World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 44
... crowding multiplier vs. crowding ratio . 5 10 14 , A 14.1 , T DRCM.K = TABLE ( DRCMT , CR.K , 0,5,1 ) DRCMT = .9 / 1 / 1.2 / 1.5 / 1.9 / 3 · - DEATH - RATE - FROM - CROWDING MULTIPLIER ( DIMENSIONLESS ) - LOGICAL FUNCTION , TABLE LOOK ...
... crowding multiplier vs. crowding ratio . 5 10 14 , A 14.1 , T DRCM.K = TABLE ( DRCMT , CR.K , 0,5,1 ) DRCMT = .9 / 1 / 1.2 / 1.5 / 1.9 / 3 · - DEATH - RATE - FROM - CROWDING MULTIPLIER ( DIMENSIONLESS ) - LOGICAL FUNCTION , TABLE LOOK ...
Page 45
... Crowding Multiplier BRCM Figure 3-7 is the estimated effect of crowding on birth rate . The multiplier has a value of 1 for 1970 conditions . For less crowding , there is little increase in birth rate . For greater crowding , the ...
... Crowding Multiplier BRCM Figure 3-7 is the estimated effect of crowding on birth rate . The multiplier has a value of 1 for 1970 conditions . For less crowding , there is little increase in birth rate . For greater crowding , the ...
Page 86
... crowding sector as well . If crowding were to lead to international conflict and an atomic war , population would probably drop back below the equilibrium point and then grow again . If crowding contributes to massive epidemics of ...
... crowding sector as well . If crowding were to lead to international conflict and an atomic war , population would probably drop back below the equilibrium point and then grow again . If crowding contributes to massive epidemics of ...
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