1,721,015 research outputs found
Essays on bank diversification
Full text linkThis thesis, which consists of four studies, investigates bank diversification in the context of
bank stability, banks’ market power, and bank competition, by constructing new diversification
indicators to capture the degree of diversification at the market and country levels.
The first essay empirically tests a theory regarding the influence of diversification on bank
systemic risk and investigates whether this effect is different for bank standalone risk. I
construct a new country-level diversification measure to reflect the risk distribution among
banks, which makes my study more suitable to evaluate the mechanical reasons behind the
theory tested than traditionally used bank-level diversification indicators. My results confirm
the Wagner’s theory according to which diversification leads to more systemic risk but less
bank standalone risk.
The second essay investigates the role of the regulatory environment, bank size, and capital in
the diversification-bank stability nexus, which extends my findings in the first essay. I find that
the negative relationship between diversification and bank systemic stability becomes weaker
in countries with greater supervisory power of regulatory agencies, higher stringency of capital
regulations, more restrictions on the scope of banks’ activities, and more private monitoring.
Moreover, I show that bank size and capital alleviate the negative diversification-systemic
stability relationship, which implies that larger and well-capitalized banks are less subject to
systemic risk when the degree of diversification in a country is high. To the best of my
knowledge, my study is the first to confirm the moderating role of cross-country regulatory
environments and banks’ essential characteristics in the relationship between diversification
and bank stability.
The third essay investigates how diversification influences banks’ market power, which fills
the gap in the literature regarding the lack of analyses showing whether diversification can be
a determinant or source of banks’ market power. Diversification may enable banks to gain
market power from obtaining new sources of revenues but could also weaken market power by
inducing new costs. I find an inverse U-shaped relationship between revenue diversification
and banks’ market power in both lending and funding markets. This implies that diversification
is an important determinant or source of banks’ market power and potentially affects market
power by changing banks’ output prices and marginal costs of production, or a combination of
both. In addition, this inverse U-shaped relationship is much more manifest in large banks than
in small banks, which indicates that it is dominated by large banks.
The last essay investigates the role of market diversification in the relationship between
competition and bank stability in the dimensions of individual bank stability and systemic
stability, by constructing novel market-level diversification measures. My study is important
to reconcile the mixed conclusions regarding the competition-stability nexus in the literature
by considering the potential changing associations between competition and bank stability
conditional on different degrees of diversification in the market. I find that the negative
relationship between competition and systemic stability is exacerbated when the market
diversification is high while this negative competition-systemic stability relationship turns to
be positive when the market diversification is low. However, I do not find a significant
interacting effect of market diversification on the competition-individual bank stability
relationship. Lastly, I show a positive association between competition and diversification,
which suggests that restrictions in banks’ diversification activities in a competitive
environment may help in maintaining systemic stability.
My research provides useful implications for bank managers and policymakers. First, it offers
bank managers knowledge of how diversified activities are related to banks’ standalone and
systemic risks and suggests the feasibility of managing banks’ market power by formulating
an appropriate diversification strategy. Second, from the policymaking perspective, my study
proposes that promoting diversification would be beneficial to bank standalone stability if
banks’ diversification strategy is well formulated and executed but could bring additional costs
to banks and exacerbate systemic stability
Infrared Sensor by Inkjet Printing Cytochrome C on Suspending Aluminum Electrodes of Post CMOS Process
No full text細胞色素C（一種蛋白質）的製程薄膜已經有些論文發表過具有很高的電阻溫度係數（TCR），在這個碩士論文中，我們做了一系列的實驗來分析細胞色素C，而這些細胞色素C是一種動物性蛋白質，在波段8-12微米處有約65%的吸收率。首先，我們探索了材料表面的現象因而得知表面粗糙度與材料電阻的大小有高度的相關性。之後我們設計了一系列的測量發現，細胞色素C雖然在溶液中會提高蛋白質溶液的TCR，但是本身的導電性並不理想，所以需要緩衝溶液像是電解液般地提高蛋白質溶液的導電導，然而隨著緩衝液的加入卻會降低蛋白質溶液的TCR。換句話說，這是一個比例拿捏的問題。知道蛋白質溶液中細胞色素C與緩衝溶液的性質後，我們選擇了最佳配置比例的蛋白質溶液作為感測材料。接著設計感測晶片，我們所設計的晶片上，微感測結構結合了CMOS讀取電路，再用噴墨機將蛋白質溶液滴在感測晶片的像素結構上。電阻溫度係數、熱導度、時間常數與響應度分別是25.98 %/K、7.96E-5 W/K、1.094ms 與 2.57E+5 V/W at 2μA。測試完晶片之後，我們可以初步了解到感測晶片大致上的運作狀況。根據這個實驗中，微型感測計的陣列可以作為今後的工作去做進一步的設計。The cytochrome c (protein) thin film has been reported high temperature coefficient of resistance (TCR). In this paper, we conducted a series of experiment to analyze the property of Cytochrome C protein. The absorption coefficient is measured around 65% in 8~12 μm. We found that the surface roughness resulted in the resistance difference. We discovered that Cytochrome C protein raised TCR of sensing material, but it conductivity is low. Therefore, the buffer solution was needed acting as electrolyte to increase electrical conductance and keep the PH value at 7. However the buffer solution diluted the Cytochrome C solution. After knowing the property of the protein solution, we selected the best preparing ratio of the protein solution as the sensing material. We designed CMOS circuit to integrate with cytochrome c protein as a microbolometer. The MEMS structure was based on the working formula, and then the protein solution was put on the sensing pixel by using inkjet printer. The chip’s TCR, thermal conductance, time constant and responsivity were 25.98 %/K, 7.96E-5 W/K, 1.094ms and 2.57E+5 V/W at 2μA. In the long run, the fabrication of microbolometer was successfully compatible with CMOS process
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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