World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 52
... mean a zero value for material standard of living , the ability to accumulate capital is taken as only 0.1 as great as for the average intensity of capital in 1970. The shape of the curve assumes that capital is not uniformly ...
... mean a zero value for material standard of living , the ability to accumulate capital is taken as only 0.1 as great as for the average intensity of capital in 1970. The shape of the curve assumes that capital is not uniformly ...
Page 68
... mean " whole system " in the context of some particular mode of behavior . A whole system from one viewpoint is a ... means that the pollution ratio POLR appears on the graph as the symbol 2. The variables , like POLR , are expressed ...
... mean " whole system " in the context of some particular mode of behavior . A whole system from one viewpoint is a ... means that the pollution ratio POLR appears on the graph as the symbol 2. The variables , like POLR , are expressed ...
Page 124
... means releasing stress , reducing crowding , reducing pollution , alleviating hunger , and treating ill health . But these pressures are exactly the sources of concern and actions that will control total population to keep it within the ...
... means releasing stress , reducing crowding , reducing pollution , alleviating hunger , and treating ill health . But these pressures are exactly the sources of concern and actions that will control total population to keep it within the ...
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