World Dynamics1971 |
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Page 31
... relationship that might be found in a mental model of the corresponding part of the world system . The formal model ... relationships chosen for inclusion are important , that the omitted relationships are less important , and the " real ...
... relationship that might be found in a mental model of the corresponding part of the world system . The formal model ... relationships chosen for inclusion are important , that the omitted relationships are less important , and the " real ...
Page 35
... relationship such as the one sketched in Figure 3-1 represents the effect of one system input only - the influence of material standard of living on the birth rate . The relationship is most easily interpreted by assuming that all other ...
... relationship such as the one sketched in Figure 3-1 represents the effect of one system input only - the influence of material standard of living on the birth rate . The relationship is most easily interpreted by assuming that all other ...
Page 65
3.43 Capital - Investment - from - Quality Ratio CIQR The relationship in Figure 3-22 is introduced to keep the quality of life from material and the quality of life from food in a reasonable relationship to each other . The output CIQR ...
3.43 Capital - Investment - from - Quality Ratio CIQR The relationship in Figure 3-22 is introduced to keep the quality of life from material and the quality of life from food in a reasonable relationship to each other . The output CIQR ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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1970 conditions accumulation agricultural land assumed assumptions behavior birth rate normal birth-control program BRFM BRMM BRN1 capital investment CAPITAL UNITS CAPITAL UNITS/PERSON CAPITAL-INVESTMENT DISCARD capital-investment multiplier capital-investment ratio CAPITAL-INVESTMENT-IN-AGRICULTURE FRACTION cause Chapter CIAF CIGN1 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 resources natural-resource Natural-resource-usage rate negative loop NR=N NREM NREMT NRUN1 POLN1 POLAT POLCM pollution absorption pollution crisis pollution-absorption population and capital population density PRESENT ORIGINAL pressures ratio CIR RATIO DIMENSIONLESS result rise Section sector shortage social systems SQUARE KILOMETERS standard of living system levels TABHL TABLE LOOK TIME.K tion units per person UNITS/PERSON/YEAR UNITS/YEAR usage rate variable world model world population world system