World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 43
... raise death rate when food per person falls and to reduce death rate when food per person rises . The result is to ... raises the food per person for a short time until relaxation of the food pressures causes popula- tion to again rise ...
... raise death rate when food per person falls and to reduce death rate when food per person rises . The result is to ... raises the food per person for a short time until relaxation of the food pressures causes popula- tion to again rise ...
Page 104
... raises the capital invest- ment per person and the capability for accumulating capital . The secondary consequences of starting a birth - control program will be to increase the influences that raise birth rate and to reduce the ...
... raises the capital invest- ment per person and the capability for accumulating capital . The secondary consequences of starting a birth - control program will be to increase the influences that raise birth rate and to reduce the ...
Page 132
... raise the standard of living and the quality of life . If we use physical and social stress as the incentive to develop the forces of self - restraint , then growth can be controlled without direct imposition of excessive stresses . The ...
... raise the standard of living and the quality of life . If we use physical and social stress as the incentive to develop the forces of self - restraint , then growth can be controlled without direct imposition of excessive stresses . 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