Steady State
İKT445 / Lecture 5
Lecture 5 · Week 5 · Lecture slides · about 45 min

Smith and the Onset of Modern Economics

Adam Smith and the birth of the classical school: the 18th-century background, classical tenets, The Theory of Moral Sentiments and The Wealth of Nations, the invisible hand, division of labor, competition and natural prices, value theory, growth and institutions.

By the end you can
  • Explain how the scientific and industrial revolutions prepared classical political economy.
  • List the classical school's main tenets and Smith's three functions of the state.
  • Distinguish natural prices from market prices, and use value from exchange value.
  • Trace the chain from division of labor to productivity, output and capital accumulation.
  • Identify Smith's influences and explain his influence on Marx, Bentham and the neoclassical school.

Smith is where the classical school begins. This page follows the Week 5 lecture slides in order: the 18th-century setting, the tenets of classical political economy, Smith’s life and books, the invisible hand, the division of labor, competition and prices, value theory, growth and institutions, and Smith’s legacy.

1. The Setting: Two Revolutions Behind Classical Economics

Last week covered early modern economic thought: mercantilism, physiocracy, and the early forerunners of the classical school. Smith gets a separate class because he founded the classical school and is often called the founder of modern economics: he gave the first formal and comprehensive analysis of political economy.

Two 18th-century revolutions prepared the ground.

The scientific revolution

The classicists took the next step: if nature is governed by natural laws, so are society and the economy. That is where the classical search for universal, immutable economic laws comes from.

The industrial revolution

The result: productivity of labor and land rose; peasants turned into wage laborers; privileged organizations were removed; population grew, through a higher birth rate and a lower death rate.

Check your understanding

Where did the classical economists get the idea that society and the economy are governed by natural laws?

2. Classical Political Economy: Tenets and Legacy

The main tenets

Beneficiaries and validity

The classical writers claimed their ideas would serve all of society, because they promoted capital accumulation and economic growth. Businesspeople were given a respectable position: seeking profit was good, and merchants and industrialists were serving society. Not everyone shared equally from industrialization, though: wage earners worked under harsh conditions, and the lecture also asks about long-term effects on the environment.

Classical economics justified the decline of mercantilism. Growing competition plus corrupt and wasteful governments made less government intervention look sensible.

Lasting contributions

How Smith’s view of wealth compares with the schools before him:

SchoolPeriodCore idea of wealthKey figures
MercantilismEarly modern era, roughly the 16th-18th centuriesNational wealth, pursued through trade and state power (bullion, export surpluses)The state-centered writers of the early modern period
Physiocracy18th-century FranceLand and agriculture as the source of wealthQuesnay and Turgot (Smith’s friends in France)
Classical schoolFrom 1776National output, driven by productivity and capital accumulationAdam Smith; later Ricardo and Malthus
Check your understanding

Which of the following is not a tenet of the classical school?

3. Adam Smith: Life, Influences and The Theory of Moral Sentiments

Life

Adam Smith was born in Kirkcaldy, Scotland, and went to Glasgow College at 14. He studied moral and political sciences and languages at Oxford. He moved back to his hometown first and then to Edinburgh, where he gave lectures on rhetoric and literature.

In 1751 he was elected professor of logic at Glasgow College, where he later held the chair of moral philosophy for 20 years. In 1759 he published The Theory of Moral Sentiments, after which his lectures focused on jurisprudence and political economy. He served as a private tutor in France, where he became friends with Quesnay and Turgot. In 1776 came The Wealth of Nations, after which he lived for two years in London. He returned to Edinburgh, where he spent the rest of his life (he died in 1790).

Timeline · Adam Smith's life and works1 / 10
16901720175017801687
1687
Newton's Principia

Background: the idea that nature runs on natural laws, which the classicists carried over to society. Newton lived 1642–1727.

Influences

The Theory of Moral Sentiments (1759)

The topic: the moral forces that limit selfishness and bind people together in a workable society. The first chapter argues that sympathy overcomes selfishness.

Smith divides the passions:

People feel for the social passions more, and thus sympathy overcomes selfishness. People also identify with our joy more than with our sorrow, and we tend to show our riches and hide our poverty.

People can exist only within society, where they have mutual injuries and need each other’s help. When this help is offered out of love, society becomes happy. Without love and affection, society can still exist, but less happily. Society cannot exist without justice, so justice is required.

How is selfishness controlled? Our morality determines rules of conduct that restrain our selfishness. These rules are the commands and laws of God. If we violate them, we are punished by shame and self-condemnation; if we obey them, we are rewarded with contentment and self-satisfaction.

WorkYearCentral question
The Theory of Moral Sentiments1759What moral forces limit selfishness and bind people together in a workable society?
An Inquiry into the Nature and Causes of the Wealth of Nations1776How does the market system turn self-interest into national wealth?

The Wealth of Nations is a 900-page book that gave Smith his fame as an economist. On wealth, the views of the schools differed: mercantilists looked at national wealth; physiocracy looked at agriculture; Smith’s analysis was much more complex.

Check your understanding

Which work did Smith publish in 1759, before The Wealth of Nations?

4. The Invisible Hand

Where the problem came from: Hobbes and Locke

The origin of the problem is Thomas Hobbes and his social contract theory in Leviathan. Individuals are selfish, which leads to chaos and anarchy; states are then established to ensure that social interests are protected.

John Locke offered a moderate version. He rejects Hobbes’s idea that “man is wolf to man” (homo homini lupus) and stresses the capacity of consent and dialogue among rational individuals. But in this line of thought, the idea that a social order can be established is missing.

Concept map · Self-interest and social order
Hobbes
  1. Selfish individuals
  2. Chaos and anarchy
  3. A state is set up to protect social interests
Smith: the invisible hand
  1. Self-interest
  2. Unintended consequences of intentional action
  3. Market coordination: supply and demand regulate each other
  4. Social benefit: the harmony of interests

Locke stresses a third route: consent and dialogue among rational individuals.

Mandeville, and Smith’s first answer: sympathy

Mandeville (The Fable of the Bees; the slide dates it 1704, the book appeared in 1714 after a 1705 poem) claimed that self-interest, laziness and hedonism are the basic motives that create a rich society. Smith did not hold this view, but he reconciled individual interests with virtuous behavior.

His first attempt was the concept of sympathy: the human capacity to put oneself in the shoes of others. Human beings have similar properties, which make them understand each other, and this understanding enables a social order that protects individual rights and freedom.

The invisible hand in the Wealth of Nations

In the Wealth of Nations, the mechanism is different: self-interested behavior (not sympathy) leads to social order. The difference between the two books was called “Das Adam Smith problem” by German writers.

The lecture’s resolution: when Smith talked about sympathy, he referred to a rational process of reflection and the human capacity of understanding, rather than to emotions.

From the economic point of view, the invisible hand describes how the market system works. The market system prevents the depletion of resources by regulating supply and demand, and no government intervention is needed. The market system provides both an efficient allocation of resources and the protection of individual rights and freedoms.

Check your understanding

Which thinker argued, in Leviathan, that selfish individuals would produce chaos and anarchy unless a state is established to protect social interests?

5. Division of Labor and Capital Accumulation

The Wealth of Nations opens with this statement:

The greatest improvement in the productive powers of labor, and the greater part of the skill, dexterity and judgment with which it is anywhere directed or applied, seem to have been the effects of the division of labor.

The lecture’s example: a pin manufacturer makes one pin a day by completing every stage himself. When production is divided into specific stages and each stage is carried out by a single worker, average productivity increases greatly. (In the book’s famous version of the pin factory, about ten workers performing roughly eighteen distinct operations made tens of thousands of pins a day, far more per worker than one pin a day. That detail is textbook context for the book example, not the lecture’s numbers.)

Why does the division of labor emerge? From the propensity in human nature to truck, barter and exchange one thing for another. Animals do not do that: dogs do not exchange bones.

The productivity gain results from three circumstances:

  1. Increase of dexterity (skills) in every particular workman.
  2. Saving of the time commonly lost in passing from one work to another.
  3. Invention of many machines that facilitate and abridge labor.

The result is a circle: higher productivity leads to new goods and markets, and to a deepening of existing markets (via innovation), which leads to even more exchange, and thus to even more productivity. In short: labor productivity leads to greater wealth or total output, which leads to capital accumulation.

Concept map · Smith's virtuous circle
  1. Division of labour
  2. Higher labour productivity (dexterity, time saved, machines)
  3. Greater total output: wealth
  4. Capital accumulation
  5. More demand for labour and wider markets

…and back to “Division of labour”. The loop repeats.

The division of labour is limited by the extent of the market, so growth deepens it further.

Check your understanding

Which is not one of Smith's three circumstances that raise productivity under the division of labor?

6. Competition, Equilibrium and Disequilibrium

Competition fulfills two functions at once:

  1. It brings about equilibrium.
  2. It is the major driving force behind the division of labor and capital accumulation.

In this second role, competition reflects the dynamic aspect of capitalism. In its equilibrating role, Smith shows how prices and the long-run equilibrium are determined.

Natural priceSmith's long-run priceFormula sheet →
Pn=w+r+πP_{n} = w + r + \pi
PnP_{n}
natural price
ww
wages
rr
rents
π\pi
profits

Use it when you want to recall what determines Smith's natural price: the sum of wages, rents and profits.

Market prices fluctuate around the natural prices depending on changes in the effectual demand (demand backed by the ability and willingness to pay). Demand plays no role in the determination of natural prices, because only production costs are included in the natural price. In the long run, market prices converge to the natural prices. Natural prices act as the “centers of gravity” - remember Newton.

The lecture’s example: when there is a public mourning, the demand for black clothes increases temporarily and the market price rises. In the long run, the effect of demand disappears and prices return to their normal or natural levels. What does this is the free competition process: the process in which capital seeks higher profits by moving across the sectors.

In short: competition tends to create a long-run equilibrium characterized by natural prices.

Technology and innovation create new possibilities for profit and growth by increasing productivity. At the same time, they destroy the old ways of carrying out production. This is what gives capitalism its dynamic character - similar to Schumpeter’s famous idea of “creative destruction.”

QuestionClassical school (Smith)Neoclassical school
What is the equilibrium price called?Natural priceMarket price
What determines the long-run price?Costs of production: wages, rents and profitsDemand and supply, with value grounded in utility (standard textbook view)
What is the role of demand?No role in natural prices; market prices fluctuate with effectual demandCentral to price determination
Check your understanding

In Smith's system, which price is determined by wages, rents and profits alone and acts as a center of gravity?

7. Prices and Values

Capital, profit and wages

In the classical school, capital does not refer to “produced production goods” in physical terms, but to a sum of money out of which both labor and capital equipment are paid. A capitalist has capital in the beginning, pays the costs of labor, land and machines as advances, and the difference at the end between the total revenue and these costs constitutes the capitalist’s profit. Profit is therefore a surplus, and a necessary element for capital accumulation.

Capital has two components:

The demand for labor and capital goods depends on the amount of the capital fund that the capitalists have at the beginning. Labor supply is determined by the growth of population. Smith was not as pessimistic as Malthus: population growth is good for the division of labor, growth and consumption, and wages depend on capital accumulation, which raises the demand for labor.

Why this is not a rigorous theory of prices

The natural price is the long-run equilibrium value of wages and rents, but these are themselves natural prices of labor and land. So a natural price is explained with other natural prices. Such a formulation can only yield general prices, not relative prices. A change in one of the prices in the system will change all other prices as well: a wage change, for example, will bring about higher increases in the prices of agricultural goods, which are more labor intensive, than in the prices of industrial goods.

Use value and exchange value

Smith distinguishes use value from exchange value. Exchange value is not important for the determination of use value. His famous example:

Nothing is more useful than water, but it will purchase scarcely anything; scarcely anything can be owned in exchange for it. A diamond, on the contrary, has scarcely any value in use; but a very great quantity of other goods may frequently be obtained in exchange for it.

So use value is not a good measure of value.

The labor theory of value and its limits

Most goods produced are products of labor, so the amount of labor is the source and measure of value. This is valid only in the early and rude state of society, which precedes both the accumulation of stock and the appropriation of land. So:

The labor theory of value is not valid in advanced economies. The lecture’s example: suppose two commodities whose production takes two hours each. Commodity A, potatoes, is grown where land is fertile and requires no capital to produce. Commodity B, cotton yarn, requires expensive machinery in the production process. They are produced using the same amount of labor; if one kilo of cotton yarn and ten kilos of potatoes could be exchanged for each other in the market, which one would people choose to produce? Potatoes, of course, because they could avoid investing large amounts of capital if they are convinced that they would get the same return.

So in an advanced economy, where capital investments and land resources are important, goods will normally be exchanged for other goods, for money and for labor, and real value can no longer be measured by labor alone.

Demand is not a factor of price. In the long run, the determinants of price are only the costs of production: wages, rent and profits. This is valid only in the case of constant costs per unit of output. If unit costs are changing with production levels, demand, supply and economies of scale are also important.

Check your understanding

Smith's labor theory of value (labor as the source and measure of value) is valid only:

8. Growth and Institutions

What drives economic growth in Smith’s system? First and foremost: the division of labor. Then:

All of these increase productivity. In the lecture’s words: so Smithian growth is all about productivity.

Economic development also depends on institutions:

The institutional component in Smith’s works has been largely neglected.

Check your understanding

For Smith, what is the first and foremost source of economic growth?

9. Smith’s Place: Conclusion and What Comes Next

Check your understanding

According to the lecture, whose thinking was Marx's real ideological enemy?

Exam practice

Exam question 1

Which mapping of school to view of wealth is correct?

Exam question 2

In which year was An Inquiry into the Nature and Causes of the Wealth of Nations published?

Exam question 3

Who wrote The Fable of the Bees (1704) and claimed that self-interest, laziness and hedonism are the basic motives that create a rich society?

Exam question 4

A period of public mourning temporarily increases the demand for black clothes. In Smith's framework, what happens?

Exam question 5

Which is not one of Smith's three functions of the state?

Summary and review

Flashcards

Review deck · 18 cards0/18 mastered

Step-by-step examples

This ladder trains the skill the exam needs: read the question, think in steps, and say why each step follows. Try to give each step in your own words before you reveal the next line.

Easy

Worked example · Easy 1 · Umbrellas in the rainy season0/6

A rainy month makes everyone want umbrellas, and the market price of umbrellas jumps above its normal level. Using Smith's two prices, what has happened, and what brings the price back in the long run?

Interactive graph · market price and natural price (Smith)period 12: market price 10.1
6101418natural price = wages + rent + profitrainy month: demand ↑pricesellers (capital in umbrellas)0481216

Enough capital has moved in: the market price is back at the natural price, its "centre of gravity". This is the whole story Smith tells, and the exam answer: effectual demand moves the market price; free competition pulls it back.

Worked example · Easy 2 · Why the pin factory produces more0/7

One worker alone completes every stage of making a pin, which gives about one pin a day. When the stages are split among workers, output per worker rises greatly. Give Smith's three reasons and the chain that follows.

Interactive graph · the pin factory (Wealth of Nations, Book I, ch. 1)with division of labour
1101001,00010,000One worker4,800Ten workers48,000pins a day (log scale) · Smith: ten workers, about 48,000

Dexterity. A worker who does one small task all day becomes very fast and skilled at it. With the work divided, each worker's share is about 4,800 pins a day: hundreds of times more than working alone. The lesson: productivity, not gold, is the source of the wealth of nations, and the division of labour is limited by the extent of the market.

Your turn. Try this before moving up to the medium rung.

Check your understanding

Which change would raise the natural price in Smith's system?

Medium

Worked example · Medium 1 · Water, diamonds and value0/6

Smith writes that nothing is more useful than water, yet it purchases scarcely anything, while a diamond has scarcely any value in use and purchases a great quantity of other goods. Explain the sentence and its lesson for value.

Worked example · Medium 2 · Potatoes against cotton yarn0/7

Two goods each take two hours of labor. Potatoes grow on fertile land and need no capital. Cotton yarn needs expensive machinery. Smith says labor alone can no longer measure value. Explain why with this example.

Worked example · Medium 3 · Capital and its two parts0/7

Smith's capital is not a pile of machines; for the classicals it is a money fund. Explain what the capitalist does with it, and separate fixed from circulating capital with one example each.

Your turn. Now test the last three examples before the exam rung.

Check your understanding

Which payment belongs to circulating capital in Smith's division?

Exam level

Short-essay questions now. The steps give a model answer block by block: thesis, argument 1, argument 2, argument 3, conclusion.

Worked example · Exam 1 · The invisible hand answers Hobbes0/7

Exam question: 'Explain the invisible hand and how it responds to the problem raised by Hobbes. Use the contrast with Mandeville and the resolution of the Das Adam Smith problem.' Build the answer.

Worked example · Exam 2 · Is the natural price a rigorous theory?0/7

Exam question: 'Why is Smith's theory of natural prices not a rigorous theory of relative prices?' Write the model answer.

Worked example · Exam 3 · From pin factory to growth and institutions0/7

Exam question: 'Trace Smith's chain from the division of labor to economic growth, and name the institutions that must support it.' Model answer.

Your turn. One last question to check the whole ladder.

Check your understanding

A classmate writes: Smith wanted no government at all. Which correction matches the lecture?