||Previous literatures examine the direct effect of the IPO on the firm foundation. Recently, some researches examine if the IPOs announcement has industry-wide effect. We broaden the investigation through the whole supply chain by examining the wealth effect of IPOs announcement on the rivals, customers and suppliers. This paper finds that when the rivals are under the information effect, the customers and suppliers will suffer positive effect. Otherwise, when the rivals are under the competition effect, the customers and suppliers will suffer negative effect. Moreover, the size of the IPO firm is significantly positively related with the CAR of the rivals, customers and suppliers. We conjecture that there are still some variables which would be more powerful in explaining the abnormal return of the rivals, customers and suppliers.|
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