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Due to fast development in high-technologh industry,competemce stress among manufactures in this industrial become stronger. Manufacturing firms which hope to exist in this environmental should acknowledge to use manufacturing flexibility to adapt environmental uncertainty . Thus,the purpose of this is using LISREL explore the causal relationship between environmental uncertainty,manufacturing flexibility and business performance. Manufacturing flexibility includes new product flexibility,volume flexibility,mix flexibility. Environmenatl uncertainty includesxconsumer uncertainty, suppler uncertianty of raw material ,competitor uncertainty as well as technology uncertainty. The important conclusion of this stidy are as follows:1.the causal relationship between environmental uncertainty and manufacturing flexibility (1)It has positive causal relationship between consumer uncertainty and volume flexibility,mix flexibility. It shows when manufacturing firm face greater consumer uncertainty ,they need great volume flexibilty and mix flexibility to adapt the uncertainty (2)It has positive causal relationship between suppler uncertainty of raw material and new product flexibility. This result shows the greater suppler uncertainty of raw material is need to deal with this uncertainty with the greater new product flexibility(3)It has positive causal relationship between competitor uncertainty and mix flexibility.this result shows the greater competitor uncertainty need greater mix flexibility This result shows the greater competitor uncertainty need greater mix flexibility to deal with the uncertainty.(4)It has positive relationship between technology uncertainty and new product flexibility. This shows when manufacture firms face greater technology uncertainty,it need greater new product flexibility to deal with the uncertainty. 2.The has positive casual relationship between manufacturing flexibility and business performance (1)It has positive causal relationship between new product flexibility and business performance. This result show manufacturing with have greater new product flexibility,attract consumers to buy their products and increase sale growth rate.(2)It has negative causal relationship between volume flexibility and business performance. The result shows if firm want to deal with unpredict consumer need,they have to adjust volume level to adapt uncertainty quickly. THerefore if would decrease business performance.(3)It has positive casual relationship between mix flexibilty and business performance. This shows if firms have competence to manufacture various products,they can provide a customized product which would increase market share and greater business performance.
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