World dynamicsWright-Allen Press, 1971 - 142 pages |
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Page 38
... initial depletion of resources probably does not have much effect on availability of the remainder . Through the ... initial NRI gives the natural - resource fraction remaining NRFR . NRFR.K - NR.K / NRI NRFR 7 , A ยท NATURAL - RESOURCE ...
... initial depletion of resources probably does not have much effect on availability of the remainder . Through the ... initial NRI gives the natural - resource fraction remaining NRFR . NRFR.K - NR.K / NRI NRFR 7 , A ยท NATURAL - RESOURCE ...
Page 50
... initial value is needed for capital investment in the year 1900. We assume here that the capital investment per capita in 1900 was 0.25 unit per person compared to the 1970 value of 1 unit per person . Because the initial value of ...
... initial value is needed for capital investment in the year 1900. We assume here that the capital investment per capita in 1900 was 0.25 unit per person compared to the 1970 value of 1 unit per person . Because the initial value of ...
Page 54
... initial value of pollution for the year 1900 must be specified . We here take one - eighth as much per capita as in 1970 , giving ( 0.125 ) ( 1.6 ) , or 0.2 billion pollution units . POL.K - POL.J + ( DT ) ( POLG.JK - POLA.JK ) 30 , L ...
... initial value of pollution for the year 1900 must be specified . We here take one - eighth as much per capita as in 1970 , giving ( 0.125 ) ( 1.6 ) , or 0.2 billion pollution units . POL.K - POL.J + ( DT ) ( POLG.JK - POLA.JK ) 30 , L ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
6 other sections not shown
Common terms and phrases
1970 conditions accumulation agricultural land assumed assumptions behavior billion 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 cause Chapter CI=C CIAF CIGN1 CIMT Club of Rome coefficient computer model crowding ratio curve death rate normal decline DRFM dynamic ECIR effect effective-capital-investment ratio equations equilibrium exponential growth food production food ratio food supply FPMT FRACTION/YEAR in-agriculture fraction increase industrialization INTERPOLATION limit LOGICAL FUNCTION material standard mental models MULTIPLIER DIMENSIONLESS natural-resource Natural-resource-usage rate negative loop NR=N NREM NREMT NRUN1 POLN1 POLAT pollution absorption pollution crisis pollution ratio POLR POLLUTION UNITS pollution-absorption population and capital population density pressures QL-Q ratio CIR RATIO DIMENSIONLESS result rise Section sector shortage social systems SQUARE KILOMETERS standard of living system levels TABHL TABLE LOOK tion units per person UNITS/PERSON/YEAR UNITS/YEAR usage rate variable world model world population world system