Economics for Business II Day 13 - Malthus Dr. Andrew L. H. Parkes “A Macroeconomic Understanding for use in Business” 卜安吉.

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Economics for Business II Day 13 - Malthus Dr. Andrew L. H. Parkes “A Macroeconomic Understanding for use in Business” 卜安吉

February 14, 2012BECO II Day 13 - Malthus2 Thomas Robert Malthus An Essay on the Principle of Population as it Affects the Future Improvement of Society (1798): An Essay on the Principle of Population as it Affects the Future Improvement of Society (1798): In this famous work, Malthus posited his hypothesis that (unchecked) population growth always exceeds the growth of means of subsistence due to the fixed land resources in the world. In this famous work, Malthus posited his hypothesis that (unchecked) population growth always exceeds the growth of means of subsistence due to the fixed land resources in the world. Malthus was a Classical Economist along with Adam Smith, David Hume and David Ricardo Malthus was a Classical Economist along with Adam Smith, David Hume and David Ricardo

February 14, 2012BECO II Day 13 - Malthus3 Mathus’ Logic “Food is necessary to the existence of Man” “Food is necessary to the existence of Man” “The Passion between the sexes is necessary and will remain nearly in its present state” “The Passion between the sexes is necessary and will remain nearly in its present state” His conclusion: His conclusion: “The power of population is infinitely greater than the power in the earth to produce subsistence for man.” “The power of population is infinitely greater than the power in the earth to produce subsistence for man.”

February 14, 2012BECO II Day 13 - Malthus4 Thomas Robert Malthus Malthus' hypothesis implied that actual population always has a tendency to push above the food supply due to arable land available. Malthus' hypothesis implied that actual population always has a tendency to push above the food supply due to arable land available. The only Check on population growth was “misery and vice.” The only Check on population growth was “misery and vice.”

February 14, 2012BECO II Day 13 - Malthus5 Thomas Robert Malthus An English minister,

February 14, 2012BECO II Day 13 - Malthus6 Thomas Robert Malthus Actual (checked) population growth is kept in line with food supply growth by "positive checks" (starvation, disease and the like, elevating the death rate) and "preventive checks" (i.e. postponement of marriage, etc. that keep down the birthrate), both of which are characterized by "misery and vice".

February 14, 2012BECO II Day 13 - Malthus7 Where did Mathus go wrong? Growth in Human Ingenuity has offset the effects of a larger population growth. Growth in Human Ingenuity has offset the effects of a larger population growth. Pesticides, fertilizers, mechanized equipment, new crop varieties, and other technological advances. Pesticides, fertilizers, mechanized equipment, new crop varieties, and other technological advances. One of the resources for the above is N. Gregory Mankiw’s book, Principles of Macroeconomics, 2007 One of the resources for the above is N. Gregory Mankiw’s book, Principles of Macroeconomics, 2007