World dynamicsWright-Allen Press, 1971 - 142 pages |
From inside the book
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Page 5
... needed for adequate nourishment . For example , if there are 2 agricultural land units per person , the corresponding point on the curve shows a food ratio of 1.0 , which is just sufficient . At 4 units of land per person , the food ...
... needed for adequate nourishment . For example , if there are 2 agricultural land units per person , the corresponding point on the curve shows a food ratio of 1.0 , which is just sufficient . At 4 units of land per person , the food ...
Page 6
... needed . The figure relates a physical variable ( land per per- son ) to a satisfaction or quality of life concept ( adequacy of food supply ) . In a larger system , food ratio would be a factor in determining birth rate and average ...
... needed . The figure relates a physical variable ( land per per- son ) to a satisfaction or quality of life concept ( adequacy of food supply ) . In a larger system , food ratio would be a factor in determining birth rate and average ...
Page 57
... needed for 63 % of any existing pollution to disappear . It represents the same concept as the half - life of atomic decay which is the time for half of the material to disintegrate . A pollution ratio POLR of 1 represents the ...
... needed for 63 % of any existing pollution to disappear . It represents the same concept as the half - life of atomic decay which is the time for half of the material to disintegrate . A pollution ratio POLR of 1 represents the ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
6 other sections not shown
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 factor falling Figure food production food ratio 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 normal NREM NRUN1 occurs ORIGINAL peak person policies pollution crisis pollution ratio POLN1 POLR population possible present pressures probably processes raise rate normal 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