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Interest Group

An interest group is a contract-based association of natural or legal persons who pursue shared interests for a common economic or political purpose. It is not a legal form of its own, members remain legally independent.

  • Not an independent legal form, no clear-cut legal definition
  • No required contract form, no registration or notification duty
  • Usually structured as a civil-law partnership, but other forms are possible
  • Economically, members can share material and immaterial resources, which lowers costs and increases profitability
  • Splitting up production tasks can give individual members economic independence they could not achieve alone

Motives​

  • Gain more influence, knowledge or scope for action
  • Represent shared interests (economic, social or political) externally
  • Exchange experience
  • Run joint projects, research or marketing
  • Promote shared values

Advantages and disadvantages​

AdvantagesDisadvantages
Bundle resources and reach goals efficientlyNeed for compromise, own interests may suffer
Stronger presence vs. politics, market, publicRisk of conflicts and dependencies
Exchange of know-how, experience, resourcesOrganisational overhead
Cheaper, more effective joint projectsPossible competition restrictions

Effects on others​

  • Other companies: can benefit from lower supplier prices (bulk purchasing), but face displacement if outsiders cannot match the prices
  • Consumers: cheaper, possibly higher-quality products, but less variety and potentially less innovation
  • Economy: stabilises markets and smooths supply / demand shocks, risk of monopolistic structures when few players dominate

Comparison with Joint Venture​

While both forms involve cooperation between independent companies, they differ in structure and purpose:

AspectInterest GroupJoint Venture
Legal formNo own legal form, often a civil-law partnershipOften a newly founded legal entity (e.g. GmbH)
Contractual strictnessInformal, no fixed form requiredFormally regulated, rights and obligations clearly defined
PurposeBroad, ongoing shared interests (lobbying, cost sharing)Specific project or goal with a defined scope
Profit/loss sharingNot necessarily agreed uponExplicitly agreed between partners
Typical durationOpen-endedOften project-bound or time-limited

In short: an interest group is a looser, often informal arrangement to pursue common goals, while a joint venture is a tighter contractual partnership, usually set up to achieve a specific objective, often through a newly founded company.

Examples​

  • Toyota and Subaru: joint research and development on diesel engines (cost-sharing while remaining competitors)
  • H&M and IKEA: cooperation on recycled material production to meet sustainability requirements