World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 9
... population growth , capital investment generation , natural - resource usage , pollution control , and agricultural output . Figure 1-6 , discussed more fully in Chapter 4 , illustrates one possible future . Here population and capital ...
... population growth , capital investment generation , natural - resource usage , pollution control , and agricultural output . Figure 1-6 , discussed more fully in Chapter 4 , illustrates one possible future . Here population and capital ...
Page 23
... Population increases birth rate which increases population , and the criteria for a positive - feedback loop are met . If there were no constraint ... Capital - investment generation Structure of the World System 23 Capital-Investment Loops.
... Population increases birth rate which increases population , and the criteria for a positive - feedback loop are met . If there were no constraint ... Capital - investment generation Structure of the World System 23 Capital-Investment Loops.
Page 51
... capital investment is described as depending on population P , multiplied by capital - investment generation normal CIGN , and multiplied by the capital - investment multiplier CIM . Capital - investment generation CIG is mea- sured in ...
... capital investment is described as depending on population P , multiplied by capital - investment generation normal CIGN , and multiplied by the capital - investment multiplier CIM . Capital - investment generation CIG is mea- sured in ...
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