Adam Smith#
Adam Smith (1723–1790) was a Scottish philosopher and political economist, widely regarded as one of the central figures of the Scottish Enlightenment. Although he is best known today as the “father of economics” for his work on markets and capitalism, Smith considered himself first and foremost a moral philosopher. His ethical theory laid the foundation for his later economic ideas and remains influential in moral, political, and social philosophy.
Adam Smith’s primary works on ethics are:
The Theory of Moral Sentiments (1759): This book is Smith’s main ethical treatise and went through six editions during his lifetime. It explores the nature of moral judgment, sympathy, virtue, and social order.
An Inquiry into the Nature and Causes of the Wealth of Nations (1776): While focused on economics, this work presupposes the moral framework developed in The Theory of Moral Sentiments, particularly ideas about self-interest, justice, and social cooperation.
Merchants#
According to Adam Smith, the primary role of a merchant is to trade. By connecting resources with those who need them, merchants not only enrich themselves but also contribute, often unintentionally, to the welfare of society. Through commerce, new activities and new forms of well-being emerge, improving the quality of life more broadly. Although Smith does not require benevolent intentions from merchants, he shows how their pursuit of private interest can generate public benefit under appropriate moral and institutional conditions.
Smith recognises self-interest as a powerful motivator of commercial activity. At the same time, he maintains that the pursuit of profit is constrained by moral judgment and social approval. While Smith does not frame this explicitly as a virtue ethic, his account invites an Aristotelian reading: commendable commercial conduct lies between the extremes of unrestrained greed and total self-denial for the sake of others. Merchants are thus implicitly encouraged to exercise moderation in their pursuit of gain.
Smith argues that merchants seek profit within the bounds of what society considers fair and proportional. Approval depends on whether gains are perceived as reasonable relative to risk, effort, and contribution. Moderate profits secured through fair dealing tend to sustain a merchant’s reputation over time. By contrast, excessive or predatory gains invite resentment and often provoke social or political responses that ultimately restrict the merchant’s freedom to trade. According to Smith, these outcomes are predictable social consequences of overreaching self-interest.
To sustain a shared perception of fairness, Smith’s moral framework implies that merchants must cultivate an understanding of value and risk, both for themselves and for those with whom they trade. Although Smith does not explicitly assign merchants a pedagogical role, his emphasis on sympathy, transparency, and informed judgment implies a practical discipline: merchants must learn to assess prices, terms, risks and how these factors are likely to be understood by their trading partners, and to communicate these elements openly so that agreement rests on shared comprehension. Merchants who communicate openly reduce friction in transactions and attract durable trading relationships. Conversely, deception undermines sympathy and corrodes the basis of cooperation. Once trust is lost, customers either withdraw or insist on costly safeguards, making exchange more difficult for all parties.
Smith acknowledges that judgments of fairness are easily distorted by self-interest. To counter this tendency, he introduces a method of moral self-assessment. Merchants are encouraged to imagine themselves as “impartial spectators” observing their own conduct from a detached standpoint. If a transaction appears acceptable from this perspective, it is likely to be just. This exercise does not guarantee moral correctness, but it provides a practical discipline for restraining biased judgment in commercial life.
Taken together, Smith’s account encourages merchants to value long-term reputation over short-term profit, even under the pressure of competition. This priority emerges from Smith’s analysis of how moral sentiments, social approval, and self-interest interact over time.
Commerce and law#
As a thinker of the Enlightenment, Smith places justice at the foundation of social order and argues that it must never be violated in the pursuit of profit. Commerce depends on trust, contracts, and stable expectations. Acts of injustice, such as fraud, coercion, or breach of contract, destroy trust and generate resentment. The resulting distrust, punishment, or retaliation increases the burdens of future exchange and undermines the merchant’s capacity to trade. The long-term effect is a deterioration of outcomes for both the merchant and society as a whole.
Smith also warns that when merchants hold political power, they should refrain from using public office to advance their private commercial interests. Such abuses provoke public resentment and weaken the legitimacy of both markets and political institutions. Even from the merchant’s own perspective, the erosion of public trust ultimately compromises the conditions necessary for sustained commerce.
Finally, Smith is strongly critical of collusion and monopoly formation among merchants. He argues that when merchants conspire to limit competition, they keep markets artificially understocked and raise prices above their natural level, enriching a few at the direct expense of the many. Such practices provoke public resentment, as consumers recognise that they are being made to pay more not because of scarcity or risk, but because competition has been suppressed. Smith further warns that monopolies are rarely sustained without the aid of political privilege, and that merchants often seek to bend laws and regulations to secure exclusive advantages, thereby corrupting legislation and undermining justice. Beyond these social and political harms, monopoly dulls the discipline of competition that ordinarily promotes diligence, innovation, and efficiency. Shielded from rivals, merchants become complacent, neglect improvement, and supply inferior goods. Over time, these practices harm even the monopolists themselves by eroding their capacity to innovate, adapt, and compete once protective barriers weaken or disappear.
Adam Smith’s ethical guidelines#
Respect justice: Refuse transactions that require deception, coercion, or concealment of material facts. Ensure contracts are understandable to all parties, not just legally defensible. Treat suppliers, customers, and employees according to the same standards you would accept for yourself. Exit markets or practices that depend on systematic harm, even if they are legal.
Discipline self-interest: Before major decisions, ask: “Would a fair outsider approve of this profit?” Create personal or organizational rules that restrict opportunistic behavior. Accept reduced margins rather than compromise moral standards.
Avoid monopoly and collusion: Decline informal agreements with competitors on prices, territories, or output. Support industry standards that increase transparency. Speak against collusive practices within professional associations.
Commit to truthfulness and transparency: Represent product quality, origin, and limitations accurately. Disclose relevant risks, fees, and terms clearly and early. Train staff to prioritize honesty over sales targets. Correct errors publicly and promptly when misinformation occurs.
Resist political manipulation: Avoid lobbying for regulations that protect you from competition. Do not seek subsidies, tariffs, or privileges that burden consumers or rivals. Separate business advocacy from public-interest claims unless they align genuinely. Support fair, general rules rather than industry-specific advantages.
Prioritize long-term reputation over short-term gain: Evaluate decisions by their impact on trust over years. Build relationships based on reliability and fairness. Reward employees for ethical behavior, not just financial performance.
Consider social consequences of commercial actions: Assess how pricing, sourcing, or automation affects communities and workers. Adjust practices when unintended harm becomes evident. Recognize moral responsibility for large-scale effects.
Internalize moral judgment: Regularly review decisions from the perspective of customers, employees, and the public. Encourage dissent and ethical questioning. Conduct ethical audits alongside financial ones.