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Macroeconomic factors' influences on consumer price level in South Korea
No full text全球央行最近在利率調整方面的動作頻頻，顯示「通貨膨脹」隱憂，已取代經濟復甦，成為央行最主要的課題。由於物價水準的波動對全球經濟的影響甚劇，故本文欲以物價水準做為研究的主題，並以經濟情勢與台灣相似的南韓為實
證對象。
本文以南韓於1987年1月到2005年4月的月資料為主，觀察南韓匯率、利率、貨幣供給、實質所得、國際收支餘額、物價六者之間是否具有共整合關係，採用Johansen共整合檢定法來檢測，檢定變數間長期均衡關係。根據本文實證結果，主要結論為如下。
在5%、1%的顯著水準下，Johansen 的最大特徵根檢定統計量指出此六個變數存在一組共整合關係。南韓的國內利率、匯率、貨幣供給、實質國內生產毛額，與南韓之物價水準成正向關係，此結論與本文第三章的預期結果符合。而國際收支餘額與物價水準為正向關係，我們推論，此結果可能是因南韓在匯率制度方面採取管制而造成。國際收支餘額增加時，為維持匯率致使貨幣供給增加而對物價所造成的影響，大於實質所得增加對物價的影響，使得南韓的物價水準上升。
政府在擬定相關政策時，應密切觀察不同因素對物價水準所可能產生的衝擊性，以便制訂適當的政策。而中央銀行在維持物價水準的過程中，匯率政策又該扮演何種角色？是否會因匯率政策改變了貨幣供給，進而影響了物價水準與國內經濟。這些都是值得我們深入思考的問題。The interest rate has been frequently adjusted recently in many countries. It shows that the worries about inflation, which have already replaced economic recovery, have become the main economic subject. Because of the dramatic impact on global economy, we discuss the price level in South Korea, which its economic situation is similar to Taiwan’s.
Adopting Johansen cointegration test, we used the monthly data from January 1987 to April 2005 and observed that whether the long-run relation existed between the price level and relevant macroeconomic factors. The empirical result is as follows.
According to the result of Max-Eigenvalue test, one cointegration existed between these variables. When the interest rate and exchange rate raised, the money supply increased, and the real GDP decreased, the price level in South Korea raised. The results fit in with what we anticipated in Chapter Three of this thesis. The price level is positive to the balance of payment. We inferred that it might be caused by that the government intervened in the exchange rate system. When the balance of payment increased, the government bought the foreign currency to prevent the currency from appreciation and the money supply increased. As the result, the price level raised.
When the government makes the relevant policies, it should be observed that each factor impacts the price level closely. When the Government wants to keep the price level steady, what kind of role should the exchange rate policy play? When the money supply fluctuates because of the intervention to exchange rate, how do the price-level and the domestic economy be influenced? These are worth considering carefully.目 錄 4
圖目錄 5
第一章 緒論 6
第一節 研究動機與目的 6
第二節 南韓的經濟背景說明 9
第三節 研究流程與架構 17
第二章 文獻回顧 18
第一節 物價與貨幣供給之關係研究 18
第二節 物價與經濟成長之關係研究 22
第三節 物價與利率之關係研究 24
第四節 物價與股票報酬之關係研究 25
第三章 理論模型與實證方法 26
第一節 開放總體經濟模型 26
第二節 通貨膨脹的理論探討 30
第三節 實證方法 37
第四章 實證結果分析 45
第一節 資料敘述 46
第二節 單根檢定 50
第三節 Johansen共整合檢定 51
第四節 向量誤差修正模型 54
第五章 結論與建議 55
附錄 誤差修正模型 57
參考文獻 6
Experimental and numerical study of evolving tributary-dammed lakes
No full text本篇論文結合實驗與數值計算模擬支流大量供砂下河床變化之情形。實驗渠道為長312公分，寬1.2公分的小尺度實驗，以上游流量與供砂量達動床平衡作為初始條件，在渠道中游提供三種供砂量，並藉此使河川形貌動力產生不同的現象，經由影像處理自動捕捉底床與水面的變化，再透過淺水方程式 (Shallow water equation)，艾克納方程式 (Exner equation)以及邊界特徵結構分析 (Eigenstructure analysis)，並根據HLL與LHLL和有限體積法建立一維雙層地貌數值模式。本文中亦延伸該模式至二階精度以探討不同階數次序的模擬差異，最後透過實驗結果以檢核數值模擬的表現。In this study, one-dimension laboratory experiments and mathematical descriptions are used to perform the evolution of river influenced by tributary sediment influx. For the small-scale laboratory experiments (312cm long and 1.2 cm width), three tests are conducted to describe the differences of the morphodynamic response of the river bed: tributary-induced cuspate aggradation, tributary-dammed lake and water blocking dam. To simulate the phenomena, the numerical model dividing the flow into two layers, a pure water layer and a sediment transport layer, adopts shallow water equations that govern the evolution of each interface: with appropriate boundaries which depend on characteristics equations. According to the HLL, LHLL scheme and finite volume numerical solver, the model can be extended to both first-order and second-order accurate version. The proposed methods are applied to the laboratory experiments in order to examine the performance of the one dimensional geomorphological model.口試委員會審定書 #
誌謝 i
中文摘要 ii
ABSTRACT iii
CONTENTS iv
LIST OF FIGURES vi
LIST OF TABLES x
Chapter 1 Introduction 1
Chapter 2 Shallow water model 4
2.1 Governing equations 5
2.2 Boundary conditions 6
2.2.1 Eigenvalue analysis of simple case 6
2.2.2 Eigenvalue analysis of simulated model 8
2.3 First-order computational scheme 10
2.3.1 HLL scheme ( Harten, Lax and Van Leer , 1983) 10
2.3.2 LHLL scheme ( L. Fraccarollo, H.Capart, Y.Zech, 2003) 11
2.3.3 Hyperbolic operator 12
2.3.4 Source operator 13
2.3.5 Avalanche operator 14
2.4 Second-order accuracy 15
2.4.1 The CLF condition 17
2.5 Validation 18
2.5.1 Dam-break and horizontal erodible bed 19
2.5.2 Steady uniform flow 21
2.5.3 Avalanche operator 23
Chapter 3 Laboratory Experiments 24
3.1 Experimental channel 24
3.2 Water discharge and sediment supply 26
3.3 Experimental procedure 30
3.4 Experiment results 31
Chapter 4 Image processing 33
4.1 Image preprocessing 33
4.2 Sketch water surface and riverbed 35
4.3 Results of image processing 35
Chapter 5 Results and comparison 37
5.1 Experimental profile observation 37
5.2 Comparison with shallow flow model 41
5.2.1 The longitudinal profiles 41
5.2.2 Grid size 46
5.2.3 Hydrographs 47
5.3 Summary 50
Chapter 6 Conclusion 51
REFERENCES 5
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Get PDFWe 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
Get PDFWe 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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