World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 68
... mode of behavior . The modes of behavior of interest in this book encompass the interactions that occur when exponential growth collides with a fixed environment . In other words , we here are examining the forces and interactions that ...
... mode of behavior . The modes of behavior of interest in this book encompass the interactions that occur when exponential growth collides with a fixed environment . In other words , we here are examining the forces and interactions that ...
Page 94
... mode of system behavior that also has unpleasant consequences . Second , the attempt to produce short - term improvement often sets the stage for a long - term degradation . Third , the local goals of a part of a system often conflict ...
... mode of system behavior that also has unpleasant consequences . Second , the attempt to produce short - term improvement often sets the stage for a long - term degradation . Third , the local goals of a part of a system often conflict ...
Page 112
... mode . The world system can exhibit modes that are more hopeful than those in Chapters 4 and 5. But to develop the more promising modes will require restraint and dedication to a long - range future that man may not be capable of ...
... mode . The world system can exhibit modes that are more hopeful than those in Chapters 4 and 5. But to develop the more promising modes will require restraint and dedication to a long - range future that man may not be capable of ...
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