Table 6 Estimation results of GRACH...

Table 6

Estimation results of GRACH (1,1) model for potatoes price

	Coefficient	Standard error	z-statistic	Prob
Mean equation
Constant	0.093866***	0.020949	4.480667	0.0000
Variance equation
Constant	0.035902***	0.011137	3.223592	0.0013
RESID(−1)ˆ2	0.413,469***	0.203434	2.032450	0.0421
GARCH(−1)	−0.333,808	0.280911	−1.188305	0.2347
ARCH-LM test
F-statistic	1.230710 (0.2732)
Obs*R-squared	1.251189 (0.2633)

	Coefficient	Standard error	z-statistic	Prob
Mean equation
Constant	0.093866***	0.020949	4.480667	0.0000
Variance equation
Constant	0.035902***	0.011137	3.223592	0.0013
RESID(−1)ˆ2	0.413,469***	0.203434	2.032450	0.0421
GARCH(−1)	−0.333,808	0.280911	−1.188305	0.2347
ARCH-LM test
F-statistic	1.230710 (0.2732)
Obs*R-squared	1.251189 (0.2633)

Note(s): - Numbers in parenthesis are p-value, *** indicates statistical significance at 1% level

Source(s): Compiled by researcher depending on e-views, See Table A1 in appendix, http://www.fao.org/faostat/en/#data/PP

Sharing Unavailable