World DynamicsThe "system dynamics" approach to economics as developed at MIT. |
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Page 104
... influence on the system that merely combines with the other system influences . Such a program does not establish an absolute number of births per year that are independent of shifting forces within the remainder of the system . The ...
... influence on the system that merely combines with the other system influences . Such a program does not establish an absolute number of births per year that are independent of shifting forces within the remainder of the system . The ...
Page 113
... influence points are usually not in the locations where most people expect them to be . Furthermore , when a sensitive influence is identified , the chances are that a person guided only by intuition and judgment will alter the control ...
... influence points are usually not in the locations where most people expect them to be . Furthermore , when a sensitive influence is identified , the chances are that a person guided only by intuition and judgment will alter the control ...
Page 131
... influence to limit growth . Self - restraint originates in the legal , ethical , and value structures of society . The effect of self - restraint is to share the burden of limiting growth . In time , the three influences to inhibit ...
... influence to limit growth . Self - restraint originates in the legal , ethical , and value structures of society . The effect of self - restraint is to share the burden of limiting growth . In time , the three influences to inhibit ...
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