Smith on Money and Banking
Smith's analysis of money, credit, and banking crises in 18th-century Scotland anticipated modern debates about financial regulation and monetary policy.
Money as a Tool, Not Wealth
Smith's analysis of money began with a fundamental distinction: money is not wealth itself but the instrument by which wealth circulates. Gold and silver are merely 'the great wheel of circulation,' valuable only insofar as they facilitate the exchange of real goods and services. This seemingly simple point had radical implications, because the entire mercantilist system rested on the conflation of money with wealth.
Smith drew an analogy with a highway. A well-maintained road is essential for commerce, but no one confuses the road itself with the goods carried upon it. Similarly, money is essential infrastructure, but accumulating it at the expense of productive activity is as foolish as building roads no one travels.