Trend Analysis of Pakistan Railways Based on Industry Life Cycle Theory

Table 7

Time series regression analysis for 1950–1999.

Coefficients	Estimate	Std. error	value
Intercept		0.1717710	−1.464
Year		0.0154574	8.299
Year^2		0.0002836	−9.625

, , and indicate 1%, 5%, and 10% significance level, respectively; ; .