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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

極值理論在黃金期貨風險值之應用

林宥呈 Unknown Date (has links)
風險值已是一個廣被接受與運用的風險控管工具,它定義為持有某資產一段期間,在一定的信賴水準下,所可能遭受的最大損失。也就是評估目前所持有部位的風險,並依此評估此暴露是否適當。而如何運用風險值作為事前風險控管工具,更是一個新興的研究方向。風險值的估計模型隨著風險值概念的普及,發展出不同的估計方法;不同的估計方法,也會影響資產配置結果。本文以美國紐約商業交易所(NYMEX)發行之CMX-GOLD 100 OZ 黃金期貨為研究對象,以此探討隨著每日的價格波動,並利用極值理論探討其VaR,資料乃採用J.P.Morgan 建議的1 天、一週交易日5 天, 值即為一般用的0.05,而歷史資料的評估期間則為CMX-GOLD 100 OZ上市交易日從1990 年3 月26日至2005年3月24日,共計有3914筆日資料。
2

馬可夫轉換基礎下技術分析:七種國內外期貨的探討 / Technical analysis based on Markov regime switching model:seven internal and external futures

謝宛純 Unknown Date (has links)
雖然技術分析的爭議非常的多,在市場上卻仍然被廣泛應用,原因即是因為容易被理解且方便應用,不過當馬可夫轉換模型出現時,技術分析便面臨的挑戰。馬可夫轉換模型又稱為隨機分段趨勢模型(stochastic segmented trend model),預測方法也類似於技術分析,利用一段期間內的趨勢來判斷未來走勢。 本研究利用馬可夫轉換模型以及技術分析中相當受歡迎的移動平均轉換法相互作比較,研究標的則選擇國內的兩種期貨:臺股期貨與黃金期貨和國外的五種商品期貨:紐約黃金、布蘭特原油、芝加哥小麥、玉米和大豆共七種期貨,相互比較後,我們發現馬可夫轉換模型在樣本內的獲利績效比均線轉換法的績效要來得好,其中平滑推論又比濾嘴推論的績效好。 另外,馬可夫轉換模型在樣本外的績效並不亮眼,原因可能是估計參數的不穩定性過高,不過在臺灣黃金期貨的部分,樣本外表現也是非常的亮眼。
3

類神經網路之應用-黃金期貨預測 / The application of neural network - forecasting gold future

鐘正良, Chung, Chen Liang Unknown Date (has links)
本研究欲提出一COMEX黃金期貨價格的類神經網路模型,期此一模型能預測出當期的黃金期貨價格。在類神經網路模型方面,採用倒傳遞類神經網路;而其輸入層共有九個處理單元,即影響黃金期貨價格的九個變數,輸出層為一個處理單元,即黃金期貨價格,至於隱藏層則採二層,因黃金期貨價格有波動大、難預測且為非線性的特性。   為證明類神經網路是否有較傳統統計學方法在此一方面有較強的預測能力,所以以此模型與單變量時間數列模型及迴歸分析模型做比較,並以MSE及MAPE作為評估的準則。   在實作方面,研究資料以西元1987年1月至西元1991年12月60筆月資料為訓練樣本;而西元1992年1月至1995年12月48筆月資料為測試樣本。研究結果顯示不論是MSE或MAPE類神經網路模型皆優於迴歸分析模型及時間數列模型。
4

狀態相依跳躍風險與美式選擇權評價:黃金期貨市場之實證研究 / State-dependent jump risks and American option pricing: an empirical study of the gold futures market

連育民, Lian, Yu Min Unknown Date (has links)
本文實證探討黃金期貨報酬率的特性並在標的黃金期貨價格遵循狀態轉換跳躍擴散過程時實現美式選擇權之評價。在這樣的動態過程下,跳躍事件被一個複合普瓦松過程與對數常態跳躍振幅所描述,以及狀態轉換到達強度是由一個其狀態代表經濟狀態的隱藏馬可夫鏈所捕捉。考量不同的跳躍風險假設,我們使用Merton測度與Esscher轉換推導出在一個不完全市場設定下的風險中立黃金期貨價格動態過程。為了達到所需的精確度,最小平方蒙地卡羅法被用來近似美式黃金期貨選擇權的價值。基於實際市場資料,我們提供實證與數值結果來說明這個動態模型的優點。 / This dissertation empirically investigates the characteristics of gold futures returns and achieves the valuation of American-style options when the underlying gold futures price follows a regime-switching jump-diffusion process. Under such dynamics, the jump events are described as a compound Poisson process with a log-normal jump amplitude, and the regime-switching arrival intensity is captured by a hidden Markov chain whose states represent the economic states. Considering the different jump risk assumptions, we use the Merton measure and Esscher transform to derive risk-neutral gold futures price dynamics under an incomplete market setting. To achieve a desired accuracy level, the least-squares Monte Carlo method is used to approximate the values of American gold futures options. Our empirical and numerical results based on actual market data are provided to illustrate the advantages of this dynamic model.
5

我國黃金期貨造市者制度之規劃

陳曉芳 Unknown Date (has links)
世界上成功之交易所大多可以提供附廣度以及深度的商品,滿足各種投資人。若交易所提供證券、金融期貨、商品期貨、選擇權等商品以供投資人選擇,這就是附有廣度的交易所,具備完整性的市場,此外流動性也是交易所各類商品是否得以成功上市之關鍵因素之一,高度流動性可以降低交易成本,提高投資人繼續參與市場之意願,進而帶動商品後續的成長動力,這就是附有深度的市場。兼具廣度與深度性質之交易所,不僅僅能滿足各類投資人之需求,更能幫助經濟之發展。 臺灣期貨交易所(Taiwan Futures Exchange;TAIFEX)現行交易商品包括臺股期貨、電子期貨、金融期貨、小型臺指期貨、臺灣50指數期貨等等,這些商品是以金融期貨(Financial futures)為主,為了建構市場的完整性,增加市場的廣度,是有必要推出商品期貨(Commodity futures),不僅可滿足更多投資大眾之需求、促進商品現貨之避險套利活動,並且有助於市場效率。在眾多商品期貨中挑選貴重金屬期貨當成先發在目前此一環境是相當重要的,因為天然資源最大的先天限制在於蘊藏量在短期下是有限量的,再加上近幾年總體經濟面臨通膨壓力下,與通膨高度相關的黃金投資將再度成為市場上的寵兒。在這樣背景之下臺灣期貨交易所擬在2006年3月27日推出第一檔商品期貨-黃金期貨是很受肯定的,因此本論文將以黃金期貨(GDF)為例子,進一步闡釋如何為商品期貨市場建立相關的提供流動性之制度與計畫,使得市場的深度得以透過此等制度而成功建造。 在國外交易所剛推出商品期貨或者金融期貨都會面臨到流動性不足之現象,但是前者標的商品並不若後者來的具備齊一性,使商品期貨流動性的問題較金融期貨來更受重視。因此國外交易所在推出商品期貨常會順勢引入造市者制度,透過造市者在市場建立之初創造流動性,使買賣價差縮小,將有助於交易者的交易成本降低,另外遠期現貨價格也將透過高流動性逐漸反映在期貨的價格上,避險者也會有信心進場避險,如此一個成功的期貨商品才算是真正成功推出。所以造市者制度對於新期貨商品之推出是很關鍵的,尤其是對商品期貨更是如此,因此臺灣期貨交易所在推出黃金期貨時,為了樹立成功的商品期貨典範並且吸引更多投資者進入商品期貨市場交易,實有建立屬於期貨市場造市者制度之必要。 / Successful exchanges could provide both breadth and depth of financial products to fulfill investors’needs. An exchange filled with breadth indicates that it could provide many different kinds of financial products to investors. As for depth, also called liquidity, it means the ease of entering or exiting a market. Generally speaking, liquidity plays an important part and is also one of the successful keys in financial markets. Because high liquidity could reduce the transaction cost and enhance investors’interests towards the markets, it could bring the growth engine of financial products. As a result, an exchange filled with breadth and depth could not only fulfill investors’needs, but also help the development of the economy. As for Taiwan Futures Exchange (TAIFEX), until 27th March, 2006, it has already provided TAIEX futures, Taiwan 50 futures, and so on. Among these products, it is easy to tell that TAIFEX only provides financial futures but no commodity futures. Therefore, to improve the completeness and efficiency of the market, TAIFEX considers providing commodity futures so that all kinds of investors, such as speculators, hedgers, and arbitrager, could be effectively satisfied. As for the underlying assets of this commodity futures, since the price of gold has been getting higher and higher, and financial products associated with gold have also become more important, TAIFEX decided to launch gold futures on 27th March, 2006. Based on the previous background, this thesis would concentrate on illustrating how liquidity of commodity futures could be improved by executing the market maker program of gold futures. Usually, when exchanges launched new futures, most of them had difficulties in the illiquidity. Moreover, the underlying assets of commodity futures are not as identical as that of financial futures. Therefore, exchanges need to make more efforts in creating the liquidity of commodity futures. Market maker program is a good solution to this problem. Through actively trading of the market makers, it could increase market’s liquidity, reduce bid-ask spread, and further decrease the transaction cost. As a result, in order to provide successful commodity futures and attract more investors entering the markets, it is necessary for TAIFEX to adopt and design their own market maker program. To sum up, if TAIEX set a good example through gold futures, it will pave the light way for the other kinds of commodity futures.

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