World DynamicsExamination of the structure of countervailing forces such as population growth, food production, capital investment, natural resources depletion, pollution, etc., at world level when exponential growth rate overburdens the environment - simulates world growth trends by means of a large-scale computer model and shows that a global equilibrium could be achieved if social policies and programmes were chosen taking into account the dynamic characteristics of world social systems. Flow charts. |
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Page 38
... rate of flow is the outgoing usage rate . As defined here , natural resources include only those nonreplaceable materials in the earth . They do not include wood and any products that can be grown and replenished , for the latter are ...
... rate of flow is the outgoing usage rate . As defined here , natural resources include only those nonreplaceable materials in the earth . They do not include wood and any products that can be grown and replenished , for the latter are ...
Page 39
Jay W. Forrester. from the definition of usage rate as one unit per year per person and the assump- tion of a 250 - year remaining supply of natural resources . NR.K = NR.J + ( DT ) ( -NRUR.JK ) NR - NRI NRI ... Usage Rate NRUR Death Rate DR.
Jay W. Forrester. from the definition of usage rate as one unit per year per person and the assump- tion of a 250 - year remaining supply of natural resources . NR.K = NR.J + ( DT ) ( -NRUR.JK ) NR - NRI NRI ... Usage Rate NRUR Death Rate DR.
Page 74
... usage rate of natural resources were to be sharply curtailed without affecting any other part of the system . This might correspond to either an altered estimate of the actual rate of consumption relative to the available stocks in the ...
... usage rate of natural resources were to be sharply curtailed without affecting any other part of the system . This might correspond to either an altered estimate of the actual rate of consumption relative to the available stocks in the ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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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 major material standard means mode MULTIPLIER DIMENSIONLESS natural resources natural-resource normal NREM NRUN1 occurs ORIGINAL peak person policies pollution crisis pollution ratio POLR population possible present pressures probably processes rate normal reaches reduced relationship remaining represents result rise sector shortage shown shows social systems space standard of living stop structure suppressed SWITCH taken tion units usage variable world system