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Related Concept Videos

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Social traps are negative situations where people get caught in a direction or relationship that later proves to be unpleasant, with no easy way to back out of or avoid. The concept was orignally introduced by John Platt who applied psychology to Garrett Hardin's "Tragedy of the Commons", where in New England herd owners could let their cattle graze in the common ground. This situation seems like a good idea, but an individual could have an advantage. If they owned...
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As formulated by John Thibaut and Harold Kelley, Social Exchange Theory explains human relationships as economic-like exchanges that maximize rewards and minimize costs. This theory suggests that individuals engage in relationships to gain benefits and reduce burdens, similar to economic transactions. It has been widely applied to various types of relationships, including romantic, professional, and social interactions.Rewards and Costs in RelationshipsRelationship rewards include emotional...
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Social psychology examines how the real or imagined presence of others influences individuals' thoughts, feelings, and behaviors. A key concept in this field is the role of social context in shaping behavior. The same individual may act differently depending on the social setting, due to the varying expectations and norms associated with each environment. This context-dependent behavior illustrates the influence of social roles, which prescribe appropriate conduct in specific situations.Social...
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According to George Herbert Mead, as children progress beyond the game stage, they develop a more comprehensive understanding of societal rules and norms. This cognitive and social development enables them to internalize the expectations of the broader community, refining their ability to regulate behavior.Consistent participation in organized activities is crucial in helping children recognize that their actions are not isolated but contribute to a more significant, interconnected group...
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Related Experiment Video

Updated: Apr 19, 2026

The Joint Effect of Social Comparison and Social Distance on Evaluation of Intertemporal Choice Outcomes in Event-related Potential Studies
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Social externalities, overlap and the poverty trap.

Young-Chul Kim1, Glenn C Loury2

  • 1Department of Economics and Finance, Sangmyung University, Seoul 110-743, South Korea.

Journal of Economic Inequality
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PubMed
Summary

Social groups can escape poverty traps through coordinated expectations about future network quality, influencing human capital investment. This study models network effects across career stages to identify policy interventions.

Keywords:
Group inequalityNetwork externalityOverlapPoverty trap

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Area of Science:

  • Economics
  • Sociology
  • Network Science

Background:

  • Poverty traps are often attributed to network effects, but the role of human capital investment is not fully understood.
  • Existing models do not fully capture how network externalities influence investment decisions across different career stages.

Purpose of the Study:

  • To develop a model incorporating network externalities in both human capital investment and career progression.
  • To analyze how expectations about future network quality impact current investment decisions.
  • To explore the role of coordinated expectations in overcoming poverty traps.

Main Methods:

  • Economic modeling incorporating network externalities.
  • Analysis of human capital investment decisions influenced by current and future network quality.
  • Definition and exploration of "overlap" and "poverty trap" concepts.

Main Results:

  • Network externalities in both early and later career stages significantly influence human capital investment.
  • Coordinated expectations among group members are crucial for determining economic outcomes.
  • The concept of "overlap" demonstrates how improved future expectations can enhance economic performance.

Conclusions:

  • Group expectations and network quality are key determinants of escaping poverty traps.
  • Egalitarian policies can be designed to mobilize disadvantaged groups by fostering positive expectations.
  • The model provides a framework for understanding and addressing persistent poverty through network-based interventions.