World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 30
... lower the natural - resource fraction remaining NRFR and lower the natural- resource - extraction multiplier NREM . This in turn reduces the effective - capital- investment ratio ECIR and the material standard of living MSL . The ...
... lower the natural - resource fraction remaining NRFR and lower the natural- resource - extraction multiplier NREM . This in turn reduces the effective - capital- investment ratio ECIR and the material standard of living MSL . The ...
Page 51
... lower than in 1970 , the ability on a per capita basis to accumulate capital would be lower , implying that pressures would be higher for consuming currently all that is produced rather than saving to expand future production . The ...
... lower than in 1970 , the ability on a per capita basis to accumulate capital would be lower , implying that pressures would be higher for consuming currently all that is produced rather than saving to expand future production . The ...
Page 117
... lower natural - resource - usage rate and lower pollution generation — are changes aimed at improving the quality of life but , as such , are growth - inducing rather than growth- suppressing . In Figure 6-3 it should be noted that the ...
... lower natural - resource - usage rate and lower pollution generation — are changes aimed at improving the quality of life but , as such , are growth - inducing rather than growth- suppressing . In Figure 6-3 it should be noted that the ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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1970 conditions assumed assumptions behavior birth rate normal birth-control program BRFM BRN1 capital investment CAPITAL UNITS CAPITAL UNITS/PERSON CAPITAL-INVESTMENT DISCARD capital-investment ratio CAPITAL-INVESTMENT-IN-AGRICULTURE FRACTION Chapter CI=C CIAF CIGN1 Club of Rome computer model crowding ratio curve decline DRFM ECIR effect effective-capital-investment ratio environment equations equilibrium exponential growth food production food ratio food supply FPMT in-agriculture fraction increase industrialization INTERPOLATION Limits to Growth LOGICAL FUNCTION Main Street Cambridge material standard mental models MULTIPLIER DIMENSIONLESS natural resources natural-resource Natural-resource-usage rate negative loop NR=N NREM NREMT NRUN1 POLN1 physical limits physical stress POLAT pollution absorption pollution crisis pollution-absorption population and capital population density PRESENT ORIGINAL pressures processes QL-Q ratio CIR RATIO DIMENSIONLESS rise Section sector shortage social stress social systems standard of living structure system levels TABHL TABLE LOOK tion units per person UNITS/PERSON/YEAR UNITS/YEAR usage rate variable world model world population world system