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Neoclassical Economics: Meaning, Theory and Criticism

What is Neoclassical Economics?

Neoclassical Economics is a theory concerning rational behaviour, utility improvement, and the role of markets in resource allocation that emerged in the late 1800s. It suggests that people act to increase their pleasure, businesses act to maximise profits, and market systems correct themselves to find a balance. It is closely related to marginal utility, demand and supply, and rational choice theories.

Key Takeaways:



  • According to the neoclassical economic model, people make decisions about consumption, manufacturing, and capital allocation based on the rational assumption that their actions would maximise their enjoyment.
  • Because the balance between supply and demand establishes equilibrium prices and quantities, neoclassical theory states that the process of allocating production capacity in competitive markets is always effective.
  • In their research on decision-making processes, neoclassical economists apply marginal analysis, wherein slight variations in output or consumption are expressed as additional expenses or benefits at specific moments in time.

History of Neoclassical Economics

Neoclassical Economics emerged in the late 19th century and can be understood as a development of the liberal economic theories of thinkers like Adam Smith, David Ricardo, and John Stuart Mill. While neoclassical economists have focused on both individual behaviour and market transactions, classical economists placed a strong emphasis on production and distribution in shaping economic results.



Neoclassical Economics is said to have its roots in the Marginalist Revolution, which was led by William Stanley Jevons, Carl Menger, and Leon Walras. They claimed that rather than the labour theory of value found in traditional economics, the value of commodities and services is determined by their marginal utility, which is the satisfaction one gets from consuming an extra unit.

Renowned neoclassical economist Alfred Marshall expanded on these ideas in his seminal work “Principles of Economics.” He added equilibrium pricing, elasticity, and the supply-demand relationship to the study of the modern microeconomy.

In the late 19th and early 20th centuries, as industrialization and capitalism were beginning to take hold, neoclassical economics gained immense popularity. Then, as they seemed to make the most sense at the time, rational behaviour, competitive markets, and efficiency emerged.

Nevertheless, throughout the 20th century, neoclassicism faced several difficulties and critiques. The 1930s Great Depression saw the emergence of Keynesian economics, which placed a strong emphasis on the role that government play in preserving economic stability. Additionally, behavioural economics exposed the flaws in human decision-making and questioned the neoclassical assumptions of perfect competition and rationality.

Despite these criticisms, neoclassical economics managed to maintain its position within mainstream economics, where it also influenced research, teaching, and policy making. Though institutions and evolution theories, among others, have contributed to its principles, a large portion of contemporary economic analysis is still based on them.

Evolution of Neoclassical Economics

Over time, neoclassical economics has continued to be improved and adjusted to a variety of issues and advancements in the profession. So, the following is a brief description:

1. Early Neoclassical Economics (late 19th to early 20th century):

Neoclassical Economics emerged as a response to the classical school of thinking, emphasising marginalism, subjective utility, and the role that individual behaviour plays in influencing economic outcomes. During this time, individuals like Carl Menger, Alfred Marshall, and William Stanley Jevons set the groundwork for neoclassical theory.

2. Marginalist Revolution:

The concept of marginal utility, which defies the labour theory of value and offers a new paradigm for comprehending how consumers behave in the market and deciding market clearing prices and amounts, was proposed by Jevons, Menger, and Walras under the leadership of the Marginalist Revolution. The revolution signalled the official beginning of the study of neoclassical economics.

3. Marshallian Synthesis:

The concepts of previous neoclassical economists were synthesised and enlarged by Alfred Marshall, particularly in his work “Principles of Economics” (1890). Marshall is credited with introducing the ideas of equilibrium price, elasticity, and supply and demand, which have since become fundamental concepts in microeconomic analysis.

4. Perfect Competition and Welfare Economics:

Welfare Economics, which evaluates how economic policies affect social welfare and efficiency, emerged as a result of neoclassical economists’ realistic models for perfect competition, in which businesses were price takers and markets efficiently distributed resources.

5. Keynesian Revolution:

The 1930s Great Depression forced many to question the fundamental tenets of neoclassical economics, which in turn gave rise to the alternative school of thought known as Keynesian Economics. In opposition to neo-classical views that hold that markets are self-correcting entities, John Maynard Keynes argued for government intervention to regulate and control the economy during times of economic crisis.

6. Neoclassical Synthesis:

The neoclassical synthesis was developed in the middle of the 20th century and for a while dominated mainstream economic theory. By highlighting the need for both market forces and government action in economic policies, it combined neoclassical microeconomic principles with Keynesian macroeconomic theory.

7. New Classical Economics:

In the 1970s and 1980s, Robert Lucas and Thomas Sargent, two up-and-coming classical economists, grew sceptical of Keynesian orthodoxy while also reinstating in macroeconomic theory and policy the importance of rational expectations and market efficiency, which dates back to Adam Smith’s time, when he published his “Wealth of Nations” in 1776, during the late stages of enlightenment and the birth of capitalism.

8. New Neoclassical Synthesis:

A new neoclassical synthesis has resulted from the current tendency to incorporate concepts from game theory, behavioural economics, and other fields into neoclassical models. This attempts to stay faithful to the fundamental ideas of neoclassical economics while incorporating market dynamics and human behaviour with a hint of realism.

Neoclassical Economic Theory

Neoclassical Economic Theory provides a viewpoint that demystifies market mechanisms, individual behaviour, and resource allocation. Despite criticism and hostility, it is nevertheless an essential tool for economic research and policy formation, particularly when it comes to the ideals of perfect competition and rationality. The following are some of the fundamental ideas of neoclassical economic theory:

1. Rational Behavior: According to neoclassical economics, people are rational agents who want to maximise their utility within the bounds of their resources, or, to put it another way, satisfaction. This historical context informs many applied economic studies in which individuals are portrayed as agents making decisions based on what will best satisfy them.

2. Utility Maximization: The neoclassical idea states that individuals who prioritise utility spend their time and money in ways that will provide them the most satisfaction. This maximum satisfaction is based only on an individual’s likes or preferences, hence it is subjective and varies from person to person.

3. Marginalism: Neoclassical Economics use the idea of marginalism to argue that choices are made at the margins. People weigh minor adjustments or additions in terms of cost (or usefulness) at the margin when weighing their options. Consumers employ a crucial notion called marginal utility to explain their decisions about how much of this or that they should buy or sell.

4. Supply and Demand: Neoclassical economics relies heavily on the interaction of supply and demand in determining prices and quantities in markets. The equilibrium price and quantity in a competitive market are determined by the intersection of the demand curve (showing the quantity of a good consumers are willing to buy at different prices) and the supply curve (showing the quantity of a good producers are willing to sell at different prices).

5. Perfect Competition: According to its presumptions, neoclassical theory frequently asserts that perfect competition occurs in marketplaces with a large number of vendors and buyers, homogeneous products, perfect knowledge, and freedom of entry and exit. When an industry exhibits these characteristics, it is considered to be functioning in a perfect competitive environment. As no single company has any influence over another’s pricing; in this situation, all businesses behave as though they do not exist, hence allowing for allocation.

6. Equilibrium: Economists who follow neoclassicism study markets in equilibrium. Because the amount provided and quantity wanted are equal in equilibrium, there is no tendency for prices or quantities to vary. This illustrates a state of equilibrium where businesses work hard to maximise profits, often at the price of the welfare of customers, while consumers work hard to maximise their utility and get the most out of what they spend for goods.

7. Efficiency: Neoclassical Economics emphasizes two aspects of effectiveness: the first is allocative efficiency or the allocation of resources to their most valued uses; the second is productive efficiency, or the production of goods and services at the lowest possible cost. It is believed that competitive markets can ultimately achieve both forms of efficiency.

Criticisms of Neoclassical Economics

1. Assumptions of Rationality:

Critics contend that the presumption of perfect rationality; i.e., the idea that people always choose what is best for themselves is incompatible with the ways that people behave. For example, behavioural economists’ observations of irrationalities and foreseeable errors are ignored by neoclassical economics when making judgements.

2. Perfect Competition Assumption:

Neoclassical Economics frequently uses scenarios of markets with numerous small enterprises providing comparable items under the perfect competition assumption. However, critics argue that this kind of assumption is invalid in several real-world market scenarios, such as those in which businesses use their market power, information is scarce, and entry obstacles exist.

3. Equilibrium Focus:

Classical Cconomics places a great deal of focus on equilibrium analysis because it assumes that markets naturally gravitate towards equilibrium states. The problem with this is that it fails to acknowledge the reality that real markets are dynamic, often exhibiting non-linear dynamics and disequilibrium.

4. Distributional Issues:

Neoclassical Economics focuses primarily on efficiency and aggregate outcomes, due to which distributional issues are typically disregarded. Critics counter that this kind of approach might lead to unjust outcomes and a widening of the wealth divide.

5. Neglect of Institutional Factors:

Institutional elements that can significantly affect economic outcomes, such as power dynamics, social norms, and legal frameworks, are typically ignored in neoclassical economics. According to institutional economics, institutions have a significant impact on how people behave and achieve economic goals.

6. Environmental Concerns:

Critics of this approach argue that it disregards sustainability and environmental preservation. They contend that because neoclassical economic theory places a higher priority on profit-making and utility maximisation than it does on long-term effects on the economy, it encourages people to overuse natural resources and harm the environment.

7. Inadequate Treatment of Uncertainty:

Neoclassical Economics assumes that firms and individuals are fully aware of future developments. However, the truth is that uncertainty is commonplace and that those in charge of making decisions routinely deal with incomplete or erroneous information. This criticism suggests that neoclassical models may not fully represent the complexities of acting in an uncertain environment.

Difference between Neoclassical Economics and Classical Economics

Basis

Neoclassical Economics

Classical Economics

Meaning

Neoclassical Economics is a theory that first appeared in the late 19th century and places a strong emphasis on markets’ ability to allocate resources effectively, rational behaviour, and utility maximisation.

Classical Economics is a theory which uses labour, capital, and land as key components to examine how production, distribution, and trade shape economic results.

Period

Late 19th century onwards.

Late 18th to early 19th century.

Focus

It focuses on individual behaviour, markets, utility maximization.

It focuses on production, distribution, exchange, factors of production.

Key Concept

Marginal utility, perfect competition, rational behaviour.

Labour theory of value, surplus value, capital accumulation.

Market Structure

It emphasizes on perfect competition, supply and demand.

It gives less emphasis on market structure and focus on labour market.

Role of Government

Less interference and a focus on laissez-faire principles.

Restricted position with an emphasis on safeguarding property rights.

Distribution

Efficiency is the main focus while distribution is less important.

Concerns about how wealth and income are distributed.

Innovation

It promotes innovation and technological advancement.

Economic growth is thought to be driven by innovation.

Influence on Policy

Supporters of privatisation, deregulation, and free markets.

Varying degrees of influence and support for governmental action.

Neoclassical Economics – FAQs

How is the distribution of income analysed by neoclassical economists?

Efficiency is typically prioritised over income distribution in neoclassical economics.

In neoclassical economics, what is meant by “market failure”?

Market failure is the inability of markets to allocate resources effectively, frequently as a result of public goods, imperfect competition, or externalities.

How are consumer behaviour patterns analysed by neoclassical economists?

Neoclassical economics look at how people divide their income to get the most utility out of it while analysing consumer behaviour.

What part do enterprises play in the theory of neoclassical economics?

In neoclassical economics, businesses create products and services that meet customer demand in an effort to maximise profits.

What does the neoclassical economist mean by equilibrium?

According to neoclassical economists, market equilibrium is reached when supply and demand are equal, setting the equilibrium price and quantity.


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