World Dynamics1971 |
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Page 6
... shows the same population , doubling each 50 years , as in Figure 1-1 . Population is here assumed to be growing into a space of 24,000 million land units . The third column gives the land units needed for occupancy at the rate of 1 ...
... shows the same population , doubling each 50 years , as in Figure 1-1 . Population is here assumed to be growing into a space of 24,000 million land units . The third column gives the land units needed for occupancy at the rate of 1 ...
Page 61
... shows one assumption . The curve displays a high sensitivity to crowding in the range of CR equal to 1 at the 1970 point . The curve is shown as continuing to rise to the left as crowding ( population ) declines . - QUALITY OF LIFE FROM ...
... shows one assumption . The curve displays a high sensitivity to crowding in the range of CR equal to 1 at the 1970 point . The curve is shown as continuing to rise to the left as crowding ( population ) declines . - QUALITY OF LIFE FROM ...
Page 98
... shows but slight change in the ultimate outcome . In Figure 5-2 there is a brief pause in the growth of population after the birth - control program is started in 1970. But during the pause , capital investment continues to increase . A ...
... shows but slight change in the ultimate outcome . In Figure 5-2 there is a brief pause in the growth of population after the birth - control program is started in 1970. But during the pause , capital investment continues to increase . A ...
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