Journal of Systems Science and Information

Spatiotemporal Evolution and Linkage Analysis of Mutton Price in Xinjiang

Yulin YANG, Jian XU, Lean YU

Journal of Systems Science and Information, 2024, 12(5): 667-689. DOI: 10.21078/JSSI-2024-0032

Variable	Linear self-regression			Threshold Self-Regression (Lower Area)			Threshold self-regression (Upper Region)
Variable	Coefficient	Standard Error	T-value	Coefficient	Standard Error	T-value	Coefficient	Standard Error	T-value
C	1.282^*	0.701	1.828	1.898	1.622	1.170	−2.807	3.031	−0.926
NIUROU(−1)	1.059^***	0.108	9.851	1.938^***	0.189	10.280	−1.489^***	0.233	−6.395
NIUROU(−2)	0.254	0.157	1.615	−1.244^***	0.404	−3.077	2.045^***	0.427	4.790
NIUROU(−3)	−0.184	0.159	−1.156	0.547	0.494	1.106	−0.130	0.520	−0.250
NIUROU(−4)	−0.143	0.160	−0.892	−0.614	0.480	−1.279	0.426	0.505	0.842
NIUROU(−5)	0.010	0.161	0.062	0.330	0.451	0.732	−0.806^*	0.473	−1.705
NIUROU(−6)	−0.097	0.160	−0.608	0.604	0.440	1.373	−1.045^***	0.460	−2.270
NIUROU(−7)	0.054	0.160	0.336	−0.893^**	0.438	−2.040	0.923^***	0.460	2.006
NIUROU(−8)	0.088	0.160	0.549	0.189	0.434	0.436	0.266	0.455	0.585
NIUROU(−9)	0.025	0.160	0.154	0.065	0.398	0.163	0.314	0.421	0.748
NIUROU(−10)	−0.026	0.160	−0.162	−0.029	0.387	−0.074	−0.040	0.411	−0.098
NIUROU(−11)	−0.041	0.159	−0.256	0.152	0.376	0.403	−0.482	0.399	−1.208
NIUROU(−12)	−0.058	0.157	−0.368	−0.158	0.376	−0.420	−0.062	0.397	−0.156
NIUROU(−13)	−0.084	0.154	−0.544	−0.326	0.371	−0.879	0.355	0.391	0.906
NIUROU(−14)	0.122	0.104	1.178	0.400	0.272	1.474	−0.222	0.285	−0.778
$F$-value	455.8226			388.0489
$R^{2}$-value	0.98655			0.99421

Table 5 Estimates of the TAR model of the Xinjiang beef price sequence

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