World dynamicsWright-Allen Press, 1971 - 142 pages |
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Page 24
... discard CID . In the negative loop capital- investment discard normal CIDN with a value of 0.025 gives the fraction of capital investment that wears out and is removed from the active stock each year . This is a 2.5 % discard rate per ...
... discard CID . In the negative loop capital- investment discard normal CIDN with a value of 0.025 gives the fraction of capital investment that wears out and is removed from the active stock each year . This is a 2.5 % discard rate per ...
Page 53
Jay Wright Forrester. 3.27 Capital - Investment Discard CID The discard of capital investment is represented by a simple aging process . A fraction of the capital is discarded each year . This fraction is the capital - invest- ment discard ...
Jay Wright Forrester. 3.27 Capital - Investment Discard CID The discard of capital investment is represented by a simple aging process . A fraction of the capital is discarded each year . This fraction is the capital - invest- ment discard ...
Page 73
... discard of capital investment and a repeat of the curve for capital investment . Until the year 2040 , because capital - investment generation is greater than capital- investment discard , capital investment is rising . The peak of ...
... discard of capital investment and a repeat of the curve for capital investment . Until the year 2040 , because capital - investment generation is greater than capital- investment discard , capital investment is rising . The peak of ...
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