International Futures:  Example Syllabus - Materials courtesy of Donald Borock

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International Futures Simulation Variable List

This parameter/variable listing includes all initial conditions and parameters, as well as variables that the model computes as it runs.

Parameter/Variable SectorAbbreviations:

WOR: World or Global; data for world or global variables.
REG: regions; different nations, regions, or groups can be selected.

Change/Non-Change Characteristics:  P = Printable  I = Initial Change Variable S = Series (Time) Change
If a parameter/variable is assigned a "P" only, it means that this variable is a computed variable and it cannot be changed.
 
 
Sub-sector Characteristics of Some of the Parameters and Variables

ENE (energy): oil, gas, coal, hydro, nuclear, other renewable.
ENL (energy, long list): oil, gas, coal, hydro, nuclear, synoil, other renewable.
ENS (energy, short list): oil, gas, coal, hydro.
FTY (food type): crops, meat
GOV (government category): military, health, education, other, foreign aid
LND (land): crops, grazing, forest, other, urban.
SEC (economic sector): agriculture, energy, materials, manufacturing, services

    Use the following letters to locate parameters/variables.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

 
 
SECTOR CHANGE parameter/ DEFINITION MEASURE
    VARIABLE    
         
WOR P/I/S actreaon Action/Reaction Switch (1=On, 0=Off) Switch
WOR P/I/S agconv Convergence time of ag demand to table function Years
REG-FTY P AGDEM Agricultural demand Million Metric Ton (MMT)
REG-FTY P/I/S agdemm Agricultural demand multiplier Multiplier Base 1
REG P/I/S aginvm Agricultural investment multiplier Multiplier Base 1
REG-FTY P/I AGM Agricultural imports Million Metric Ton (MMT)
WOR P/I/S agon Parameter to turn on economic/agricultural linkages Switch
REG-FTY P AGP Agricultural production Million Metric Ton (MMT)
REG-FTY P/I AGX Agricultural exports Million Metric Ton (MMT)
REG P AID Net foreign aid, billion dollars Billion Dollars
WOR P/I/S aidlp Loan portion of foreign aid Ratio
REG P/I/S aidv Foreign aid giving as -% of GDP or receipt as +% of GDP Ratio
REG P/I/S ally Alliance membership Switch
REG P/I/S aquacul Aquaculture fish production Million Metric Ton (MMT)
REG P BIRTHS Births Million People
REG P C Private consumption Billion Dollars
WOR P/I/S calmax Maximum calories needed per day per person Calories
WOR P/I/S calmeatm Maximum portion of calories from meat No Units
REG-SEC P/I CAPUT Capacity utilization Ratio
WOR P/I/S caputtar Target value for capacity utilization No Units
WOR P/I/S CAR1995 Carbon weight of atmosphere, 1995 Billion Tons
WOR P/I/S carabr Atmospheric carbon absorbed yearly by oceans/forests Billion Tons
REG P CARANN Annual carbon emissions from fossil fuels Billion Tons
REG P/I/S carbtax Carbon tax Dollars/Ton
WOR P/I/S carforst Carbon generated by deforestation Tons/Million Hectares
WOR P/I/S carfuel1 Carbon generated by burning oil Tons/Billion Barrels Oil Equivalent (BBL)
WOR P/I/S carfuel2 Carbon generated by burning natural gas Tons/Billion Barrels Oil Equivalent (BBL)
WOR P/I/S carfuel3 Carbon generated by burning coal Tons/Billion Barrels Oil Equivalent (BBL)
WOR P/I/S carprein Carbon weight of atmosphere, pre-industrial Billion Tons
REG P/I CBR Crude birthrate  Per Thousand
REG P/I CDALF Cobb-Douglas alpha No Units
WOR P/I/S cdalfbet Cobb-Douglas alpha calculation, beta No Units
WOR P/I/S cdalfint Cobb-Douglas alpha calculation, intercept No Units
WOR P/I/S cdmf Civilian damage factor No Units
REG P/I CDR Crude death rate per thousand Per Thousand
REG P CIVDM Civilian damage from war;multiplier for population & capital stock Economic Multiplier
REG P/I CLAVAL Calories available All Population/Day
REG P CLD Cost of land development, thousand dollars per hectare Thousand Dollars/Hectare
REG P/I CLNEED Calories needed All Population/Day
REG P/I/S clnf Calorie need factor Multiplier Base 1
REG P CLPC Regional calories per capita Per Capita/Day
WOR P/I/S clsexp Starvation from calorie shortage parameter No Units
WOR P CO2PER Percentage increase in atmospheric CO2, pre-industrial base Percent
WOR P/I/S co2prein Atmospheric CO2, pre-industrial base Parts per million (PPM)
WOR P CO2PPM Atmospheric CO2 Parts per million (PPM)
REG P/I CONTRUSE Contraception use, percent of fertile women Percent
REG P/I/S contrusm Multiplier on contraception use Multiplier Base 1
REG P CPOW Conventional military power, index Index
WOR P/I/S cpowdf Conventional power damage factor No Units
REG P/I/S cpowf Conventional power factor; converts military spending to conventional power No Units
WOR P CRA Share of consumption in gross domestic product Ratio
REG-SEC P/I CS Private consumption by sector Billion Dollars
REG P/I CURACT Cumulative current account Billion Dollars
WOR P CWAR Conventional war (0=no;1=yes) Switch
REG P/I/S cwarbase Conventional war base probability Probability
WOR P/I/S cwarf Conventional war factor; converts extra military expenditures into war probability No Units
WOR P CWARPB Conventional war probability Probability
WOR P/I/S cwarsv Conventional war severity parameter, portion of weaponry used Ratio
REG P DEATHS Deaths Million People
WOR P/I/S dkl Depreciation coefficient for land Ratio
WOR P/I/S drcpow Annual depreciation rate of conventional power Ratio
WOR P/I/S drnpow Annual depreciation rate of nuclear power Depr Rate
WOR P/I/S dstl Desired stock level as portion of stock base Ratio
WOR P/I/S dstlen Desired energy stock level as portion of stock base Ratio
WOR P/I/S ecf Elasticity of energy capacity utilization No Units
WOR P/I/S ehw Energy historical weight factor for impact of prices on demand Ratio
WOR P/I/S elagmpr1 Elasticity of agricultural imports with price, 1st Order No Units
WOR P/I/S elagmpr2 Elasticity of agricultural imports with price, 2nd Order No Units
WOR P/I/S elagxpr1 Elasticity of agricultural exports with price, 1st Order No Units
WOR P/I/S elagxpr2 Elasticity of agricultural exports with price, 2nd Order No Units
REG P/I/S elasac Elas of agricultural yield with increases in atmospheric CO2 No Units
WOR P/I/S elascd Crop food demand elasticity with prices No Units
REG P/I/S elasde Elasticity of energy demand with price No Units
WOR P/I/S elasdi Elasticity of energy discoveries with prices No Units
WOR P/I/S elased Responsiveness of labor efficiency to education expenditures No Units
WOR P/I/S elashc Responsiveness of mortality to health care expenditures No Units
WOR P/I/S elasit Responsiveness of total domestic demand to stocks No Units
WOR P/I/S elasmd Meat demand elasticity with prices No Units
REG-ENE P/I/S elass Responsiveness of energy investment to profit No Units
WOR P/I/S elaszs Elasticity of capacity utilization to stock level No Units
WOR P/I/S elcavl Elasticity of calorie need with approach to saturation level No Units
WOR P/I/S elenpr Elasticity of energy investment with stock levels No Units
WOR P/I/S elenpr2 Elasticity of energy investment with stock levels, 2nd order No Units
WOR P/I/S elerca1 Elasticity of exchange rate with capital account/GDP, 1st Order No Units
WOR P/I/S elerca2 Elasticity of exchange rate with capital account/GDP, 2nd Order No Units
WOR P/I/S elexpr1 Elasticity of consumption with price level, 1st order No Units
WOR P/I/S elexpr2 Elasticity of consumption with price level, 2nd order No Units
WOR P/I/S elfdpr1 Food production elasticity with profit, 1st Order No Units
WOR P/I/S elfdpr2 Food production elasticity with profit, 2nd order No Units
WOR P/I/S elglinpr Grazing land use intensity elasticity with prices No Units
WOR P/I/S eliasp1 Elasticity of agricultural investment split with return, 1st order No Units
WOR P/I/S eliasp2 Elasticity of agricultural investment split with return, 2nd order No Units
WOR P/I/S elinag1 Elasticity of agricultural investment with profit, 1st order No Units
WOR P/I/S elinag2 Elasticity of agricultural investment with profit, 2nd order No Units
WOR P/I/S elinst1 Elasticity of sectoral investment to stock level, 1st Order No Units
WOR P/I/S elinst2 Elasticity of sectoral investment to stock level, 2nd Order No Units
WOR P/I/S elinvpr Elasticity of investment with price level No Units
WOR P/I/S elmorinc Elasticity of mortality with income share No Units
WOR P/I/S ellvhpr1 Livestock herd elasticity to prices, 1st order No Units
WOR P/I/S ellvhpr2 Livestock herd elasticity to prices, 2nd order No Units
WOR P/I/S elmpr1 Elasticity of imports with price, 1st Order No Units
WOR P/I/S elmpr2 Elasticity of imports with price, 2nd Order No Units
WOR P/I/S elndpow Elasticity of nuclear damage with nuclear power No Units
WOR P/I/S elprst1 Elasticity of prices with stock level, 1st Order No Units
WOR P/I/S elprst2 Elasticity of prices with stock level, 2nd Order No Units
WOR P/I/S eltfrcon Elasticity of Total Fertility Rate with contraception use No Units
WOR P/I/S eltfrden Elasticity of Total Fertility Rate minimum with population density No Units
WOR P/I/S eltfrinc Elasticity of Total Fertility Rate with income share No Units
WOR P/I/S eltfrtfr Elasticity of Total Fertility Rate with Total Fertility Rate below 2.0 No Units
WOR P/I/S elxpr1 Elasticity of exports with price, 1st Order No Units
WOR P/I/S elxpr2 Elasticity of exports with price, 2nd Order No Units
WOR P/I/S emd Responsiveness of import demand to prices No Units
WOR P/I/S emd2 Responsiveness of import demand to prices, 2nd order No Units
WOR P/I/S enconv Convergence time of energy demand to table function Years
REG P ENDEM Energy demand Billion Barrels of Oil Equivalent (BBL)
REG P/I/S endemm Energy demand multiplier Multiplier Base 1
WOR P/I engel Engel coefficients in LES system for personal consumption No Units
REG P/I/S eninvm Energy Investment Multiplier Multiplier Base 1
REG P/I ENM Energy imports Billion Barrels of Oil Equivalent (BBL)
WOR P/I/S enon Parameter that turns on economy link to energy (On=1/Off=0) Switch
REG-ENE P/I ENP Energy production Billion Barrels of Oil Equivalent (BBL)
REG-ENE P/I/S enpm Energy production multiplier Multiplier Base 1
REG P/I/S ENPRI Energy price Dollars/Barrel
REG P/I/S enprix Exogenous energy price when set above 0.0 Dollars/Barrel
REG-ENE P/I ENPRR Energy production growth rate Ratio
REG P ENRGDP Energy demand ratio to GDP Billion Barrels of Oil Equivalent/Billion Dollars
REG P ENSHO Energy shortage Billion Barrels of Oil Equivalent (BBL)
REG P ENST Energy stocks Billion Barrels of Oil Equivalent (BBL)
REG P/I/S entl Energy trade limit Billion Barrels of Oil Equivalent (BBL)
REG P/I ENX Energy exports Billion Barrels of Oil Equivalent (BBL)
WOR P/I/S epra Energy price responsiveness to shortages No Units
WOR P/I/S eprafs Second-order energy price response to stock levels No Units
REG-ENE P/I/S eprodr Energy production growth rate Growth Rate
REG P EPROFITR Energy profit ratio index No Units
WOR P/I/S eprohw Energy historical weight for profits in investment Ratio
WOR-ENL P/I/S etechadv Annual decrease in cost of energy production Rate
REG P/I/S ethnic1 Percentage of population in largest ethnic group Percent
REG P/I/S ethnic2 Percentage of population in 2nd largest ethnic group Percent
WOR P/I/S exc Responsiveness of export capacity to prices No Units
WOR P/I/S exc2 Responsiveness of export capacity to prices, 2nd order No Units
REG P EXRATE Real exchange rate index,initial year equals 1 Ind Base 1
REG P FDEM Food demand Million Metric Ton (MMT)
REG P/I FEDDEM Feed demand Million Metric Ton (MMT)
REG P FISH Fish production, ocean and mariculture Million Metric Ton (MMT)
REG P/I/S forestm Multiplier on forest area Multiplier Base 1
REG-FTY P FPRI Food prices per ton Dollars per Ton
WOR P/I/S fpricr1 Crop price change with stock level, first order No Units
WOR P/I/S fpricr2 Crop price change with stock level, second order No Units
WOR P/I/S fprihw Historical weight factor for food prices Ratio
WOR P/I/S fprimt1 Meat price change with stock level, first order No Units
WOR P/I/S fprimt2 Meat price change with stock level, second order No Units
REG P FPROFITR Food profit ratio to initial food profit Ind Base 1
REG P/I/S FREEDOM Freedom House freedom indicator Index
REG P/I/S freedomm Freedom multiplier Multiplier Base 1
REG-FTY P FSTOCK Food stocks Million Metric Ton (MMT)
REG P G Government expenditures Billion Dollars
REG-GOV P GDS Government expenditures by destination Billion Dollars
REG P GDP Gross domestic product Billion Dollars
REG P GDPP Gross domestic product, billion dollars PPP Billion Dollars
REG P GDPPC GDP per capita Thousand Dollars
REG P GDPPCP GDP per capita, thousand dollars PPP Thousand Dollars
REG P GDPR GDP annual growth rate Growth Rate
REG P/I GEM UN Development Program's gender empowerment measure Index
REG-GOV P/I/S gk Government expenditure shares by destination Ratio
REG P GLDCAP Million Metric Tons of grain equivalent of grazing land hectares MMT/Hectare
WOR P/I/S glocom Global community multiplier Multiplier Base 1
REG-SEC P/I GS Govt expenditures by sector of origin, billion dollars Billion Dollars
WOR P/I hwf Historical weight factor for expected economic growth Ratio
REG P I Investment, billion dollars Billion Dollars
REG P/I/S ialk Investment in agriculture, land share Ratio
REG-SEC P IDS Investment by destination Billion Dollars
WOR P/I/S iglnk Coefficient linking tax rate to investment level No Units
REG P/I/S igdpr Initial GDP growth rate, decimal form Growth Rate
WOR P/I/S ilvhrg Livestock herd basic growth rate Growth Rate
WOR P/I/S imark Initial price markup over cost Ratio
REG P INAG Investment need in agriculture Billion Dollars
REG P/I/S INCSHR Percentage share in national income of poorest 20% Percent Share
REG P/I/S incshrm Multiplier on income share of poorest 20% Multiplier Base 1
REG P/I INDEM Industrial food demand Million Metric Ton (MMT)
REG P INFMOR Infant mortality rate per 1,000 live births Per Thousand
WOR P/I/S infmormax Infant mortality maximum for PQLI calculation Per Thousand
REG P/I/S invm Multiplier on investment Multiplier Base 1
REG-SEC P/I Invs Investment by origin sector Billion Dollars
REG P IRA Share of investment in gross domestic product Ratio
REG P KAG Capital in agriculture (not including land) Billion Dollars
REG-SEC P KS Capital by economic sector Billion Dollars
REG P LAB Labor Million People
REG-SEC P LABS Labor by sector Milllion People
REG P/I/S lapopr Labor participation rate Ratio
REG-LND P/I LD Land Million Hectare
WOR P/I/S ldwf Land withdrawal factor with population growth No Units
REG P LEFMG Labor efficiency multiplier from government No Units
REG P LIFEXP Life expectancy Years
WOR P/I/S lifexpmin Life expectancy minimum for PQLI calculation Years
WOR P/I/S lintr Loan interest rate Ratio
REG P LIT Literacy, percentage of population Percent
WOR-ENE P/I/S lke Lifetime of energy capital, years Years
WOR P/I/S lks Lifetime of capital, years Years
REG P LOANR Loan repayment amount per year Billion Dollars
REG P/I/S LOSS Proportion of food production lost Ratio
REG P/I/S lossm Multiplier on food production lost Multiplier Base 1
WOR P/I lvcf Livestock calorie conversion factor No Units
REG P/I LVHERD Livestock herd Million Metric Ton (MMT)
REG P M Imports Billion Dollars
REG P MALNCHIL Malnourished children Million
REG P/I MALNCHP Malnourished children as percent Percent
WOR P/I/S meatmax Maximum meat consumed per year per person Metric Tons (MMT)
WOR P/I/S mhw Import historical weight factor Ratio
WOR P MILSPM2 Military spending multiplier of alliance 2 from action-reaction equation No Units
WOR P MODYEAR Year to which model has been run Year
WOR P/I/S mortconv Convergence time of mortality to table function Years
REG P/I/S mortm Multiplier on mortality (deaths) Multiplier Base 1
REG P MORTMG Mortality multiplier from government expenditures No Units
REG-SEC P/I MS Imports by sector Billion Dollars
REG P/I/S nmilf Portion of military spending directed to nuclear forces (0 to 1) Ratio
REG P/I NPOW Nuclear military power, warheads Warheads
WOR P/I/S npowf Nuclear power factor, megatons/billion Dollars expenditure Megatons/Billion Dollars
WOR P/I/S nsdiv GDP per capita dividing North and South Thousand Dollars
WOR P NSGAPA Absolute difference between GDPs/capita in North and South Thousand Dollars
WOR P NSGAPR Ratio of GDPs/capita in the North to those in South Ratio
WOR P NSPQLI Ratio of North to South PQLI/capita Ratio
WOR P NWAR Nuclear war (0=no;1=yes) Switch
WOR P/I/S nwarf Nuclear war factor; converts conventional war into probability of nuclear war No Units
REG P/I/S NWARPB Nuclear war probability Probability
WOR P/I/S nwarsv Nuclear war severity parameter, portion of weaponry used Ratio
WOR P/I/S ofscth Ocean fish catch Million Metric Ton (MMT)
WOR P OILGPR Oil and gas proportion of global energy Ratio
WOR P/I/S pf1 Power factor 1; relative contribution of pop to power index Multiplier Base 1
WOR P/I/S pf2 Power factor 2; relative contribution of GDP to power index Multiplier Base 1
WOR P/I/S pf3 Power factor 3; relative contrib of conv mil power to index Multiplier Base 1
WOR P/I/S pf4 Power factor 4; relative contrib of nuc power to power index Multiplier Base 1
REG-SEC P PFD Production for final demand Billion Dollars
WOR P/I/S polconv Convergence time of freedom to table function Years
REG P/I POP Population Million People
REG P POPGT65 Population, aged more than 65 years Million People
REG P POPLE15 Population, aged 15 years or less Million People
REG P POPR Population growth rate Growth Rate
REG P POWER Aggregate power index Index
REG P PPPCONV Purchasing power parity conversion factor Ratio
REG P PQLI Physical quality of life index Index Maximum = 100
REG-SEC P PRI Prices,index values Index Base 1
WOR P/I/S prodme Elasticity of production with imports of manufactures (0 to .5) No Units
REG-ENS P/I/S prodtf Minimum reserves to production ratio Ratio
REG P/I/S protecm Increase or decrease in price of imports Multiplier Base 1
REG-ENL P/I/S qe Energy capital/output ratio Dollars/Barrel
REG-ENL P/I/S qem Energy capital/output ratio multiplier Multiplier Base 1
WOR-ENS P/I RDI Initial discovery rate Billion Barrels of Oil Equivalent (BBL)
WOR-ENS P/I/S rdinr Discovery rate basic annual increment Billion Barrels of Oil Equivalent (BBL)
REG P/I/S rdm Discovery rate multiplier Multiplier Base 1
REG P/I/S reac Reactivity in action-reaction process Multiplier Base 1
WOR P/I/S repayr Repayment rate on loans, portion of outstanding balance Ratio
REG-ENS P/I RESER Known reserves Billion Barrels of Oil Equivalent (BBL)
REG-ENS P/I/S resor Ultimate resources Billion Barrels of Oil Equivalent (BBL)
REG-ENS P/I/S resorm Energy resource multiplier Multiplier Base 1
REG P/I RETRAT Ratio of return on land/yield investments Ratio
REG P/I/S rfssh Regional fish catch share Ratio
REG P SDEATH Starvation deaths Million
WOR P/I/S slr Livestock slaughter rate Ratio
WOR P SMAN Southern share of global manufacturing Percent
WOR P/I/S squeez Switch for energy shortage economic impact Switch
REG-SEC P ST Stocks Billion Dollars
REG P/I/S TAXRA Central government tax rate Ratio
REG P/I/S taxram Central government tax rate multiplier Multiplier Base 1
WOR P/I/S tconr Time-related increase in contraception use No Units
REG P/I/S techadd Technological growth additive factor Ratio
WOR P/I/S techconv Convergence time of tech growth to table function Years
REG P TECHRATE Predicted annual growth in technology Annual Rate
WOR P/I/S termtrm Terms of trade multiplier (higher is better for South) Multiplier Base 1
REG P TERMTR Terms of trade,computed (higher is better for South) No Units
REG P/I TFR Total fertility rate (births per woman over lifetime) Births
WOR P/I/S tfrconv Convergence time of total fertility rate to table function Years
REG P/I/S tfrm Total fertility rate multiplier Multiplier Base 1
WOR P/I/S tfrmin Total fertility rate minimum Births
REG P/I/S TGRLD Target growth in cultivated land Growth Rate
REG P/I/S TGRYL Target growth in yield Growth Rate
WOR P THREAT Threat index Base 1
WOR P/I/S tleaderr Technological growth rate of system leader Rate
WOR P/I/S tmortr Time-related reduction in mortality No Units
REG P TRADEBAL Trade balance Billion Dollars
WOR P/I/S trademax Maximum portion of base allowed into trade Ratio
WOR P/I/S ttfrr Time-related reduction in total fertility rate No Units
REG-SEC P/I/S VADD Value Added by sector Billion Dollars
WOR-FTY P/I WAP World agricultural price $1,000/Ton
WOR-FTY P WAPRO World agricultural production Million Metric Ton
REG P/I/S watres Renewable water resources per year Billion Cubic Meters/year
REG P WATUSE Renewable water usage per year Billion Cubic Meters/year
REG P/I WATUSEPC Renewable water usage per capita per year Million Cubic Meters/year
WOR P WCLPC World calories per capita Calories/Capita
WOR P WCPOW World conventional power Index
WOR-ENE P WENP World energy production, BBL Billion Barrels of Oil Equivalent (BBL)
WOR-ENE P/I/S wenpf World energy production multiplier Multiplier Base 1
WOR P WEP World energy price per BBOE, including carbon taxes Dollars/Billion Barrels of Oil Equivalent
WOR P WFORST World forest area Million Hectares
WOR P WGDP World GDP Billion Dollars
WOR P WGDPPC World GDP per capita Thousand Dollars
WOR P WLIFE World life expectancy Years
WOR P WLIT World literacy Percent
WOR P WNPOW World nuclear power Megatons
WOR P WP World price,index values Index
WOR P/I/S wpcommun War probability elasticity with global community level No Units
WOR P/I/S wpfrejnt War probability elasticity with joint freedom level No Units
WOR P/I/S wpmilact War probability elasticity with military burden of actor No Units
WOR P WPOP Global population Million People
WOR P WPOPR Global population growth rate Growth Rate
WOR P/I/S wppowdif War probability elasticity with power differential No Units
WOR P/I/S wppowmax War probability power differential maximum impact No Units
WOR P/I/S wppowths War probability power differential impact threshold No Units
REG P WPQLI World physical quality of life index Index Maximum = 100
WOR P WPROD World production by sector, percent share of total global product Percent
WOR P/I/S wpthract War probability elasticity with threat level of actor No Units
WOR P/I/S wpthrtar War probability elasticity with threat level of target No Units
WOR-ENS P WRESER World known reserves Billion Barrels of Oil Equivalent (BBL)
WOR-ENS P WRESOR World ultimate resources Billion Barrels of Oil Equivalent (BBL)
WOR-FTY P WSTK World food stock Million Metric Ton (MMT)
WOR P WTEMP Average annual global temperature Degrees Centigrade
WOR P WTRADE World trade as a percentage of world GDP Percent
REG P X Exports Billion Dollars
REG P/I Xdebt Total external debt Billion Dollars
WOR P/I/S xhw Export historical weight factor Ratio
REG-SEC P/I XS Exports by sector Billion Dollars
REG P/I/S xshift Proportional increase or decrease in exports Ratio
REG P/I YL Agricultural yield Tons/Hectar
WOR P/I/S ylexp Exponent in saturating yield function No Units
WOR P/I/S ylhw Historical weight factor for yield Ratio
REG P/I/S ylm Yield factor or multiplier Multiplier Base 1
WOR P/I/S ylmax Agricultural yield maximum Tons/Hectar
REG-SEC P/I ZS Gross production by sector Billion Dollars
International Futures Simulation Variable List

Last Updated on 9/1/1999
By Donald M. Borock