創新無論在經濟成長或是企業競爭中，都扮演非常重要的角色，其中專利權又是保護創新的重要關鍵，但基於專利價值分佈呈離散且偏態的特性，企業在從事研發活動時，必須重視專利品質，以避免專利與技術貿易收支之矛盾情形。過去在專利品質的研究上，被引證次數是最有效的衡量指標，但目前作法卻僅考慮直接被引證次數，而忽略間接被引證次數，此作法造成三個問題：忽略了間接引證資料的攸關性、未考慮各個被引證次數的品質差異、未考慮引證專利的品質差異。因此，本研究以實證研究方法，探討間接被引證次數對企業價值的影響，進而評估間接引證資料於專利品質評估的應用。 本研究以在美積極從事專利活動的美國公開上市企業為樣本，期間為1980年至2002年，以二因子固定效果模型，觀察化學、電腦與通訊、電子與電機產業的創新活動對企業價值的影響。本研究有兩點重要發現：一、研發強度與專利產出效率與企業價值相關性低，甚至呈負向相關，而兼顧量與質的專利指標則與其呈現正向相關，表示研發必須值、量並重；二、間接被引證次數具有價值攸關性，且其影響力會逐層遞減，此結論不僅提供未來相關研究的重要基礎與新的研究方向，更表示在從事專利分析或專利指標設計時，需將間接引證資料納入考量。 / Innovation always plays an important role in both economic development and corporate competition, therefore patents that protect innovation are key. But because patent values are highly dispersed and skewed, corporations must focus on quality and not merely on quantity in R&D management to prevent a technology trade deficit while increasing the quantity of patents granted. Much literature has found that the number of citations received is a good proxy for patent quality. But most people only consider direct citations and ignore indirect citations in their research and practices. These people ignore three important facts: the value relevance of indirect citations, the weight difference of each citation count, and the quality dispersion of citing patents. As a result, this study utilizes empirical methods to discuss the influence of the number of indirect citations received on corporate market value and then assesses the relevance of indirect citation in patent indicators. The samples used in this study are 1,624 U.S. listed firms that have been active in applying for for patents in three areas: chemical, computer and communication, and electric and electronics between the years 1980 and 2002. This study uses two-way fixed effect model to evaluate the influence of innovation activities on corporate value. The first conclusion suggests that patent indicators based on quantity and quality has positive correlation with corporate value while R&D intensity and R&D efficiency based on patent quantity both have low correlation and sometimes even a negative correlation with corporate value. This implies that corporations must develop a R&D strategy that focus both on quantity and quality at the same time. The second conclusion confirms the value relevance of the number of indirect citations received and finds the progressively declining influence of ascending citation orders. This study not only offers an important basis and brings up new issues for future related research but also confirms that taking indirect citation data into consideration is necessary.

本研究旨在探討民國88年至94年台灣IC設計產業之研發效率分析。採兩階段資料包絡分析法(Data Envelopment Analysis, DEA):第一階段以保證區域資料包絡分析法(Assurance Region DEA，AR/DEA)衡量績效，以避免傳統DEA方法可能出現產出或投入的乘數為0之狀況。第二階段採資料切齊的(censored) TOBIT迴歸模型探討影響研發效率值的效率因子。 研究發現: (1)只考量專利數量與納入專利品質考量下之統計檢定結果，雖沒有顯著的差 異，但對少數的廠商的研發效率值與排名確實有變動，納入專利品質考 量，可以掌握更多研究發展資訊，了解廠商專利真正的價值。 (2)專利被引證次數與研發效率值呈現顯著正相關。 (3)TOBIT迴歸實證結果顯示: 研發效率與公司規模無顯著關係；研發效率與研發人力密集度無顯著相 關；研發效率與研究發展費用率呈負向關係；研發人員年約收入對研發技 術效率無顯著影響；外來知識流量占自有知識存量比例會正向影響研發效 率表現。 / This study investigates R&D efficiency analysis of IC design industry in Taiwan from 1999 to 2005 by using the two-stage Data Envelopment Analysis (DEA). To avoid the situations that the multiplier of the input or output might be zero, we adapt the method of Assurance Region DEA (AR/DEA) to measure achievements in the first stage. We then use censored TOBIT regression model to study the factors that influence the efficiency value in the second stage. Through our study, we conclude that: (1) Although there is no significant difference in the results of statistical test whether we take patent quantity into account or not, both the value of R&D efficiency and ranking of a few firms do change. We can grasp more information of research and development and understand the true value of firm’s patent as we put patent quality into account. (2) The correlation coefficient between the amount of patent cited and the value of R&D efficiency is positive significantly. (3) The empirical results of TOBIT regression show that: a. There is no significant relationship between the R&D efficiency and the company’s scale. b. There is no significant relationship between the R&D efficiency and the density of R&D workers. c. There is a negative relationship between the R&D efficiency and the ratio of R&D expense. d. The yearly revenue of R&D workers does not significantly influence the R&D and technology efficiency. e. The ratio between the flow rate of external knowledge and the owned knowledge storage affects positively on R&D efficiency.

My research seeks to understand the behaviour of workers and firms and how their decisions affect labour market outcomes. My PhD dissertation consists of three separate Chapters that use detailed historical, census and administrative data to gain insights into the mechanisms at play when incentives for production and location decisions change. Chapter 1 asks whether financial incentives can induce inventors to innovate more. I exploit a large reduction in the patent fee in the United Kingdom in 1884 to distinguish between its effect on increased efforts to invent, and a decrease in patent quality due to a lower quality threshold. For this analysis I create a detailed new dataset of 54,000 British inventors with renewal information for each patent. In the longer run high-quality patenting increases by over 100 percent, and the share of new patents due to greater effort accounts for three quarters of the pre-reform share of high-quality patents. To test for the presence of credit constraints I generate two wealth proxies from inventor names and addresses, and find a larger innovation response for inventors with lower wealth. These results indicate efficiency gains from decreasing the cost of inventing and in addition, from relaxing credit constraints. In Chapter 2 we assess the effects of changes in ethnic neighbourhood composition in England and Wales. A change in social housing allocations in the 1990s serves as instrument for changes in the local ethnic composition. For the analysis we create a dataset of highly disaggregated census geographies for 1991-2011. The results imply that an exogenous increase in social housing minority share by 10 percentage points raises the minority share in private housing by 1.2 percentage points initially. This sorting effect is larger for privately rented than for privately owned housing. We further show that an increase in the minority share leads to higher local population growth and a small decrease in house prices in the longer run. Chapter 3 proposes a new approach for analysing responses to comprehensive labour market reforms. Using detailed micro data we evaluate the German Hartz reforms that aimed at reducing unemployment. The timing of the reforms affects the model parameters, which are estimated using matched data on 430,000 workers in 340,000 firms. Contrary to previous findings, our analysis shows that the reforms marginally reduced unemployment at the cost of a pronounced decline in wages. Low-skilled workers suffered the largest wage losses. Furthermore, we decompose the contribution of each reform wave on employment and wages, and document a structural shift in the factors that govern overall wage dispersion.

This dissertation provide not only a comprehensive overview on concepts and models of innovation, but it also provide critical analysis on the intellectual property system with an emphasize on the patent system and enforcement system in Vietnam. The empirical findings have suggested that legal business types, firm's age are amongst the determinant characteristics that indicate manufacturing innovation. Furthermore, a number of factors including rewarding scheme,average employee education,collaboration, training are the factors that influence manufacturing innovation.<p>Moreover, an in depth study on the patenting cost system of the fast developing ASEAN countries and China explore the impact of FDI and the patenting cost on the growth of resident patent registration ,which is observed following the traditional demand curve. With poor infranstructure and lack of competent IP personnel, the quality of patent granted is in questionaire. Finally, this research explore in depth the enforcement systems in Vietnam, which need further reform. / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished