Introduction
Although modern macroeconomics was formally developed by J.M. Keynes in 1936, early economists such as
Adam Smith, David Ricardo, J.B. Say, Karl Marx, and Alfred Marshall laid the groundwork with implicit macroeconomic ideas.
Classical macroeconomics emerged by extending microeconomic principles to the broader economy, assuming full employment and
perfect competition as foundational conditions.
This chapter explores the concept and types of unemployment, Say’s Law of Markets, and the classical theory of employment,
highlighting its assumptions, mechanisms, and limitations.
Unemployment: Concept and Types
Concept of Unemployment
Unemployment occurs when individuals who are able and willing to work at the prevailing wage rate are unable to find suitable jobs.
It is a pressing issue in both developed and developing economies, often leading to poverty, inequality, crime, and social unrest.
Unemployment can be classified as:
- Voluntary unemployment: When individuals choose not to work due to personal preferences, laziness, or lack of interest.
- Involuntary unemployment: When individuals are willing to work at the existing wage rate but cannot find employment.
Types of Unemployment
- Open Unemployment: Workers have no employment opportunities despite willingness to work at current wages.
- Underemployment: Individuals are employed but perform tasks below their skills and potential.
- Disguised (Hidden) Unemployment: People appear employed but contribute little or nothing to output.
- Cyclical Unemployment: Arises from business cycle fluctuations, where declining economic activity reduces production and employment.
- Seasonal Unemployment: Occurs when jobs are tied to specific seasons, e.g., agriculture or tourism.
- Frictional Unemployment: Temporary unemployment during job search or transition.
- Structural Unemployment: Mismatch between worker skills and available jobs due to technological changes.
- Educated Unemployment: Highly educated individuals cannot find jobs matching their qualifications.
Say’s Law of Market
Concept
J.B. Say, a 19th-century French economist, formulated Say’s Law, a cornerstone of classical economics, which asserts:
“Supply creates its own demand.”
Production generates equivalent demand because the income earned by factors of production is spent on goods and services.
Say’s law implies that general overproduction and general unemployment cannot occur in a self-regulating economy.
Assumptions of Say’s Law
- Free-market economy with no government intervention
- Closed economy (no international trade)
- Flexible market size and prices
- Money serves only as a medium of exchange
- Perfect competition in both product and factor markets
- Rational behavior motivated by self-interest
- No leakage in the circular flow of income
- Flexible wages and prices
- Savings are always invested
Circular Flow Representation: Households supply factors of production to businesses and receive income in return. Businesses produce goods and services, which are purchased by households, maintaining full employment and avoiding overproduction.
Implications
- Self-adjusting economy: Supply and demand balance automatically.
- No general overproduction: Increased production generates sufficient income and demand.
- No general unemployment: Temporary unemployment corrects itself.
- Flexible wages ensure full employment.
- Policy implication: Minimal government intervention is required.
Criticisms
- Supply does not always create demand: Savings may not translate into investment.
- Money is demanded for multiple purposes, not just as a medium of exchange.
- Economy may not self-adjust due to income inequality and insufficient demand.
- Government intervention may be necessary to stabilize employment and demand.
Classical Theory of Employment
Supported by economists like J.S. Mill, Alfred Marshall, and Pigou, the classical theory assumes full employment as normal under perfect competition.
Unemployment is temporary and self-correcting. Government intervention and monopolies disrupt market adjustments.
Assumptions
- Rational behavior guided by self-interest
- Perfect competition in product and factor markets
- No money illusion
- Laissez-faire economic environment
- Closed economy with stable production techniques
- Money only as a medium of exchange
- Flexible wages and prices
- Homogeneous labor
- Full employment exists naturally
Components
Labour Market
Full employment is achieved through flexible wages. Wages adjust to balance labor supply and demand. Government interference or rigid wage structures can create unemployment.
Production Function
Output depends on labor (N) and technology. The classical theory assumes the law of diminishing returns. At full employment (ON), the output level is OY.
Product Market
Total output = Consumer goods (C) + Investment goods (I)
Total income = Consumption (C) + Saving (S)
Full employment condition: S = I
Interest rate flexibility ensures saving and investment equality, maintaining market equilibrium.
Money Market
Classical economists follow the Quantity Theory of Money (MV = PY). Full employment output (Y) and velocity of money (V) are constant. Price level (P) adjusts with money supply (M).
Criticisms
- Underemployment equilibrium is common; full employment is not guaranteed.
- Supply does not always create its own demand.
- No automatic adjustment due to rigid wages, liquidity preference, and inelastic investment.
- Government intervention is necessary to stabilize demand.
- Money functions as a store of value, not just a medium of exchange.
- Saving-investment equality depends on income, not interest rate.
- Focus on long-run neglects short-term unemployment and business cycles.
- Assumption of perfect competition is unrealistic.
- Not a general theory; deals only with full employment.
- Limited practical relevance for solving real-world unemployment and economic fluctuations.
Conclusion
While logically consistent, the classical theory has limited practical applicability. It does not address short-term unemployment or business cycles.
As D. Dillard remarked, “The great fault of classical economics is its irrelevance to conditions in contemporary capitalistic world.”
Thus, it is foundational but largely superseded by Keynesian analysis in practical policy-making.