time.
There are several key concepts of the Wealth of nations that Smith mention of how wealth is produced and distributed in society.
First, is the division of labor
Second is Wage rates.
Third is the distribution of wealth.
Fourth is the natural and market prices.
Fifth is Smith and mercantilism.
Sixth is law of diminishing returns.
Seventh is Smith and physiocracy.
Eighth is natural product.
Ninth is governments.
Tenth and the last concept is human conduct.
Book
Abriel M. Nebres " Economics:Concepts theories and application"
National Bookstore: Mandaluyong, Metro Manila, 2008. page 235
