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Qualitative data and error measurement in input-output analysis
Nijkamp, Peter, (1992)
On the Distance Dependence of the Price Elasticity of Telecommunications Demand; Meta-analysis, and Alternative Theoretical Backgrounds
Ouwersloot, Hans, (1997)
On the distance dependence of the price elasticity of telecommunications demand; review, analysis, and alternative theoretical backgrounds
Ouwersloot, Hans, (2001)