Lecture 3 - pop debate

Lecture 3 - pop debate - September 7, 2009 Malthus and...

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Unformatted text preview: September 7, 2009 Malthus and Population Debate The Food Crisis Limited Resources Environment Economic Development Last Time • Emphasis on World Population Growth – Exponential growth (29 th day?) – Add a day? • Demographic mechanisms – the gap between fertility and mortality (formal demography) • Today: What are the consequences of adding 60 million people a year globally? Demographic Consequences: Distribution and Composition of Growth Malthus: Essay on Population (1798) Malthus reasoned as follows: • Food is necessary for the existence of man • “Passion between the sexes is nessary and will remain nearly in its present state” (i.e., people like sex) • Populations appeared to increase by a fixed proportion over a given period of time (I.e., exponential) while food increases arithmetically Conclusion • “The power of population is infinitely greater than the power in the earth to produce subsistence for man” • Overpopulation leads to poverty Population control: Two checks • Preventive Checks – “moral restraint” – postponement of marriage and celibacy (little faith in this) – Vice – “”promiscious intercourse, unnatural passions, violation of the marriage bed, and improper acts to conceal the consequences of irregular connections” (not an advocate) • Positive Checks (misnomer!) – War – Disease – Famine (Food was the ultimate check because population oscillates around its means of production) Was Malthus Right? (not so far) • Understated people’s ability to use contraception – Neo-Mathusians believe in contraception World Family Planning Methods, Women in Unions,1999 Pill 8% IUD 14% Injectable or Implant 3% Male Condom 5% Female Sterilization 21% Not Using 39% Other Modern Methods 1% Traditional Methods 7% Male Sterilization 3% Note: Total exceeds 100 due to rounding. Source: United Nations Population Division, World Contraceptive Use 2005 ....
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Lecture 3 - pop debate - September 7, 2009 Malthus and...

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