World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page xi
... action is doing so on the basis of the model in which he , at that time , has the greatest confidence . Having ... actions . Those others who find this model more persuasive than the one they are now using presumably will wish to employ ...
... action is doing so on the basis of the model in which he , at that time , has the greatest confidence . Having ... actions . Those others who find this model more persuasive than the one they are now using presumably will wish to employ ...
Page 17
... action . We often erroneously think of cause and effect as flowing in only one direction . We speak of action A causing result B. But such a perception is incomplete . Result B represents a new condition of the system that changes the ...
... action . We often erroneously think of cause and effect as flowing in only one direction . We speak of action A causing result B. But such a perception is incomplete . Result B represents a new condition of the system that changes the ...
Page 93
... actions they are taking to solve the problem . Generally speaking we find that people perceive correctly their immedi ... action . In a troubled company , people are usually trying in good conscience and to the best of their abilities to ...
... actions they are taking to solve the problem . Generally speaking we find that people perceive correctly their immedi ... action . In a troubled company , people are usually trying in good conscience and to the best of their abilities to ...
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