What’s homo economicus?
Some economists use the term “homo economicus” to refer to a rational human being. Some neoclassical economic theories represent humans as ideal decision-makers with perfect rationality, knowledge, and consistent, self-interested aims.
Understanding Homo Economicus
An economic man is a symbolic person with limitless logical decision-making abilities. Some economic models assume humans are rational and will maximize their utility for monetary and non-monetary rewards.
Modern behavioral economists and neuroeconomics have shown that humans make irrational decisions. They believe a “more human” subject (that makes predicted illogical judgments) will better represent human behavior.
Human Economicus Origins
According to John Stuart Mill, an English civil servant, philosopher, and political economist, homo economicus originated in his 1836 treatise on political economics. The essay “On the Definition of Political Economy and the Method of Investigation Proper to It” assigned characteristics to themes for the new area.
Mill’s topic is a “being who desires to possess wealth and who is capable of judging the comparative efficacy of means for obtaining that end.” According to the speaker, political economy ignores human reasons beyond those that aid in achieving riches.
The being wants offspring and luxury. Mill says the economic man’s likes and propensities are transgenerational. According to Mill, a parent who likes luxury may also have children who like it.
Qualities of Homo Economicus
The main attribute of homo economicus is profit maximization. Much more crucially, they can always make judgments that help them achieve their goal efficiently. When they’re consumers, homo economicus wants to maximize utility; when they’re producers, they profit.
Besides profit maximization, homo economicus has additional features. These include complete reason, boundless cognitive ability, perfect information, narrow self-interest, and preference consistency.
Homo economicus makes logical, bias-free decisions. The homo economicus can process any amount of information, regardless of quantity, quality, or complexity, due to its boundless cognitive ability. Additionally, the homo economicus has access to all essential decision-making information.
Homo economicus cares about oneself. In conclusion, homo economicus’ tastes and purposes remain unchanged.
Human Economics Today
The homo economicus underpins neoclassical economics, especially microeconomics. Neoclassical economics assumes rational decisions, utility maximization, and self-interest.
This assumes that individuals are conscious of making self-interested decisions, that they have relevant and complete information to make a rational calculation that maximizes utility, and that companies and individuals aim to maximize profits and utility.
Companies do this by recruiting more people until production equals hiring costs. To maximize utility, consumers pay for products and services until the cost equals the enjoyment from an extra unit.
Homo Economicus Limitations
History and economic crises have shown that the economic man’s idea is faulty. In 1979, Nobel Prize-winning psychologist Daniel Kahneman and specialist in judgment and decision-making Amos Tversky established behavioral economics with their publication, “Prospect Theory: An Analysis of Decision under Risk.”
Kahneman and Tversky found that people’s risk aversion differs for earnings and losses. Risk aversion challenges homo economicus and the concept that humans act rationally. People prefer $1,000 over a 50% probability of earning $2,500, according to Kahneman and Tversky.
Other Human Decision-Making Models
Previous critiques of the homo economicus model have led to the development of other theories of human decision-making. Here are some:
Homo reciprocans: Individuals that reward positive deeds and penalize negative ones.
A homopoliticus is a person who behaves according to what is best for society.
Homo sociologicus is a person who tries to fulfill their function while under the influence of society and may not always act rationally.
Remember that these models aren’t exclusive. A person may act like a homo reciprocans in one context and a homo politicus in another.
Homo Economicus Example
Businesspeople are the most common homo economicus example.
Businesspeople want profits from every transaction and decision. For maximum production, they may automate activities and lay off staff. They may also eliminate non-profitable company units to focus on profitable ones.
A 2007 essay in The New York Review of Books titled “Who Was Milton Friedman?” Paul Krugman stated that the notion of Homo economicus has dominated economic theory for most of the last two centuries. It’s simple to mock this narrative. Even Nobel-winning economists don’t make such judgments. Although Economic Man is a romantic portrayal of what we think is happening, most economists—including me—use him.”
Homo economicus behaves rationally in various areas of life. The hypothesis fails to explain certain illogical decisions. Reason suggests that reasonable businesspeople live austere lives with their profits. That’s not always true. The presence of expensive products and generosity contradicts this notion.
Homo Economicus FAQs
How Does Homo Economicus Compare to Adam Smith?
John Stuart Mill proposed the homo economicus in a 19th-century political economy treatise. Mill’s thesis expanded on Adam Smith and David Ricardo’s view of humans as self-interested economic actors.
Smith attributed human motivation to economic self-interest and pleasure maximization. He regarded humans as sensible and self-interested in money.
Where Does Homo Economicus Fit into Instrumental Rationality?
Instrumental rationality seeks the most efficient solution. Value rationality identifies only proper or valid purposes, unlike instrumental rationality. Max Weber initially identified these two abilities. Some portray homo economicus as intelligent yet immoral. Homo economicus behaves instrumentally and rationally.
Does behavioral economics include home economics?
Behaviorist economics undermines the homo economicus narrative. Behavioral economics studies how psychology impacts economic decisions. Behavioral economics says people are irrational.
People don’t always maximize advantages, minimize expenses, or are self-interested. We often make decisions with little knowledge and processing and lack self-control to avoid self-interested conduct. In addition, our choices alter depending on the decision-making circumstance. This makes the homo economicus theoretical abstraction incompatible with several behavioral economic principles.
Conclusion
- Some economists call rational humans homo economicus.
- Some neoclassical economic theories represent humans as ideal decision-makers with perfect rationality, knowledge, and consistent, self-interested aims.
- Modern behavioral economists and neuroeconomics have shown that humans make irrational decisions.
- The homo economicus originated in an 1836 political economics article by English civil servant, philosopher, and political economist John Stuart Mill.
- Reasonable businesspeople should utilize their gains to live frugally, but they don’t always.

