World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 58
... indicated fraction is computed from the capital fraction indicated by food ratio CFIFR multiplied by the capital- investment - from - quality ratio CIQR . The latter allows for a weighting of the quality - of - life factors between food ...
... indicated fraction is computed from the capital fraction indicated by food ratio CFIFR multiplied by the capital- investment - from - quality ratio CIQR . The latter allows for a weighting of the quality - of - life factors between food ...
Page 59
... INDICATED BY FOOD RATIO ( DIMENSIONLESS ) CAPITAL - INVESTMENT - FROM - QUALITY RATIO ( DIMENSIONLESS ) - CAPITAL - INVESTMENT - IN - AGRICULTURE FRACTION , INITIAL ( DIMENSIONLESS ) 3.36 Capital Fraction Indicated by Food Ratio CFIFR ...
... INDICATED BY FOOD RATIO ( DIMENSIONLESS ) CAPITAL - INVESTMENT - FROM - QUALITY RATIO ( DIMENSIONLESS ) - CAPITAL - INVESTMENT - IN - AGRICULTURE FRACTION , INITIAL ( DIMENSIONLESS ) 3.36 Capital Fraction Indicated by Food Ratio CFIFR ...
Page 135
... indicates the rate of flow that is being computed for the following time interval . Variables and constants are ... indicating the kind of concept that is defined by the equation . The letter L indicates a level equation , N an initial ...
... indicates the rate of flow that is being computed for the following time interval . Variables and constants are ... indicating the kind of concept that is defined by the equation . The letter L indicates a level equation , N an initial ...
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