World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 30
... effective - capital- investment ratio ECIR and the material standard of living MSL . The falling mate- rial standard of living MSL increases the birth - rate - from - material multiplier BRMM and increases birth rate BR ; but this ...
... effective - capital- investment ratio ECIR and the material standard of living MSL . The falling mate- rial standard of living MSL increases the birth - rate - from - material multiplier BRMM and increases birth rate BR ; but this ...
Page 36
... ratio that describes the extent to which effective capital investment per person is greater or less than the 1970 value . The value is defined as the effective - capital - investment ratio ECIR divided by the effective - capital - ...
... ratio that describes the extent to which effective capital investment per person is greater or less than the 1970 value . The value is defined as the effective - capital - investment ratio ECIR divided by the effective - capital - ...
Page 37
... capital - investment ratio CIR is a measure of all capital regardless of how it is used . This model system ... effective capital units per person to the 1970 capital units per person . ECIR.K = ( CIR.K ) ( 1 - CIAF.K ) ( NREM.K ) / ( 1 ...
... capital - investment ratio CIR is a measure of all capital regardless of how it is used . This model system ... effective capital units per person to the 1970 capital units per person . ECIR.K = ( CIR.K ) ( 1 - CIAF.K ) ( NREM.K ) / ( 1 ...
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