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Crimes and the Bell Curve: The Role of People with High, Average, and Low Intelligence

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  • Burhan, Nik Ahmad Sufian
  • Kurniawan, Yohan
  • Sidek, Abdul Halim
  • Mohamad, Mohd Rosli

Abstract

The present study examines whether crime rates can be reduced by increasing the IQ of people with high, average, and low IQ. Previous studies have shown that as a determinant of the national level of income per capita growth and technological achievement, the IQ of the intellectual class (those at the 95th percentile of the Bell curve distribution of population intelligence) is more important than the IQ of those with average ability at the 50th percentile. Extending these findings, our study incorporates the non-intellectual class (IQ at the 5th percentile) to examine the role of IQ classes in determining crime rates across countries. We conducted hierarchical multiple regression analyses with IQ, seven types of crimes, and nine control variables: urbanization, alcohol consumption, unemployment rate, young to old population ratio, income inequality, education attainment, drug consumption, police rate, and income per capita. Regardless of types of crimes, we found evidence that raising IQ will lessen crime rates, with raises in the 95th percentile group having the most number of significant impacts, followed by the 50th and then the 5th percentile groups. Furthermore, none of the nine control factors was stronger than the 95th percentile group in predicting crime rates. We conclude that the intellectual class influences rates of more types of crime than the non-intellectual class does. The intellectual class has the highest authority in determining law enforcement and development policies. Therefore, increasing the IQ of politicians and leaders from this class than other social classes will have a more significant influence in reducing crime rates, through enhanced functionality and quality of institutions across countries.

Suggested Citation

  • Burhan, Nik Ahmad Sufian & Kurniawan, Yohan & Sidek, Abdul Halim & Mohamad, Mohd Rosli, 2014. "Crimes and the Bell Curve: The Role of People with High, Average, and Low Intelligence," MPRA Paper 77314, University Library of Munich, Germany.
  • Handle: RePEc:pra:mprapa:77314
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    References listed on IDEAS

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    Cited by:

    1. Burhan, Nik Ahmad Sufian & Che Razak, Razli & Salleh, Fauzilah & Labastida Tovar, María Elena, 2017. "Intelligence and the Ease of Doing Business: Does Intellectual Class Facilitate Leadership and Entrepreneurship?," MPRA Paper 77503, University Library of Munich, Germany.
    2. Salahodjaev, Raufhon, 2016. "Intelligence and deforestation: International data," Forest Policy and Economics, Elsevier, vol. 63(C), pages 20-27.
    3. Burhan, Nik Ahmad Sufian & Che Razak, Razli & Selamat, Muhamad Rosli & Rosli, Muhamad Ridhwan, 2017. "Intellectual Giftedness for Leadership: How Robust is the Crime Reducing Effect of Intellectual Class?," MPRA Paper 77467, University Library of Munich, Germany.
    4. repec:eee:jcjust:v:51:y:2017:i:c:p:34-58 is not listed on IDEAS

    More about this item

    Keywords

    bell curve; crimes; intellectual class; national IQ; non-intellectual class;

    JEL classification:

    • I25 - Health, Education, and Welfare - - Education - - - Education and Economic Development
    • J24 - Labor and Demographic Economics - - Demand and Supply of Labor - - - Human Capital; Skills; Occupational Choice; Labor Productivity
    • K42 - Law and Economics - - Legal Procedure, the Legal System, and Illegal Behavior - - - Illegal Behavior and the Enforcement of Law
    • Z13 - Other Special Topics - - Cultural Economics - - - Economic Sociology; Economic Anthropology; Language; Social and Economic Stratification

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