Why do people feel that something is “theirs”? Even when something is not legally owned by them, people can feel a strong sense of ownership toward a space, object, idea, organization, task, or relationship. Conversely, something may legally belong to a person, yet emotionally feel nothing like “mine.” Pierce, Kostova, and Dirks’ paper, The State of Psychological Ownership, is a foundational work that organizes the theoretical structure of this subtle but powerful feeling: psychological ownership.
The paper defines psychological ownership as a state in which individuals feel as though a target, or part of a target, is theirs. The core expression is simple: “It is mine!” What matters here is that ownership does not refer only to legal rights. Ownership does not exist only in contracts, registries, or receipts. It also exists in the mind. People form cognitive and emotional states of ownership toward things they have created, cared for, spent time with, controlled, and endowed with meaning.
The authors focus not on the legal dimension of ownership, but on its psychological dimension. Legal ownership is a right recognized by society and institutions. Psychological ownership, by contrast, is a subjective state experienced by the individual. For this reason, psychological ownership can emerge even without legal ownership. An employee may feel that a company is “our company” even without owning shares. A researcher may feel strong ownership over an idea. A user may experience a digital space or avatar used over many years as part of the self.
The importance of this paper lies in how it systematizes the origins of psychological ownership around three human motives. The authors locate the roots of psychological ownership in efficacy and effectance, self-identity, and the need for a place to dwell.
First, people want to feel that they can influence their environment. When individuals can control, manipulate, and produce desired outcomes through a target, they are more likely to feel ownership toward it. This is connected to efficacy. When someone can skillfully use a tool, reshape a space according to their preferences, or determine the direction of a project, that target gradually begins to feel like part of the self.
Second, ownership is tied to self-identity. People use objects and targets to explain who they are. Clothes, homes, cars, books, research topics, jobs, artworks, and online profiles are not merely objects or information. They become symbols of the self. Certain targets serve as markers of who we are, preserve memories of the past, and connect our identity across time.
Third, people desire a place of their own. The paper interprets the idea of “home” not simply as a physical space, but as a psychological shelter. People need places where they can stay, feel familiar, and experience safety. Such places do not have to be houses or land. Organizations, communities, languages, jobs, online communities, and virtual spaces can also be experienced as places where one belongs. Psychological ownership is therefore connected to the human desire to secure one’s place in the world.
The authors also identify three routes through which psychological ownership develops. The first is control over the target. People are more likely to incorporate into the self the things they can control. When they can freely use an object, decide the direction of a project, or decorate a space according to their preferences, psychological ownership increases.
The second route is intimate knowledge of the target. Things that are known deeply, experienced closely, and understood in detail gradually become “mine.” Just as a gardener may come to feel that a garden is part of the self after caring for it over time, people become psychologically close to targets through repeated interaction. The more they know, encounter, and experience a target, the stronger their sense of ownership becomes.
The third route is self-investment. When people invest time, effort, emotion, values, and creativity into a target, that target becomes linked to the self. A work one has created, an organization one has built, a project one has designed, and a sentence one has written do not easily become someone else’s. They are not merely outcomes. They are objects into which the self has been projected.
These three routes operate independently, but they can also accumulate. A person may feel ownership simply through control, or through long-term familiarity alone. But psychological ownership becomes much stronger when one controls, knows deeply, and invests the self in a target. This helps explain why founders struggle to let go of their companies, why researchers become attached to their theories, and why writers react sensitively to their own sentences.
The paper emphasizes the positive effects of psychological ownership. When people feel that something is theirs, their sense of responsibility increases. Employees who feel that an organization is theirs are more likely to contribute actively. Citizens who feel that a community is theirs are more likely to participate voluntarily. Psychological ownership can lead to citizenship behavior, protective behavior, sacrifice, responsibility, and stewardship. Even without legal obligation, people tend to care for and defend what they feel they own.
This point is particularly important in organizational research. When employees feel psychological ownership toward their company, their relationship with the organization goes beyond wage-based employment. They are more likely to see the organization’s problems as their own, experience its achievements as personal accomplishments, and respond more actively to its crises. This also explains why companies give employees autonomy and opportunities for participation. The more an organization allows people to control, understand, and invest themselves in it, the more likely they are to feel, “This is my organization.”
But psychological ownership also has a darker side. As ownership becomes stronger, people may become unwilling to share the target, resist change, and perceive others’ involvement as a threat. A person may struggle to tolerate someone else modifying a project they created, or may interpret organizational change as damage to their own identity. Psychological ownership can be a source of responsibility, but it can also become a source of exclusiveness, attachment, defensiveness, and resistance to change.
One strength of the paper is that it does not treat psychological ownership merely as a positive organizational attitude. The authors argue that ownership can produce citizenship behavior and responsibility, but they also analyze how it can generate possessiveness, stress, frustration, deviant behavior, and resistance to change. When something a person feels is “mine” is forcibly changed or removed, the experience may feel not like a simple loss, but like damage to a part of the self.
This has important implications for organizational change. If employees feel strong psychological ownership toward a system, task, space, or project, change is not simply a procedural adjustment. It may be perceived as a threat to identity and control. For organizational change to succeed, leaders must not ignore members’ sense of ownership. Rather than imposing change unilaterally, they must design processes that allow members to participate and invest themselves in the transition.
The paper also discusses cultural differences. Psychological ownership may be a universal phenomenon, but the way it appears can differ across cultures. In individualistic cultures, the personal sense of “mine” may be more prominent. In collectivistic cultures, the collective sense of “ours” may matter more. Psychological ownership is therefore not merely an internal state of the individual. It is a social psychological phenomenon shaped by culture, institutions, and organizational structures.
This point has become even more important in the digital age. Today, people feel ownership not only toward physical objects, but also toward accounts, avatars, online communities, digital content, game items, NFTs, and works co-created with AI. Regardless of who legally owns something, a digital object into which a user has invested time, emotion, and identity can become psychologically “mine.” Although the paper was published in 2003, it may be even more explanatory today, as digital assets and virtual worlds have expanded.
For example, when users decorate avatars, build virtual spaces, and form community relationships in the metaverse, those spaces become more than services. They become “my place.” When a gamer develops a character over many years, that character becomes more than data. It becomes the result of self-investment. The same logic applies when creators feel a sense of self-attribution toward text or images produced together with AI. Because they controlled the process, understood the work, and invested themselves in it, psychological ownership emerges.
The paper also has clear limitations. It is a conceptual article focused more on theoretical integration than empirical verification. Further research is needed on measurement tools for psychological ownership, causal relationships among variables, cultural differences, and effects across organizational contexts. It is also important to note that the paper is largely grounded in literature from Western individualist traditions. In today’s world of platform economies, data ownership, AI-generated works, and virtual assets, the relationships among legal ownership, usage rights, access rights, and psychological ownership must be analyzed more precisely.
Even so, the theoretical value of the paper remains substantial. Psychological ownership is a key concept that can connect organizational behavior, consumer behavior, digital assets, metaverse research, and AI co-creation studies. In digital environments, psychological ownership may explain user behavior more powerfully than legal ownership. A user may legally own nothing under a platform’s terms of service, yet still feel strong ownership toward accumulated records, relationships, and creations. This gap can become the starting point of conflict.
There are also important implications for platform companies. If platforms want users to feel psychological ownership, simply providing functions is not enough. Users must be able to control, know, and invest themselves in the service. Conversely, when a platform unilaterally changes its rules, deletes user data, or restructures a community, users may experience not mere inconvenience, but the feeling that “something of mine has been taken away.”
Ultimately, the central message of Pierce, Kostova, and Dirks’ paper is clear. Ownership is not only the language of law. It is also the language of psychology. People feel that something is “mine” when they can control it, know it deeply, and invest themselves in it. That feeling can produce responsibility and commitment, but it can also produce attachment and resistance.
In the age of digital transformation and AI, this paper has become even more important. People increasingly feel ownership over intangible targets: data, accounts, avatars, online identities, AI-assisted creations, and virtual spaces. Future research and policy cannot stop at asking who legally owns something. They must also ask what people feel is theirs, and what behaviors and conflicts that feeling produces.
The small phrase “mine” is more powerful than it appears. It makes people care, protect, and sometimes fight. Psychological ownership is one of the oldest ways human beings relate to the world, and it remains a powerful social psychological force in the digital age.
