A Three-Layer Supply Chain EPQ Model for Price- and Stock-Dependent Stochastic Demand with Imperfect Item Under Rework

Journal of Uncertainty Analysis and Applications

Table 3 Sensitivity analysis for various parameters

Paramter	% c h a n g e	\(T_{R}^{\ast }(year)\)	\(t_{s}^{\ast }(year)\)	\( t_{m}^{\ast }=T_{s}^{\ast }(year)\)	T ^∗(y e a r)	T C ^∗	% c h a n g e o f T C
	−20	0.806	4.032	4.838	8.06	3170.33	−70.37
P _s	−10	0.513	2.282	3.081	5.135	8583.53	−19.78
	10	0.255	0.926	1.528	2.54	11641.7	8.79
	20	0.192	0.6397	1.151	1.919	12104.5	13.12
	−20	0.118	0.378	0.709	1.181	12505.6	16.87
P _m	−10	0.21	0.755	1.258	2.097	12020.8	13.34
	10	0.564	2.483	3.386	5.643	7470.6	−30.18
	20	0.859	4.123	5.154	8.589	435.84	−95.93
	− 20	0.712	2.85	4.275	7.125	2904.13	−72.86
P ₁	−10	0.486	1.944	2.916	4.86	8529.98	−20.28
	10	0.263	1.052	1.578	2.63	11684.7	9.2
	20	0.199	0.799	1.199	1.998	12173.6	13.77
	−20	0.255	1.018	1.527	2.545	12030.2	12.43
a	−10	0.307	1.229	1.844	3.073	11443.9	6.95
	10	0.3898	1.559	2.339	3.898	9822.67	−8.2
	20	0.423	1.690	2.535	4.225	8830.38	−17.48
	−20	0.226	0.902	1.353	2.255	12077.3	12.87
b	−10	0.286	1.142	1.713	2.855	11534.7	7.79
	10	0.425	1.699	2.549	4.248	9478.1	−11.42
	20	0.505	2.021	3.032	5.053	7750.16	−27.57
	−20	0.272	1.086	1.629	2.715	11608.4	8.48
θ	−10	0.313	1.251	1.877	3.128	11179.1	4.47
	10	0.389	1.556	2.334	3.89	10180	−4.86
	20	0.424	1.697	2.546	4.243	9623.54	−10.06
	−20	0.226	0.904	1.356	2.26	11862.2	10.86
λ	−10	0.285	1.138	1.707	2.845	11370	6.26
	10	0.429	1.717	2.576	4.293	9811.75	−8.31
	20	0.517	2.067	3.101	5.168	8664.94	−19.02