Smith's theoretical U-turn from a micro-economical to a macro-economical view is not reflected in "The Wealth of Nations". Large parts of this book are retaken from Smith's lectures before his visit to France. So one must distinguish in "The Wealth of Nations" a micro-economical and a macro-economical Adam Smith. Whether Smith's quotation of "an invisible hand" in the middle of his work is a micro-economical statement or a macro-economical statement condemning monopolies and government interferences as in the case of tariffs and patents is debatable.