World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 34
... appears in Figure 3-1 . When the material standard of living MSL has a value of 1 , it means that the world - wide aggregate material goods per capita are at the 1970 world average . This yields 1 as the value of BRMM and defines the ...
... appears in Figure 3-1 . When the material standard of living MSL has a value of 1 , it means that the world - wide aggregate material goods per capita are at the 1970 world average . This yields 1 as the value of BRMM and defines the ...
Page 56
... appear to be such a simple pro- cess . The time needed for a specified fraction of any existing pollution to dis- appear seems to depend on the amount of the pollution itself . The pollution- absorption time POLAT is therefore a ...
... appear to be such a simple pro- cess . The time needed for a specified fraction of any existing pollution to dis- appear seems to depend on the amount of the pollution itself . The pollution- absorption time POLAT is therefore a ...
Page 94
... appear to be sound . Commitment increases to the apparent solutions . If the presumed solu- tions actually make ... appears as a result of solving the old , has already been illustrated in Chapter 4. The first mode exhibited by the world ...
... appear to be sound . Commitment increases to the apparent solutions . If the presumed solu- tions actually make ... appears as a result of solving the old , has already been illustrated in Chapter 4. The first mode exhibited by the world ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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Common terms and phrases
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