Social Capital Explained: Definition, Types, and Business Impact

By Markets & Investing DeskUpdated Nov 10, 2026

Definition

Social capital is the value people and organizations draw from relationships: the trust, shared norms and networks that let them cooperate, share information and reach resources together.

Key takeaways

Bonding ties link similar people, bridging ties link different groups, and linking ties cross gaps in power.
A 2022 Chetty study tied friendships between lower- and higher-income people to upward economic mobility.
Researchers measure it through proxies such as trust surveys, membership counts and network analysis.
Strong networks can also exclude outsiders, reward insiders and support gangs or price-fixing cartels.

Social capital is the value people and organizations get from their relationships: the trust, shared norms and networks that let them cooperate, exchange information and reach resources they could not easily reach alone. Unlike money or equipment, it sits in no single person’s hands. It exists between people, grows when relationships are used and kept up, and fades when they are neglected.

Every cooperative act carries a cost: checking whether the other side will deliver, writing contracts, monitoring, enforcing. Trust reduces that cost. If you already know a contractor from a neighbor’s recommendation, you spend less time vetting and the contractor has a reason to do good work, because a bad job would travel back through the same network. Social capital is the stock of that accumulated trust and the network that carries it.

Three ingredients appear in almost every definition:

Networks: the actual connections between people, such as family, friends, colleagues, clubs and online communities.
Norms: shared expectations about behavior, especially reciprocity. A favor today is expected to be returned at some point, even if no one writes it down.
Trust: the confidence that others will follow those norms, which makes cooperation cheaper and faster.

When these work together, information flows quickly, people take on joint projects with less friction, and a group can act toward a common goal. When they break down, every interaction needs more formal safeguards.

The idea that relationships have productive value is old. Educator Lyda Hanifan used the term in 1916 to describe community goodwill and fellowship in rural schools. Later scholars formalized it. Pierre Bourdieu treated social capital as one of several forms of capital, alongside economic and cultural capital, and stressed how it helps groups reproduce their advantages. James Coleman described it as a resource embedded in relationships that helps people build human capital such as education. Mark Granovetter’s 1973 paper “The Strength of Weak Ties” argued that acquaintances, not close friends, are often the source of new information such as job leads. Robert Putnam brought the concept to a wide audience with Bowling Alone (2000), which tied declining civic participation in the United States to falling social capital.

Because these thinkers emphasize different things, the term can mean an individual’s personal network, a community’s level of trust or a society’s civic fabric. Reading a study well starts with knowing which one it means.

Bonding social capital forms within a group whose members share interests, background or goals. Families, close friends, ethnic communities and neighborhood associations are typical examples. Bonding ties provide emotional support and quick mutual help, but they tend to recirculate the same information.

Bridging social capital connects different groups whose members are broadly similar in status. A neighborhood association that works with the local police department, or two professional associations that run a joint event, are bridging. These ties expose people to new ideas and contacts, which is where Granovetter’s weak ties matter most.

Linking social capital connects people across differences in socioeconomic status, power or authority, for example a community group and a government agency, or a first-generation student and a senior executive mentor. Linking ties give access to institutions and resources that a group lacks internally. A 2022 study by economist Raj Chetty and colleagues, published in Nature, found that “economic connectedness,” the share of friendships between lower- and higher-income people, was strongly associated with upward economic mobility across U.S. communities.

In business, social capital means the relationships that make commercial activity easier. Common forms include:

Informal hiring. Many positions are filled through referrals and personal networks rather than public listings.
Customer referrals and reputation. Word of mouth brings in clients at lower acquisition cost than advertising.
Supplier and partner trust. A long relationship can mean flexible payment terms, priority during shortages, or a phone call instead of a lawsuit when something goes wrong.
Internal collaboration. Teams with high trust share information more freely and spend less time on defensive documentation, which can support productivity.

Online platforms have widened the reach of these effects. On marketplaces such as Airbnb, Uber and eBay, users choose based on other users’ reviews and then add their own, building a shared pool of reputation that the platforms also use for quality control. Social networks strengthen ties built on hometowns, hobbies or former employers.

Worked example

Hypothetical example for illustration. Maya opens a small bookkeeping firm. She has no advertising budget, so her first clients come through three channels:

Bonding: her former coworkers at an accounting firm refer two clients they could not take on.
Bridging: she joins a local business association and meets a web designer who sends her startups needing bookkeeping.
Linking: a regional small-business development office invites her to run a workshop, which puts her in front of dozens of new owners.

None of these clients cost her advertising money, but they were not free. Each channel took time: staying in touch, attending meetings, preparing the workshop. That time has an opportunity cost, the billable hours or rest she gave up. Her social capital is the expected value of these relationships, and it depends on her keeping the trust she has earned. One badly handled account referred by a former coworker could weaken that whole channel.

No standard formula exists, and researchers disagree about whether a single number is possible. Common approaches use proxies:

Survey measures of generalized trust (“most people can be trusted”) and trust in institutions.
Participation counts, such as membership in clubs, unions, religious groups or volunteering, as used in Putnam’s work.
Network analysis, which maps who is connected to whom and how diverse or dense those connections are.
Large-scale digital data, such as the friendship networks used in the Chetty study to measure connectedness across income groups.

Each proxy captures only part of the concept. Membership counts miss informal ties. Trust surveys depend on how people interpret the question. Network data shows connections but not their quality. For this reason social capital does not appear in national accounts such as GDP, even though economists widely believe trust affects economic performance.

Limitations and downsides

Social capital is often treated as purely good, but the same mechanisms can cause harm.

Exclusion. Strong bonding ties can shut out newcomers. When jobs, contracts or investment opportunities pass through private networks, people without the right connections, often members of marginalized or minority groups, may never hear about them.
Harmful cooperation. Gangs and drug cartels rely on loyalty and trust to hold members together and recruit new ones. Executives who collude to fix prices or push out competitors are also using social capital. Such groups can reduce trust in a wider neighborhood or market, hurting residents and legitimate businesses.
Conformity and favoritism. Tight networks can discourage dissent, reward insiders over better-qualified outsiders, and slide into cronyism.
Catch-all use. A concept this broad can become an explanation for outcomes that have other causes.

Human capital is the knowledge, skills and health a person holds individually. Social capital is held in relationships. Coleman’s point was that the two reinforce each other: supportive networks help people acquire skills.

Financial and physical capital are owned assets that can be bought, sold and recorded on a balance sheet. Social capital cannot be transferred by sale, and using it does not necessarily use it up; using trust well can increase it. In economics, it is usually discussed alongside, not inside, the classic factors of production.

Cultural capital, in Bourdieu’s framework, means education, tastes, credentials and manners that signal status. Social capital means the connections themselves. A degree is cultural capital; the alumni network that comes with it is social capital.

Social capitalism is a different idea entirely. It usually refers to forms of capitalism that combine market economies with social goals or strong welfare systems. It is an economic system, not a stock of relationships.

FAQs

Can a company record social capital as an asset?

Generally not directly. Under U.S. GAAP and IFRS, relationships a company builds internally are not recognized as assets. When one company acquires another, identifiable intangibles such as customer relationships can be recorded at fair value, and part of the value of the target's reputation and relationships ends up in goodwill.

Is social capital the same for everyone in a group?

No. Even within one community or company, access differs. People at the center of a network, or with ties to several groups, usually draw more benefit than those on the edges, which is one reason social capital can widen existing inequalities.

The Bottom Line

Social capital matters to anyone looking for work, building a business or studying how communities prosper. Relationships can bring in clients, jobs and support without advertising costs, but they take time to maintain and depend on keeping earned trust. The same networks can exclude outsiders or enable harmful cooperation, so the term needs a clear definition before it is used to explain outcomes.