---
title: "Conflict of interest"
chunk: 1/10
source: "https://en.wikipedia.org/wiki/Conflict_of_interest"
category: "reference"
tags: "science, encyclopedia"
date_saved: "2026-05-05T04:27:55.281412+00:00"
instance: "kb-cron"
---

A conflict of interest (COI) is a situation in which a person or organization is involved in multiple interests, financial or otherwise, and serving one interest could involve working against another. Typically, this relates to situations in which the personal interest of an individual or organization might adversely affect a duty owed to make decisions for the benefit of a third party.
An "interest" is a commitment, obligation, duty or goal associated with a specific social role or practice. By definition, a "conflict of interest" occurs if, within a particular decision-making context, an individual is subject to two coexisting interests that are in direct conflict with each other ("competing interests"). This is important because under these circumstances, the decision-making process can be disrupted or compromised, affecting the integrity or reliability of the outcomes.
Typically, a conflict of interest arises when an individual occupies two social roles simultaneously, generating opposing benefits or loyalties. The interests involved can be pecuniary or non-pecuniary. The existence of such conflicts is an objective fact, not a state of mind, and does not in itself indicate any lapse or moral error. However, especially where a decision is being taken in a fiduciary context, it is important that the contending interests are clearly identified and the process for separating them is rigorously established. Typically, this will involve the conflicted individual either giving up one of the conflicting roles or recusing themselves from the particular decision-making process.
The presence of a conflict of interest is independent of the occurrence of inappropriateness. Therefore, a conflict of interest can be discovered and voluntarily defused before any corruption occurs. A conflict of interest exists if the circumstances are reasonably believed (based on past experience and objective evidence) to create a risk that a decision may be unduly influenced by other, secondary interests, and not on whether a particular individual is actually influenced by a secondary interest.
A widely used definition is: "A conflict of interest is a set of circumstances that creates a risk that professional judgement or actions regarding a primary interest will be unduly influenced by a secondary interest." Primary interest refers to the principal goals of the profession or activity, such as the protection of clients, the health of patients, the integrity of research, and the duties of public officers. Secondary interest includes personal benefit and is not limited to only financial gain but also such motives as the desire for professional advancement, or the wish to do favors for family and friends. These secondary interests are not treated as wrong in and of themselves, but become objectionable when they are believed to have greater weight than the primary interests. Conflict of interest rules in the public sphere mainly focus on financial relationships since they are relatively more objective, fungible, and quantifiable, and usually involve the political, legal, and medical fields.

A conflict of interest is a set of conditions in which professional judgment concerning a primary interest (such as a patient's welfare or the validity of research) tends to be unduly influenced by a secondary interest (such as financial gain). Conflict-of-interest rules [...] regulate the disclosure and avoidance of these conditions.

== In the practice of law ==

Conflicts of interest have been described as the most pervasive issue facing modern lawyers. Legal conflicts rules are at their core corollaries to a lawyer's two basic fiduciary duties: (1) the duty of loyalty and (2) the duty to preserve client confidences. The lawyer's duty of loyalty is fundamental to the attorney-client relationship and has developed from the biblical maxim that no person can serve more than one master. Just as fundamental is the lawyer's duty to maintain client confidences, which protects clients' legitimate expectations that they can make full disclosure of all facts to their attorneys without fear of exposure.
The basic formulation of the conflicts of interest rule is that a conflict exists "if there is a substantial risk that the lawyer's representation of the client would be materially and adversely affected by the lawyer's own interests or by the lawyer's duties to another current client, a former client, or a third person." The duty of loyalty requires an attorney not to act directly adverse to an existing client, even on an unrelated matter where the lawyer has no client confidences. Such a loyalty conflict has been labeled a concurrent conflict of interest. The duty of confidentiality is protected in rules prohibiting so-called successive conflicts of interest, when a lawyer proposes to act adversely to the interests of a former client. A lawyer who has formerly represented a client in a matter is precluded from representing another person in the same or a substantially related matter that is materially adverse to the former client. These two basic formulations – that a lawyer may not act directly adverse to a current client or adverse to a former client on a substantially related matter – form the cornerstone of modern legal conflicts of interest rules.

=== Concurrent conflicts of interest ===