World Dynamics1971 |
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Page 8
... falling as low as shown in the figures where population is assumed to continue growing unchecked . But the combination of expanding population with shrinking environment is a general phenomenon with broader implications than for food ...
... falling as low as shown in the figures where population is assumed to continue growing unchecked . But the combination of expanding population with shrinking environment is a general phenomenon with broader implications than for food ...
Page 29
... falling food ratio increases death rate DR to reduce population . The loops of Figure 2-7 , wherein pollution stabilizes population , have probably not had a major impact in the past . But reports on shortened life span from continuous ...
... falling food ratio increases death rate DR to reduce population . The loops of Figure 2-7 , wherein pollution stabilizes population , have probably not had a major impact in the past . But reports on shortened life span from continuous ...
Page 99
... falling natural resources , the population peaks and then declines as before . The effect of the program has been to delay the rise in population for a short time but to leave unchanged the dominant mode of growth limitation , which was ...
... falling natural resources , the population peaks and then declines as before . The effect of the program has been to delay the rise in population for a short time but to leave unchanged the dominant mode of growth limitation , which was ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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1970 conditions accumulation agricultural land assumed assumptions behavior birth rate normal birth-control program BRFM BRMM BRN1 capital investment CAPITAL UNITS CAPITAL UNITS/PERSON CAPITAL-INVESTMENT DISCARD capital-investment multiplier capital-investment ratio CAPITAL-INVESTMENT-IN-AGRICULTURE FRACTION cause Chapter CIAF CIGN1 Club of Rome coefficient computer model crowding ratio curve death rate normal decline DRFM dynamic ECIR effect effective-capital-investment ratio equations equilibrium exponential growth food production food ratio food supply FPMT FRACTION/YEAR in-agriculture fraction increase industrialization INTERPOLATION limit LOGICAL FUNCTION material standard mental models MULTIPLIER DIMENSIONLESS natural resources natural-resource Natural-resource-usage rate negative loop NR=N NREM NREMT NRUN1 POLN1 POLAT POLCM pollution absorption pollution crisis pollution-absorption population and capital population density PRESENT ORIGINAL pressures ratio CIR RATIO DIMENSIONLESS result rise Section sector shortage social systems SQUARE KILOMETERS standard of living system levels TABHL TABLE LOOK TIME.K tion units per person UNITS/PERSON/YEAR UNITS/YEAR usage rate variable world model world population world system