Diffusion of Telecommunication Services in Turkey

This paper evaluates the forecasting ability of alternative product growth models for telecommunication services in Turkey. The variable exponential growth model better explains the diffusion process of fixed line services, suggesting that S-shaped models are not able to model the period of the maturity stage. However, the Gompertz model is superior in explaining the diffusion process of mobile line services. Results suggest that forecasting ability of growth curves depends on the differences in characteristics and the competitive structures of the markets.