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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

台灣泰勒法則實證分析

簡立欣, Chien,Li-Hsin Unknown Date (has links)
泰勒法則 (Taylor rule) 認為央行關心的主要是產出成長與物價的穩定,利用利率工具促使產出成長與物價回到長期穩定水準。此法則由於操作簡單,容易為大眾了解,因此不但有助於人民對央行政策的監督,增加央行的責任感,也為民間提供一個預測未來經濟的工具,降低金融波動。雖然台灣每年仍會公佈貨幣數量 M2 的目標區,似採以盯住貨幣數量為主的貨幣政策,但近年來由於金融創新與自由化,貨幣替代品日增,貨幣的定義也日漸模糊,貨幣和產出及物價目標的相關性降低,我們因此有興趣檢測台灣央行的利率操作是否遵循泰勒法則。由於台灣是個小型開放體系,匯率對經濟狀況有很大的影響力,本文將匯率的變動引入泰勒法則, 和原本的產出成長和物價一同作為央行所關心的政策目標。匯率固有其重要性,但相較於產出成長和物價,對景氣的影響是間接的,所以本文認,央行對匯率的關心主要在其變動方向,而非變動幅度。在這種想法下,匯率在泰勒法則中將只是一個顯示其升降的指標變數。 本文在動態計量模型的設定上,考慮到內生變數間的同期因果關係,以及它們當中存在二元變數,故採用 Duker (2005) 裡所擬議的 Qual VAR (qualitative variable) 模型,使用 Markov Chain Monte Carlo (MCMC) 進行估計。對於估計結果的分析,則大致如同標準的VAR模型, 除了比較模型估計的顯著性與係數大小外,主要是要進行衝擊反應 (impulse-response) 分析,檢驗在各個政策目標的隨機衝擊下,對央行所操控的利率會有什麼樣的影響。
2

In Vitro Effect of Nonconventional Accessory Devices on Throat Deposition and Respirable Mass

Hammer, Carrie L., Bertsch, Matthew D., Myrdal, Paul B., Sheth, Poonam January 2012 (has links)
Class of 2012 Abstract / Specific Aims: To evaluate the in vitro throat deposition and respirable mass of the QVAR® pressurized metered-dose inhaler (pMDI) alone or coupled to an accessory device, such as the AeroChamber Valved Holding ChamberTM or various nonconventional accessory devices. Methods: The performance of the AeroChamber and nonconventional accessory devices, including a toilet paper roll, paper towel roll, rolled paper, plastic bottle spacer, plastic bottle reverse-flow holding chamber, and nebulizer reservoir tubing, were compared to no accessory device. Throat deposition and respirable mass were evaluated using a United States Pharmacopeia (USP) inlet ("throat") coupled to instrumentation for particle size analysis. Each configuration was tested with three actuations and repeated in quadruplicate. The amount of drug deposition was quantified using high-performance liquid chromatography. The data were analyzed using multiple independent t-tests assuming unequal variances. An a priori α-threshold of 0.05 was used with a Bonferroni corrected α of 0.007. Main Results: Compared to the pMDI alone, all of the accessory devices had significantly lower throat deposition (p < 0.001) and significantly higher respirable fraction (p < 0.001). Differences in respirable mass were not significant for any accessory device (p ≥ 0.049), except the paper towel roll and the nebulizer reservoir tubing (p < 0.001). Conclusions: Under these testing circumstances, nonconventional accessory devices, such as the toilet paper roll, rolled paper, plastic bottle spacer, and plastic bottle reverse-flow holding chamber, effectively reduce throat deposition and maintain respirable mass compared to a QVAR pMDI alone. Therefore, they may be suitable alternatives to commercial spacers.

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