World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 5
... examines some of the forces that will become barriers when growth goes too far . It examines the changes that can arise to stop exponential growth . It begins to examine the transition from a world of growth to a world in equi- librium ...
... examines some of the forces that will become barriers when growth goes too far . It examines the changes that can arise to stop exponential growth . It begins to examine the transition from a world of growth to a world in equi- librium ...
Page 32
... examine the assumptions and rela- tionships for plausibility . If he were to engage in extending and refining the model , he would want to test his alternate hypotheses by altering the assumptions given here to determine which changes ...
... examine the assumptions and rela- tionships for plausibility . If he were to engage in extending and refining the model , he would want to test his alternate hypotheses by altering the assumptions given here to determine which changes ...
Page 68
... examining the forces and interactions that can result from factors that are already known . We know much about the forces ... examine other kinds of world equilibrium that could be created by changes in social policies . 4.1 Reading the ...
... examining the forces and interactions that can result from factors that are already known . We know much about the forces ... examine other kinds of world equilibrium that could be created by changes in social policies . 4.1 Reading 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