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Journal of Korean Society for Quality Management 1995;23(1): 95-. |
Error Structure of Technological Growth Models A Study of Selection Techniques for Technological Forecasting Models |
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ABSTRACT |
The error structure of nonlinearized technological growth models, such as, the Pearl curve, the Gompertz curve and the Wei bull growth curve, has zero mean and a constant variance over time. Transformed models, however, like the linearized Fisher-Pry model. the linearized Gompertz growth curve, and the linearized Weibull growth curve have increasing variance from t = 0 to the inflection point. |
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