Effects of Lot-Sizing Integration and Learning Effect on Managing Imperfect Items in a Manufacturer-Retailer Chain

Table 2

Summary of the sensitivity analysis of the parameters on the cost improvement.

Percentage change of 𝑅	TC𝑛	TC𝑐	Cost improvement (%)	Percentage change of 𝑡𝑃	TC𝑛	TC𝑐	Cost; improvement (%)
−60	12642	11464	9.32%	−60	12283	11078	9.81%
−40	12516	11328	9.49%	−40	12278	11072	9.82%
−20	12390	11192	9.67%	−20	12272	11065	9.84%
20	12138	10920	10.03%	20	12254	11043	9.88%
40	12012	10784	10.22%	40	12236	11024	9.91%
60	11886	10648	10.42%	60	12218	10996	10.00%
Percentage change of 𝑏	TC𝑛	TC𝑐	Cost; improvement (%)	Percentage change of 𝛾	TC𝑛	TC𝑐	Cost; improvement (%)
−60	12240	10082	17.63%	−60	12217	9472	22.47%
−40	12244	10312	15.78%	−40	12243	10151	17.09%
−20	12259	10621	13.36%	−20	12252	10527	14.08%
20	12278	11510	6.26%	20	12282	11857	3.46%
40	12300	11702	4.86%	40	12303	12107	1.59%
60	12346	11885	3.73%	60	12706	12646	0.47%
Percentage change of 𝛽	TC𝑛	TC𝑐	Cost; improvement (%)	Percentage change of 𝐹	TC𝑛	TC𝑐	Cost improvement (%)
−60	12245	11050	9.76%	−60	12714	12590	0.98%
−40	12251	11052	9.79%	−40	12564	12212	2.80%
−20	12258	11054	9.82%	−20	12414	11634	6.28%
20	12270	11058	9.88%	20	12114	10478	13.51%
40	12277	11060	9.91%	40	11964	9900	17.25%
60	12283	11062	9.94%	60	11814	9322	21.09%