Analysis and Prediction on Vehicle Ownership Based on an Improved Stochastic Gompertz Diffusion Process

Table 3

Prediction standard errors of improved SGDP and general Gompertz in sample countries.

	General Gompertz	Improved SGDP
US	34.103	5.721
UK	41.671	5.702
Japan	23.753	4.729
Korea	4.267	4.956