World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 12
... developed countries reaching the standard of living demonstrated by the present industrialized nations . The pollution and natural - resource load placed on the world environmental system by each person in an advanced country is ...
... developed countries reaching the standard of living demonstrated by the present industrialized nations . The pollution and natural - resource load placed on the world environmental system by each person in an advanced country is ...
Page 13
... developed a powerful approach to understanding the dynamics of complex sys- tems . The foundation was laid in the 1930's when Vannevar Bush built his differ- ential analyzer to solve the equations of certain simple engineering problems ...
... developed a powerful approach to understanding the dynamics of complex sys- tems . The foundation was laid in the 1930's when Vannevar Bush built his differ- ential analyzer to solve the equations of certain simple engineering problems ...
Page 94
... developed a population decline and a falling quality of life because natural resources were being exhausted . By assuming a technological solution , the system was freed from dependence on resources in Section 4.3 but a worse kind of ...
... developed a population decline and a falling quality of life because natural resources were being exhausted . By assuming a technological solution , the system was freed from dependence on resources in Section 4.3 but a worse kind of ...
Contents
Introduction | 1 |
Structure of the World System | 17 |
A World Model Structure and Assumptions | 31 |
Copyright | |
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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