World Dynamics |
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Page 2
But in time , growth encounters limits set by nature . ... since Malthus stated his
propositions relating population and food some 150 years ago , the validity of his
assumption that food imposes an ultimate limit on population has been debated .
But in time , growth encounters limits set by nature . ... since Malthus stated his
propositions relating population and food some 150 years ago , the validity of his
assumption that food imposes an ultimate limit on population has been debated .
Page 3
If the pressures created by approach to the limit are not great enough to suppress
growth , then growth continues until the limit has been overstepped far enough to
generate forces sufficient to inhibit growth . Exponential growth is only ...
If the pressures created by approach to the limit are not great enough to suppress
growth , then growth continues until the limit has been overstepped far enough to
generate forces sufficient to inhibit growth . Exponential growth is only ...
Page 43
At the ultimate limit , shortage of space to stand would stop the increase of
population ! But long before that ultimate is reached , other , more subtle effects of
crowding can be expected to exert strong pressures . Crowding is here assumed
to ...
At the ultimate limit , shortage of space to stand would stop the increase of
population ! But long before that ultimate is reached , other , more subtle effects of
crowding can be expected to exert strong pressures . Crowding is here assumed
to ...
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Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
5 other sections not shown
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Common terms and phrases
accumulation action actual agriculture appear assumed assumptions average become behavior billion birth rate capital investment Capital-investment cause Chapter consequences continue created crowding curve death rate decline defined depends described developed discard discussed dynamic effect environment equations equilibrium examine existing expect factors falling Figure food production food ratio food supply forces fraction further future gives greater grow growth higher improve increase indicated industrialization influence initial land less limit LOGICAL FUNCTION loop lower material standard means mode MULTIPLIER DIMENSIONLESS natural resources natural-resource needed normal NREM occurs person policies pollution crisis pollution ratio POLR population possible PRESENT ORIGINAL pressures probably processes rate normal RATIO DIMENSIONLESS reaches reduced relationship remaining represents result rise sector shortage shown shows social systems space standard of living stop structure suppressed TABLE taken tion UNITS usage variable world system