本研究探討多數公司在首次公開發行(IPO)時的折價現象,是否會受財報上的研發費用變動率所影響。根據文獻指出,公司揭露的研發費用越多,首次公開發行時的折價越大,因此本研究主要探討公司在首次公開發行時是否會藉由提高研發費用,提高投資人對於公司價值的興趣,進而造成上市首日需求大於供給,產生大幅度的折價。本研究也進而探討當公司價值經過市場充分的反應之後,IPO當日所造成的折價是否與IPO前研發費用的調整有關聯性。 本研究透過IPO前兩年研發費用變化率與IPO折價幅度之間的關係,發現在高研發費用產業中,研發費用變化率越高,IPO折價幅度越大。另外,研發費用變化率越大,IPO後90天內的折價幅度也越大。相較於之前文獻只針對研發費用對IPO折價幅度之影響,本研究進一步的發現研發費用變化率才是造成高研發費用產業發行折價的主要因素。
The objective of this research is to investigate how the R&D expenditures change rate before the IPO will affect the IPO underpricing. According to the prior research, R&D is positively correlated with underpricing and their long-term performance. Here, we identify that it is the R&D expenditures change rate that affect the IPO underpricing in the high R&D issuing companies instead of the level of R&D. Moreover, the research also identifies that the R&D expenditures change rate is positively related to the long-term performance of high R&D IPO.