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Related Concept Videos

Social Traps01:41

Social Traps

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 more cows, the larger...
Limits to Natural Selection01:38

Limits to Natural Selection

Organisms that are well-adapted to their environment are more likely to survive and reproduce. However, natural selection does not lead to perfectly adapted organisms. Several factors constrain natural selection.For one, natural selection can only act upon existing genetic variation. Hypothetically, redtusks may enhance elephant survival by deterring ivory-seeking poachers. However, if there are no gene variants—or alleles—for redtusks, natural selection cannot increase the prevalence of...
Criticisms of the Evolutionary Perspective01:23

Criticisms of the Evolutionary Perspective

In a study where individuals posing as strangers offered compliments and proposed casual sex to students, the responses differed significantly based on gender. Not a single woman accepted the proposal, while 70% of the men agreed. This outcome provides a useful scenario to explore through the lens of evolutionary psychology and social learning theory, highlighting the diverse perspectives on human sexual behaviors.
Evolutionary psychology provides one explanation for these findings, suggesting...
Truncation in Survival Analysis01:09

Truncation in Survival Analysis

Truncation in survival analysis refers to the exclusion of individuals or events from the dataset based on specific criteria related to the time of the event. This exclusion can happen in two primary forms: left truncation and right truncation.
Left truncation occurs when individuals who experienced the event of interest before a certain time are not included in the study. This is often due to a "delayed entry" into the study where only those who survive until a certain entry point are observed.
Reason and Intuition01:37

Reason and Intuition

The human brain processes information for decision-making using one of two routes: an intuitive system and a rational system (Epstein, 1994; popularized by Kahneman, 2011 as System 1 and System 2, respectively). The intuitive system is quick, impulsive, and operates with minimal effort, relying on emotions or habits to provide cues for what to do next, while the rational system is logical, analytical, deliberate, and methodical. Research in neuropsychology suggests that the brain can only use...
Population Growth00:57

Population Growth

Population size is dynamic, increasing with birth rates and immigration, and decreasing with death rates and emigration. In ideal conditions with unlimited resources, populations can increase exponentially, which plots as a J-shaped growth rate curve of population size against time. This type of curve is characteristic of newly-introduced invasive species, or populations that have suffered catastrophic declines and are rebounding.However, realistic environmental conditions limit the number of...

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Related Experiment Video

Updated: Jul 6, 2026

Low-Cost Automated Flight Intercept Trap for the Temporal Sub-Sampling of Flying Insects Attracted to Artificial Light at Night
06:19

Low-Cost Automated Flight Intercept Trap for the Temporal Sub-Sampling of Flying Insects Attracted to Artificial Light at Night

Published on: December 29, 2021

Escaping traps: Malthusian and intellectual.

P C Brown

    Canadian Journal of History
    |March 28, 2008
    PubMed
    Summary

    This review examines Alan Macfarlane's "The Savage Wars of Peace," exploring England and Japan's engagement with the Malthusian trap. It analyzes historical population dynamics and economic development.

    Area of Science:

    • Historical Sociology
    • Economic History
    • Anthropology

    Background:

    • Reviews Alan Macfarlane's 1997 book, "The Savage Wars of Peace: England, Japan and the Malthusian Trap."
    • Focuses on comparative historical analysis of societal development.
    • Examines the concept of the Malthusian trap in different cultural contexts.

    Discussion:

    • Compares England's and Japan's historical trajectories regarding population growth and resource limits.
    • Investigates how societies navigate or escape the Malthusian trap.
    • Considers the role of cultural and political factors in economic outcomes.

    Key Insights:

    • Macfarlane's work offers insights into long-term demographic and economic patterns.
    • Highlights the diverse pathways nations have taken in response to Malthusian pressures.

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  • Underscores the interconnectedness of social structures, population, and economic systems.
  • Outlook:

    • The review provides a framework for understanding historical population dynamics.
    • Offers lessons applicable to contemporary discussions on sustainability and development.
    • Encourages further comparative research on societal resilience and adaptation.