The Wealth of Nations
The Wealth of Nations
by Adam Smith

The Wealth of Nations: Book 2, Chapter 1 Summary & Analysis

Summary
Analysis
When people only have enough stock to maintain themselves for days or weeks, they simply try to stretch it out for as long as they can and replenish it by working. This is how most of the world’s working poor live. In contrast, when people build up enough stock to sustain themselves for months to years, they generally set aside a portion of it for their survival, while investing the rest—which is called capital—to make revenue.
Smith’s terminology might be confusing, but his point is simple enough. Some people live paycheck-to-paycheck. Others save enough to live comfortably, with a reserve for unplanned or emergency expenses. And a subset of these savers ultimately save enough to actually invest their savings in other kinds of economic activity, so that it produces revenue for them year after year. Today, we might think of investments in terms of stocks and bonds, but these were only just becoming common in Smith’s time. (Indeed, Smith will later explore how and why they were created, then offer his suggestions for regulating them successfully.) Instead, Smith pictures investment in the more conventional terms of starting a business.
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There are two kinds of capital: circulating capital, or capital used to produce or obtain goods that are sold for profit, and fixed capital, or capital used to improve production processes by buying machines, improving land, and so on. Merchants have only circulating capital. Most tradespeople have mainly circulating capital, with a small amount of fixed capital in the form of their tools (like a weaver’s loom). Smiths, millers, and miners have even more fixed capital. Farmers have both significant fixed capital (in the form of agricultural tools) and significant circulating capital (which they spend hiring laborers). Sheep and cattle are fixed capital if kept for wool and milk, but circulating capital if slaughtered for meat.
Circulating capital is easy to replace during prosperous times and sell off at a discount during stressful ones, while fixed capital investment requires relative certainty about the economic future, because it generally takes several years to pay off. For this reason, fixed capital investment also represents a longer-term, deeper investment in a particular place than circulating capital does. Merchants can easily take their money elsewhere, but shutting down a factory is far more difficult—and far more consequential for the local community. Virtually all major productivity improvements require fixed capital investment, so nations must attract it if they truly want to achieve long-term economic growth.
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Like an individual’s stock, a society’s stock is also made of three parts: circulating capital, fixed capital, and a reserve for immediate consumption. This reserve includes food, clothes, furniture, and owner-occupied properties. (But these can all turn into capital if lent out.) Society’s fixed capital stock comprises machines, buildings that earn revenue, land improvements, and the talents that people acquire through education and training. Finally, society’s circulating capital stock also has four parts: money, merchants’ unsold provisions, unused raw materials, and manufacturers’ finished but unsold products.
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As these provisions, raw materials, and unsold products get sold, they either go to replenish the stock reserved for consumption, or they get invested into fixed capital. In turn, this fixed capital only produces revenue when combined with circulating capital—for instance, machines will produce nothing unless raw materials are fed through them and people are paid to operate them. And even though circulating capital is constantly sold and converted to fixed capital, this circulating capital is constantly replenished by agriculture, mining, and fishing. In turn, farms, mines, and fisheries require both fixed and circulating capital to operate—and, controlling for fertility, their productivity rises in proportion to the capital invested in them. In safe countries, people put all their stock into fixed capital, circulating capital, or the reserve for consumption. But in dangerous ones, they often bury much of it underground for safekeeping.
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Quotes
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