Full metadata record
DC FieldValueLanguage
dc.contributorSchool of Accounting and Financeen_US
dc.contributor.advisorLin, Ji-chai (AF)en_US
dc.contributor.advisorChen, Yangyang (AF)en_US
dc.creatorLuo, Yue-
dc.identifier.urihttps://theses.lib.polyu.edu.hk/handle/200/10645-
dc.languageEnglishen_US
dc.publisherHong Kong Polytechnic Universityen_US
dc.rightsAll rights reserveden_US
dc.titleHow external factors influence inventor productivity?en_US
dcterms.abstractThis thesis examines how external factors influence the productivity of inventors, the most creative and precious personnel in many firms. The first factor I examine is terrorist attacks. Using fatal terrorist attacks as man-made disasters that shock the society, I examine their effects on inventor productivity. I find that after experiencing high-fatality attacks, local inventors tend to become more risk-averse and have lower productivity in the subsequent years, while those who witnessed terrorist attacks with low fatality tend to behave more risk-taking and produce more innovation outputs afterwards. I also find that inventors affected by high-fatality attacks are more likely to move to places without any significant terrorist attack history, but there is no such effect for low-fatality attacks. My findings are consistent with the notion that what does not kill you make you more risk-taking, and suggest that shocks to the society can be important external factors to reshape inventors' risk-taking behaviour and affect their innovation. The second factor I examine is air pollution. Using the NOx budget trading program (NBP) as a quasi-natural experiment, I examine whether reduction in air pollution enhances inventor risk-taking, which makes them more innovative. I find that inventors located in the NBP participating states produce more patents after the NBP. These patents also receive more forward citations and have higher economic value. The effect of the NBP is larger for less experienced inventors, or inventors living in high-pollution areas. Further, inventors located in the NBP participating states engage more in experimental innovation and less in specialization innovation after the NBP, which confirms the risk-taking channel. In sum, my thesis shows that external factors, such as terrorist attacks and air pollution, can have significant effects on inventor productivity. I also identify that risk-taking is an important channel of such effects. My thesis highlights the vulnerability of inventors to external factors, and stresses the importance of the external factors in shaping the risk-taking behaviour of inventors in the innovation process.en_US
dcterms.extentx, 118 pages : color illustrationsen_US
dcterms.issued2020en_US
dcterms.educationalLevelPh.D.en_US
dcterms.educationalLevelAll Doctorateen_US
dcterms.LCSHInventionsen_US
dcterms.LCSHInventorsen_US
dcterms.LCSHHong Kong Polytechnic University -- Dissertationsen_US
dcterms.accessRightsopen accessen_US

Files in This Item:
File Description SizeFormat 
5084.pdfFor All Users1.21 MBAdobe PDFView/Open


Copyright Undertaking

As a bona fide Library user, I declare that:

  1. I will abide by the rules and legal ordinances governing copyright regarding the use of the Database.
  2. I will use the Database for the purpose of my research or private study only and not for circulation or further reproduction or any other purpose.
  3. I agree to indemnify and hold the University harmless from and against any loss, damage, cost, liability or expenses arising from copyright infringement or unauthorized usage.

By downloading any item(s) listed above, you acknowledge that you have read and understood the copyright undertaking as stated above, and agree to be bound by all of its terms.

Show simple item record

Please use this identifier to cite or link to this item: https://theses.lib.polyu.edu.hk/handle/200/10645