Journal of Textile Research ›› 2021, Vol. 42 ›› Issue (11): 151-158.doi: 10.13475/j.fzxb.20210102008

• Apparel Engineering • Previous Articles     Next Articles

Optimization decision of apparel product portfolio with modular production

HAN Shuguang1, YAN Weixiong2, HU Jueliang1()   

  1. 1. School of Science, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
    2. School of Fashion Design and Engineering, Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
  • Received:2021-01-11 Revised:2021-07-28 Online:2021-11-15 Published:2021-11-29
  • Contact: HU Jueliang E-mail:hujlhz@163.com

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Abstract:

In order to address the difficulty in making decisions for multi-style products faced by garment retailers, an optimization decision process was studied based on the garment product combination of modular production, and the garment fashion degree function under the modular production mode was constructed. Based on the maximization of consumer utility, a demand deterministic consumer choice model and a retailer profit model were established. The directed graph between vertically differentiated clothing products was designed to optimize the product set, and the product portfolio with the shortest path to maximize the retailer's profit was obtained. In addition, the profit distribution between multiple retailers and suppliers in the market is also discussed. The results show that the effect of using directed graph to optimize retailers' clothing product portfolio decision-making is obviously better than that of the exhaustive method. This method is expected to improve the decision-making level of garment retailers and suppliers and maximize profits.

Key words: modular production, apparel product portfolio, vertical differentiation, profit distribution

CLC Number: 

  • TS941

Tab.1

Parameter definition"

参数 表示含义
n n个垂直差异产品
m m个造型模块
xij 服装某部位i,款式j的时尚度
yij 服装某部位i,款式j的选择属性变量,取值为0或1
wj 产品j的时尚度
cj 产品j的成本
pj 产品j的零售价格
μ 顾客到达人数
Uj 消费者购买产品j获得的效用
θ 消费者心理价位,θ∈[ θ _, θ -]
αj 购买产品j的概率
f(θ) 消费者心理价位的密度函数
F(θ) 消费者心理价位的累积分布函数
S 产品集,即从n个垂直差异性中挑选一系列产品S={1,2,…,j,…,m}
S* 最优产品组合
π 零售商利润
η 零售商单位空间最大毛利润

Fig.1

Retailer selection decision"

Fig.2

Directed graph of apparel product set"

Tab.2

Effective path and profit"

有效路径 分类 单位利润/
(元·件-1)
(0,0)→(0,1)→(1,3)→(3,4)→(4,4) {1,3} 20.41
(0,0)→(0,2)→(2,3)→(3,4)→(4,4) {2,3} 26.41
(0,0)→(0,1)→(1,4)→(4,4) {1} 10.42
(0,0)→(0,2)→(2,4)→(4,4) {2} 13.86
(0,0)→(0,3)→(3,4)→(4,4) {3} 20.35

Fig.3

Profit distribution in market with short supply. (a)Directed graph of market fixed profit; (b)Directed graph of market actual profit"

Tab.3

Distribution of actual profits with short supply"

不同产品组合
类型的零售商		 单位利润/(元·件-1)
裙1 裙2 裙3
{1} 10.42 — —
{2} — 13.86 —
{3} — — 20.35
{1,3} 2.08 — 2.08
{2,3} — 4.41 4.41

Fig.4

Profit distribution in market with oversupply. (a)Directed graph of market fixed profit; (b)Directed graph of market actual profit"

Tab.4

Distribution of actual profits with oversupply"

不同产品组合
类型的零售商		 单位利润/(元·件-1)
裙1 裙2 裙3
{1} 1.60 — —
{2} — 1.69 —
{3} — — 1.25
{1,3} 0.50 — 0.50
{2,3} — 0.31 0.31
{1,2,3} 0.60 0 0.31
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