Fixed telephone lines per 100 persons

INFRATELE = fixed telephone lines per 100 persons

GDPPCP = gross domestic product per capita at purchasing power parity in thousand constant 2005 dollars

• uses extrapolative formulation – parameters are hard coded
• no shift factor
• multiplier: infratelem
• no targeting parameters
• when ICTMOBIL reaches 30, if INFRATELE > 2.5 value will fall to level of 2.5 over time period given by infrateledtfp: if INFRATELE < 2.5, then can continue to grow
• cross-sectional data, OLS regression, R-squared = 0.70

Mobile telephone subscriptions per 100 persons

ICTMOBIL = mobile phone subscriptions per 100 persons

GDPPCP = gross domestic product per capita at purchasing power parity in thousand constant 2005 dollars

GOVEREGQUAL = government regulatory quality using the World Bank WGI scale, shifting it 2.5 points so that it runs from 0-5 instead of from -2.5 to 2.5

• additive shift factor: MOBILshift; converge upward over 100 years, no convergence downward
• multiplier: ictmobilm
• targeting parameters: ictmobilsetar. ictmobilseyrtar (no targeting parameters for absolute targets)
• tech shift parameters: ictmobiltecinflection, ictmobiltechighrt, ictmobilteclowrt
• saturation level: ictmobilsaturation
• value is not allowed to decline in the absence of a target or multiplier or lack of finance for maintenance
• cross-sectional data, OLS regression, R-squared = 0.53

Fixed broadband subscriptions per 100 persons

ICTBROAD = fixed broadband subscriptions per 100 persons

GDPPCP = gross domestic product per capita at purchasing power parity in thousand constant 2005 dollars

GOVEREGQUAL = government regulatory quality using the World Bank WGI scale, shifting it 2.5 points so that it runs from 0-5 instead of from -2.5 to 2.5

• additive shift factor: BROADshift; converges over 100 years (both upwards and downwards)
• multiplier: ictbroadm
• targeting parameters: ictbroadsetar, ictbroadseyrtar (no targeting parameters for absolute targets)
• urbanization increases growth using parameters ictbroadurimpmin and ictbroadurimpmax
• as INFRATELE falls, this boosts growth of fixed broadband using the parameter ictbroadfromtelem
• tech shift parameters: ictbroadtecinflection, ictbroadtechighrt, ictbroadteclowrt
• saturation level: given by ictbroadcap (not in common block, currently hard coded as 50)
• value is not allowed to decline in the absence of a target or multiplier or lack of finance for maintenance
• cross-sectional data, OLS regression, R-squared = 0.74

Mobile broadband subscriptions per 100 persons

ICTBROADMOBIL = mobile broadband subscriptions per 100 persons

GDPPCP = gross domestic product per capita at purchasing power parity in thousand constant 2005 dollars

GOVEREGQUAL = government regulatory quality using the World Bank WGI scale, shifting it 2.5 points so that it runs from 0-5 instead of from -2.5 to 2.5

• additive shift factor: BroadMOBILshift; converge upward over 100 years, no convergence downward
• multiplier: ictbroadmobilm
• targeting parameters: ictbroadmobiltrgtval, ictbroadmobiltrgtyr, ictbroadmobilsetar, ictbroadmobilseyrtar
• tech shift parameters: ictbroadmobiltecinflection, ictbroadmobiltechighrt, ictbroadmobilteclowrt
• saturation level: ictmobilsaturation
• value is not allowed to exceed ICTMOBIL
• value is not allowed to decline in the absence of a target or multiplier or lack of finance for maintenance
• cross-sectional data, OLS regression, R-squared = 0.70