World Dynamics |
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Page 33
2 Birth Rate BR The birth rate is part of the positive - feedback loop shown in
Figure 2 - 2 . Basic birth rate depends on population P and on a coefficient BRN .
Birth rate normal BRN states the birth rate per year as a fraction of the population
.
2 Birth Rate BR The birth rate is part of the positive - feedback loop shown in
Figure 2 - 2 . Basic birth rate depends on population P and on a coefficient BRN .
Birth rate normal BRN states the birth rate per year as a fraction of the population
.
Page 34
This is the difference between the birth rate and the death rate which we will here
take as the difference between the ... 2 % difference and would be compatible
with observed demographic rates for the first threequarters of this century .
This is the difference between the birth rate and the death rate which we will here
take as the difference between the ... 2 % difference and would be compatible
with observed demographic rates for the first threequarters of this century .
Page 46
17 Birth - Rate - from - Food Multiplier BRFM The availability of food can be
expected to have a substantial effect on birth ... It appears that the world has
normally existed in that sensitive region where food regulates birth and death
rates so that ...
17 Birth - Rate - from - Food Multiplier BRFM The availability of food can be
expected to have a substantial effect on birth ... It appears that the world has
normally existed in that sensitive region where food regulates birth and death
rates so that ...
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Contents
Introduction | 1 |
Structure of the World System | 17 |
Limits to Growth | 67 |
Copyright | |
5 other sections not shown
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Common terms and phrases
accumulate action actual agriculture appear assumed assumptions average become behavior better 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 equation equilibrium examine existing expect factors falling Figure food production food ratio forces fraction further future gives grow growth higher improve increase indicates industrialization influence INITIAL land less limit LOGICAL FUNCTION loop lower material standard means mental mode MULTIPLIER DIMENSIONLESS natural resources natural-resource needed NREM occurs person policies pollution crisis pollution ratio POLR population possible present 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 SWITCH TABLE taken tion understand UNITS usage variable world system
Bibliographic information
| Title | World Dynamics |
| Authors | Jay W. Forrester, JAY W AUTOR FORRESTER |
| Edition | 2 |
| Publisher | Wright-Allen Press, 1971 |
| Length | 142 pages |
| Export Citation | BiBTeX EndNote RefMan |