過去研究說明具產業專長之會計師仍能在客戶財務資訊不完整情況下，利用其行業特定知識與較高技術能力執行完善的審計工作(Thibodeau 2003; Moroney 2007; Hammersley 2006)。本論文定義資訊不確定性為客戶之財務資訊無法幫助預測公司的價值(Zhang 2006; Autore et al. 2009)。本論文推論若公司的財務報表具有不確定性會需要聘請產業專長會計師以減緩資訊不確定性的程度，並進一步研究具資訊不確定性公司若由非產業專長更換為產業專長會計師是否能提升其審計品質。由於審計工作目的在於提供資訊品質的確認(Dye 1993; Knechel et al. 2008)，審計人員會依據審計客戶的環境，設計和執行適當的審計計劃以減輕資訊不確定性情況。本論文以會計師角度建立一資訊不確定性架構，進一步將資訊不確定性分為基本價值波動不確定性與資訊品質不確定性，並推論產業專長會計師比較能在資訊品質不確定性中發揮其價值。本論文分為兩部分：第一部分檢驗資訊不確定性是否會影響產業專長會計師之選任，第二部分則檢測具資訊不確定性之審計客戶若選擇產業專長會計師之後，其審計品質是否會提升。 / Previous studies establish that a specialist auditor has more industry-specific knowledge and higher technological capability that can pertinently benefit situations in which client financial information is incomplete (Thibodeau 2003; Moroney 2007; Hammersley 2006). In this paper, we define information uncertainty as the ambiguity with respect to the implications of new information concerning a firm’s value (Zhang 2006; Autore et al. 2009). Because some financial statements present information in uncertain terms, we infer that companies whose financial statements provide uncertain information demand specialist auditors to alleviate the extent of information uncertainty. We further examine the improvements on audit quality made by those companies under information uncertainty which chose to switch from non-specialist auditors to specialist ones. As an assurance of information quality (Dye 1993; Knechel et al. 2008), an auditor, based on his knowledge of the auditee and its environment, will alleviate the uncertainty level of the auditee’s financial information through designing and executing an appropriate audit plan. We build a framework of information uncertainty and develop comprehensive measurements of information uncertainty from the auditor’s point of view. Moreover, this study disentangles the information uncertainty effects into fundamental volatility uncertainty and information quality uncertainty, and proposes that specialist auditors manifest their merits more under information quality uncertainty than under fundamental volatility uncertainty. In the first part of this study, we examine the auditors chosen by companies whose financial statements are characterized by information uncertainty. Previous studies on auditor choice address many reasons why companies switch their auditors (Lennox 2000; Carcello and Neal 2003; Blouin et al. 2007). Information uncertainty makes stakeholders lower their reliance upon company financials and even downgrade the filers, triggering negative stock price reactions (Merton 1987; Beneish et al. 2005; Beneish et al. 2008; Hammersley et al. 2008). Based on prior research, we can infer that a company under information uncertainty chooses to hire a specialist auditor to signal the credibility of the financial statements and improve market perception. We hypothesize that companies suffering uncertainty demand specialist auditors to alleviate their information uncertainty. The auditor’s information role is to ensure the reliability of financial information, and a specialist auditor is equipped with superior audit knowledge and technology. Therefore, we further infer that a company whose specific information uncertainty is attributable to information quality issues (rather than fundamental volatility issues) is more inclined to choose a specialist auditor. This is because a specialist auditor improves the credibility of financial information instead of being involved with the client’s business decisions. We use an auditor switching sample of U.S. companies from 2001-2009 to examine whether the information uncertainty is an issue of auditor choice or not. Consistent with our conjecture, companies under information uncertainty prefer to hire specialist auditors. Evidence partially supports that relative to companies under fundamental volatility uncertainty, companies suffering information quality uncertainty are more inclined to choose specialist auditors. In the second part of this study, we find evidence for the economic consequences of upgrading switches to a specialist auditor when the company is experiencing information uncertainty. After the Sarbanes-Oxley Act (hereafter, SOX), many companies began to take the cost-effect issue into consideration; they ultimately decided to go private (Zhang 2006; Engel et al. 2007) in order to avoid the high-cost of Section 404 or switch to a non-Big N audit firm (Calderon et al. 2007). There's no such thing as free lunch; the specialist auditor usually has greater ability and concomitant higher charges (Craswell et al. 1995; DeFond et al. 2000; Francis et al. 2005; Cahan et al. 2008). It is natural to question whether every company needs to engage specialist auditors if it has to pay high audit fees. In this paper, we attempt to determine in which circumstances specialist auditors can make a significant difference in improving audit quality. We investigate the relationship between auditor specialization and audit quality in an information uncertainty setting using an auditor switching sample taken from 2001 to 2009 in the United States. We examine ex post facto whether (1) specialist auditors improve audit quality more than their non-specialist counterparts; and (2) specialist auditors manifest their merits more under information quality uncertainty than the fundamental volatility uncertainty. Since the value of auditor industry specialization is reflected by the perceived and actual audit quality (Balsam et al. 2003; Nagy 2005), we examine both earnings response coefficient (ERC) and accruals quality to proxy audit quality (DAC). In both models, the audit quality of companies that suffer fundamental volatility uncertainty along with comprehensive uncertainty is not enhanced substantially following upgrade switching to a specialist auditor. We find strong empirical results that demonstrate companies under information quality uncertainty show significant improvements in audit quality after switching to specialist auditors. However, specialist auditors are significantly more capable of mitigating the information quality uncertainty than the fundamental volatility uncertainty. That is, auditor specialization is a critical solution when companies encounter information quality uncertainty.

本文針對附保證年金型投資商品進行評價，其中被保險人脫退因素除受到死亡解約因素之外，對經濟環境影響因素產生解約問題，如利率攀升、經濟成長率、失業率等亦須考慮。附保證年金型投資商品公帄價值為保險公司販賣投資型年金商品須對負債面進行評價，以確保被保險人之權益，保險商品價值除因投資市場環境變動造成投資商品價值累積變動之外，對於被保險人因應市場環境轉變造成脫退問題亦影響保險公司對於投資型商品準備金價值評估，本篇依照Kolkiewicz & Tan(2006)之研究，假設附保證年金型投資商品評價方式，除投資標的受到市場變動影響外，對於經濟環境變動造成被保險人解約狀況亦考慮於核保模型中，因脫退因素考慮層面過廣，故本篇主要以死亡、經濟環境變動劇烈與利率上升導致解約因素為主要考慮狀態。 本研究推導之模型主要得出下列結果：(1)附保證年金型商品的公帄價格以保險年期的影響最大，其次為風險性資本市場長期帄均波動，而死亡率影響附保證投資年金型商品主要由風險性資本市場價值決定。(2)契約初始為主要解約期間，當解約力持續增加至一定值，契約後期解約率將趨於帄坦，本研究推估契約前期經濟市場波動易造成被保險人解約狀況，故解約程度增加。(3)主要投資型商品風險價差問題影響因素為長期市場波動程度，因風險價差之衡量主要考慮風險因子變動因素導致與公帄價值或期初保費差距，依照模型假設變動因子以風險性資產價值波動程度影響最巨，其次為保險期間，因此歸納出風險價差因子主要變動來源為風險性資產價值。 / In this paper, the goal is to evaluate fair value of guaranteed annuity-type investment products. In addition to death factors, the insured terminate by other reasons, such as interest rates raising, economic growth rate, and unemployment rate. Accordance with the liabilities side, the reserve of guaranteed annuity-type investment products must match it’s fair value. There is a question how to accurately evaluate fair value of guaranteed annuity-type investment products. The price of guaranteed annuity-type investment products is affected by two parts. One is cumulative index price change in value of investment goods, the other one is withdrawal rates. Kolkiewicz & Tan’s research assume guaranteed annuity-type investment products evaluation methods which is affected by market environment and termination status of the insured. The results show that (1) The major impact on fair value of guaranteed annuity-type investment products is mainly from the period of the insurance contracts. The secondary effect is long-term average risk capital market volatility. (2) The main terminate time is the beginning of the contracts. When the lapse rates continued to increase to a certain value, lapse rate tends to smooth.(3) The major impact on risk spread of guaranteed annuity-type investment products is mainly from long-term market volatility. To sum up, the major changes in sources of risk spreads factor are from asset value.

本文係利用高頻資料研究股票指數期貨的到期日效應，考量到中國的衍生性商品起步甚晚，相關研究不如台灣來的多，因此選取中國的滬深300股指期貨市場作為本研究的主題，希望能夠為後續有興趣的研究者提供參考。但是因為中國市場的資料取得不易，本文所使用的樣本資料只為期兩年，選取2010年4月16日到2012年4月20日的滬深300股指期貨的1分鐘高頻數據作為原始數據。 本文目的在於研究滬深300股指期貨經由考慮成交量、價格反轉以及波動度的到期日效應，實證結果發現在期貨到期日當天與隔一天的某些交易時段明顯存在著型0、型I與型II價格反轉，成交量檢驗指出，到期日成交量明顯大於非到期日成交量，波動度異常檢驗顯示，到期日收盤前五分鐘的波動度有異常放大的現象。本文的實證結果部分，利用模擬投資策略去檢驗價格反轉在經濟上是否有意義，發現價格反轉不只是在統計上顯著，同樣也是具有經濟意義的，但是把資料依據時間區分為前後兩部分並做檢驗之後也發現，這種經濟意義會隨著時間而呈現遞減的狀態。 / The central idea of this thesis is studying expiration effects of stock index futures. As we know, China stock index futures market, which is also known as CSI 300 Index futures market, is experiencing its early stage with fewer related studies comparing to Taiwan stock futures market. In order to provide research references for succeeding researchers interested in CSI 300 Index futures market. However, having difficulties collecting high frequency market data from CSI 300 Index futures market, we use only two years data from the beginning of CSI 300 Index futures market. The main purpose of this thesis is to study the expiration effect of CSI 300 Index futures by from three aspects, price reversals, volume effects and abnormal return volatility. The empirical results shows that type 0, type I and type II existed in several trading hours in both the expiration day and the next trading day. Second, it indicated that the trading volume in expiration days is significantly larger than in non-expiration days. Third, the empirical result also pointed out that magnified return volatilities existing in five minutes before market closes on the expiration day. Moreover, we used simulated investment strategies as analysis tools and found that price-reversal effect is significant on economical basis. However, we discovered that the level of these effects is declining gradually from the beginning to the end of data period.

本文採用 Chib， Nardari， 與 Shephard(2006) 的多變量動態因子隨機波動模型(MSV)， 來探討美、日、台三國的資訊、電腦類股股價報酬率波動的共同行為。 我們將模型中的因子解釋為產業的前景或信心，並藉由模擬的方式描繪出其樣貌，進而希望了解產業景氣循環在股價的波動行為中扮演什麼角色。 研究財務市場間的關聯性一值是一項重要的課題，也發展出各種的模型來描述既有的現象。 MSV 模型將看不到的解釋變量數量化，並將變數的波動行為切割為可由因子所解釋與不能解釋的部分。 且藉由將觀察值的誤差項以及單一因子的波動行為設定為隨機波動，放寬共變數變異數矩陣為定值的假設，讓每一時點都能依時變動，在同類的模型中對資料的設定是較少的。 在實證分析中我們有幾點發現：1. 因子能夠解釋資產間的波動行為，其反映在扣除因子波動之後的自有波動，其波動水準值的降低。 2. 在股價波動劇烈期間，因子解釋能力提高。 3. 因子的解釋能力在不同的國家中差異幅度很大，日本有超過一半的波動可以為因子的波動所解釋，而因子在台灣股價的波動行為只有兩成左右的解釋能力。

本文旨在探討具有捕捉交易密集度特性的波動率測度模型是否能幫助投資者改 善其資產配置的決策。因此，本文分別考量了利用兩種不同價格抽樣方式所計算 出來的實現波動率 (realized volatility) 模型： (1) 日曆時間抽樣法 (calendar time sampling scheme) 與 (2) 交易次數時間抽樣法 (transaction time sampling scheme)。相較於另一廣為應用的一般化自我迴歸條件異質變異 (Generalized Autoregressive Conditional Heteroskedasticity) 模型而言，這兩種實現波動率模型的優點除了在於它們可以捕捉日內資產報酬率的動態變化之外，交易次數時間抽樣法更可以另外捕捉市場的交易密集度。因此利用交易次數間抽樣法所計算出的實現波動率相對提供給投資者較多的訊息。本文利用了West, Edison and Cho (1993) 所提出的資產組合期望效用模型衡量三種波動率測度的預測績效：(1) 實現波動率 - 日曆時間抽樣法 (2) 實現波動率 - 交易次數時間抽樣法 (3) 指數型一般化自我迴歸條件異質變異 (Exponential Generalized Autoregressive Conditional Heteroskedasticity)。我們的實證結果發現，只有在投資者風險趨避係數越小的條件下，此三種波動率測度模型兩兩之間才有較大的期望效用差距；另外，有趣的是，當市場存在異常的交易波動現象時，交易次數時間抽樣法下的實現波動率所產生的期望效用值總是不輸給另外兩種波動率測度模型的結果。 / This paper examines whether volatility measures that account for trading intensity would help investors make better decisions in their asset allocation. Specifically, we consider two versions of realized volatility (RV), namely, one (RV-C) constructed by regular calendar time sampling, and the other one (RV-T) constructed by transaction time sampling. Comparing to models in the GARCH family, both of these two RVs can capture intraday variations of asset return dynamics. In particular, the RV-T incorporates intraday trading intensity, and hence provides even more valuable information for investors. With the utility-based approach developed by West, Edison, and Cho (1993), we compare the predictive performance of RV-C, RV-T, and the EGARCH model in terms of utility generated with each of these three volatility measures. Our empirical results show that the three measures differ from each other mostly when investors are less risk-averse. Most interestingly, the time-deformed RV-T weakly dominates the RV-C and the EGARCH model when the markets are extremely volatile.

傳統財務理論中均假設市場為效率市場，然而不動產市場並非效率市場，投資者對於市場資訊之反應並非完全理性。若投資者忽視自身擁有之資訊，選擇追隨其他人的投資決策，將使投資人間存在相互牽制之行為，因而產生行為財務學中之「從眾行為」，其決策結果將無法完全反應市場資訊，並造成投資人集體買進、賣出之行為，使市場價格與交易量存在不正常之波動。由於台灣不動產市場長期以來存在有價格漲幅波動超越合理範圍之現象，因此本研究探討台灣不動產市場是否存有從眾行為，使得投資人具有非理性的投資傾向。 有鑑於過去關於從眾行為之研究仍以股票市場中報酬率或交易量驗證為主，對於台灣運用交易量進行不動產市場之從眾行為驗證則付之闕如，而從眾行為對於不動產市場之影響，首先將反映於交易量之波動，因此本研究運用自我迴歸分配落遲模型對於台灣不動產市場是否存在從眾行為進行驗證，並比較不動產報酬率波動不同之交易市場，其從眾行為存在情形之異同。 模型結果顯示台灣三大都會區（臺北市、臺中市與高雄市）與臺北市分區（分為市中心、郊區與郊外）中，僅臺北市整體與臺北市分區之住宅市場明顯存在從眾行為現象。結果顯示當該住宅市場存在從眾行為時，當期交易量將受到當期持有成本與前期市場報酬率之影響。此外，交易量除受從眾行為之影響外，尚受到經濟成長率、營建類股股價指數、物價指數租金年增率、營造工程物價指數等之正向影響，而購屋貸款利率與通貨膨脹則和交易量呈反向變動現象。 本研究以探討從眾行為、交易量與總體經濟因素之關連性，進一步釐清影響住宅市場交易量波動之因素，使購屋者於決策時參考前期市場交易情形能更加理性，避免盲目跟隨下的從眾行為產生。 / Base on the Efficient Market Hypothesis, the traditional financial theory assumes the market is efficient. However, the real estate market is not. For this reason, investors could not react to market information entirely. If investors ignore their own information, they may choose to follow other peoples’ investment decisions. Therefore, this situation will lead to herding behavior of behavioral finance that may cause price volatility and unusual transactions. On account of the real estate market exists unreasonable price fluctuations for a long time in Taiwan, this thesis examines whether the herding behavior exists in Taiwan real estate market or not. Although many researchers study the herding behavior in the stock market by using the transactions and the returns on investment, few attempts have been made to discuss the herding behavior in Taiwan housing market by using the housing transactions. Hence, this study examines the herding behavior in Taiwan housing market by establishing the Auto-regressive Distributed Lag (ARDL) model with housing transaction data. Results found the herding behavior of real estate market do exist in the whole Taipei city and the three region of Taipei city (downtown, suburb and outskirt). And it shows the transactions in the housing market with herding behavior may be affected by user cost of housing and pre-market returns. Furthermore, the study finds some macroeconomic factors affecting the housing transactions positivity, such as economic growth rate, construction stocks index, consumer price index of house renting and consumer price index of construction engineering. On the contrary, loan interest rate of housing and consumer price index has negative influence. To conclude, this study aims to examine the influential factors on the volatility of housing transactions though clarifying the relationship between the herding behavior, the transactions in housing market and the macroeconomic factors. It may help investors follow other peoples’ investment decisions more reasonable, and avoid blind herding behavior in real estate markets.

風水為中國民俗之一大特色，近年來更逐漸受到國人所重視，亦成為對不動產價格造成影響的因素之一。而方位更是風水因子中相當重要的一環，因此本研究以臺北市松山區之住宅大樓為研究對象，探討方位風水因子對於不動產價個的影響程度、不動產業者對於方位風水因子的減價加價態度及購屋者對於方位的選擇及喜好程度。以提供不動產相關業者及政府部門進行推案或估價時的調整，並作為一般民眾購屋時的參考。研究結果如下： 一、一般民眾認為好的方位為坐北朝南，方位的判定方式為房屋的座落窗或大片窗戶。 二、民眾於購買房屋或不動產專業人員於估計房屋價格時，面對好或不好方位的房屋時，認為其價格調整空間為一成以內 三、一般購屋者認為方位會影響其購屋意願及房屋的價格。而雖然購屋者認為好的方位可以提高房屋價格，且願意多花費一成以內的金額去購買方位好的房屋，但對於方位不好的房屋是否應有所降價卻感到遲疑，當面對方位不好的房屋價格下降時，大多數的購屋者仍表示不願意購買。 / Feng-Shui is the most special feature of China's culture. Recently, it’s become more and more important in our mind and it has become one of the effects to the real estate price level. Meaenwhile, direction-position is also the relative important factors to Feng-Shui. The real estate in Taipei Songshan distinct as my research target, we are trying to find out whether direction-position is the factor to effect real estate value. The house-solder attitude was raised or lowered the price toward the direction-Feng-Shui factor. The house-buyer has prefer to choose better direction-position. The house direction-position could be the market pricing information for transaction market and govement. Our research results are as follows: 1. People choice of good direction-Feng-Shui position is facing south/backing north, and the direction-housing is located in windows or large windows. 2. The direction-Feng-Shui position for house-buyer or real estate professionals has cut up its housing price range within ten percent. 3. People think the direction-Feng-Shui position will effect their willing to buy the house and housing prices. Although homebuyers think that a good position to increase housing prices, and willing to spend an amount of money to buy into a position within a good housing, However its not good for the position should be lower prices for housing. They are very hesitant when faced with bad directions and down the housing prices, meaenwhile, the most homeowners are still not willing to buy.

歐盟保險業者於2005年開始，將強制採用IFRS之相關規定。而過去IFRS對於保險業之影響主要以理論探討為主，因此本研究以歐盟壽險業為主要研究對象，探討IFRS適用對壽險業之影響。研究結果發現歐洲壽險業者於適用IFRS後，整體而言的確對於其盈餘波動程度產生正向影響；在資金成本方面則為負向之影響。有關投資配置之影響部分，IFRS之實施對於壽險業者之投資決策並未產生顯著之影響。另一方面，壽險業者之審計公費有降低之趨勢，但其資訊揭露成本有顯著增加之趨勢存在。 / Beginning in 2005, compliance with the International Financial Reporting Standards (IFRS) has been required in the European Union insurance industry. In the past, the influences of IFRS on the insurance business primarily take the theory discussion. The study takes the European Union life insurance industry as the main objects of study, trying to discuss what the influences of life insurance industry to adopt IFRSs. The study finds that after European Union life insurance industry adopting IFRS, the earning volatility increase and cost of capital would decrease. But in the investment allocations, the influences of IFRS are not significant. In the other hand, audit cost would decrease and information disclosure cost would increase.

資產報酬的波動程度隱含風險與不確定性，不同的投資者存在不同之風險偏好與風險承受能力，因此瞭解報酬波動之特性有其必要性；又鑑於過去不動產市場對於商用與住宅不動產兩次市場之相關研究較欠缺。因此本研究擬分別探討商用與住宅不動產市場報酬波動特性與差異，並檢視其風險與報酬間之關係。此外，總體經濟環境之變動會影響不動產市場供需關係，進而影響其價格與報酬之波動，因此本研究最後再進一步討論影響其市場報酬之總體經濟因素。 為捕捉不動產市場報酬之波動特性，本研究擬透過GARCH模型分別檢驗商用與住宅不動產市場報酬波動特性與差異；進而應用GARCH-M模型，探討商用與住宅不動產市場報酬與風險之關係；最後透過落遲分配模型實證比較分析顯著影響商用與住宅不動產市場報酬之總體經濟因素。樣本取自台北地區，資料期間為1997年2月至2009年3月之月資料。 實證結果顯示，商用不動產市場中投資人較容易透過自身過去的報酬波動推測未來的波動，反觀住宅不動產市場部分，投資人則傾向注意整體市場消息的散佈，因為其較容易受到外在因素影響而導致報酬波動；由GARCH-M模型實證結果顯示，住宅與商用不動產市場報酬與風險間均呈現顯著正相關，顯示其市場波動風險增加時期，會提供更高之報酬以均衡投資者所面對之較高市場波動風險；由落遲分配模型實證結果顯示，商用與住宅不動產市場報酬確實和總經變數之間有著程度不同的關聯性，所有當期總經變數與不動產報酬間均不存在顯著影響關係，顯示各總經變數對不動產報酬的影響存在時間落差。此外，總經變數對商用報酬的影響程度相對大於對住宅報酬的影響，且總體經濟環境變動對於商用不動產市場報酬之衝擊相對較為迅速。 / This research plans to study the relative volatility characteristic of commercial and residential property returns. In addition, the changing real estate environment can be linked to the macro economy, so we further discusses the relationship between property returns and the macro economy. In order to catch the volatility characteristic of real estate returns, we use GARCH model to examine the volatile behavior of real estate returns of commercial and residential property in the Taipei area during the period of February 1997 to March 2009, and because risk is time-varying in the market, we continue to employ GARCH-M model to observe whether can explain the change in expected returns of commercial and residential property. Furthermore, we use distributed-lag model to explore the relationship between macroeconomic factors and real estate returns. The major findings of this article can be summarized as follows. First, it is easier for investors to infer the future fluctuation through oneself returns in the past in the commercial real estate market, but part on the residential real estate market, the volatility of residential property returns is influenced by external factor more easily. Second, our empirical applications in both commercial and residential real estate markets show that the risk is positively correlated with both property returns and high risk can bring high return. Third, there are different relations of intensity between real estate returns and macroeconomic factors and the impact of macroeconomic factors on real estate returns exist time-lag. In addition, macroeconomic factors’ impact on commercial returns is relatively great, and the environmental change takes place to the impact of the commercial property returns comparatively fast.

本論文的目的在於研究匯率波動與對外直接投資(foreign direct investment, FDI)時點的關係。本論文採用實質選擇權分析法(real options approach)由理論面重新檢視這個議題，並利用實際資料驗證理論的正確性。本論文在文獻上的貢獻在於證明：在探討匯率波動與FDI關係時有必要考慮廠商投資動機的差異性。 為了說明不同投資動機對這個議題的重要性，本論文考慮四種不同對外直接投資的型態，分別為市場導向型(market-seeking)、回銷導向型(reverse- importing) 、替代出口型(export-substituting)及躍過反傾銷稅型(antidumping- dumping)。首先，我們延伸Dixit-Pindyck的實質選擇權模型，證明匯率波動提高會使市場導向型及回銷導向型的廠商延後投資，但對於風險趨避程度夠高的替代出口型廠商而言，匯率波動提高則會使其提前投資。此外，我們證明地主國貨幣升值對市場導向型廠商的FDI有利，但對回銷導向及替代出口型廠商的FDI則有不利影響。 其次，我們分別使用台商至中國大陸投資的產業資料及廠商資料進行實證。樣本期間涵蓋1987年至2002年。實證結果發現，新台幣兌人民幣實質匯率及其波動度與兩岸相對工資等因素對台商至中國大陸投資時點皆有顯著的影響，而且這些實證結果皆與前述理論預期相符。這些結果顯示，匯率波動對FDI之影響方向與投資動機息息相關。在進行實證研究時若忽略了這項因素，實證結果可能會產生加總偏誤(aggregation bias)。 最後，本論文建立一個不完全競爭下的實質選擇權模型，分別探討匯率波動如何影響出口廠商的傾銷行為及其躍過反傾銷稅的對外直接投資 (antidumping-　jumping FDI)，並分析進口國採取反傾銷政策的福利效果。我們發現匯率波動對廠商以低於內銷價格傾銷(price dumping)至出口市場的影響有不對稱(asymmetry)現象。此外，若政府採取反傾銷政策，可能刺激出口廠商採行躍過反傾銷稅的FDI。惟若出口廠商採行躍過反傾銷稅的FDI，不僅進口國國內廠商受到傷害，其社會福利也可能下降。此結論與過去策略性貿易政策文獻之看法大相逕庭。 / This thesis theoretically and empirically examines the relationship between exchange rate movements and the timing of foreign direct investment (FDI). A real options approach is adopted. This thesis contributes to the literature in illustrating the importance to consider the diversity of investing motives when examining the relationship between exchange rate movements and foreign direct investment. To show the importance of the diversity of the motives in investigating this issue, four different types of FDI are discussed in this thesis: market-seeking FDI, reverse-importing FDI, export-substituting FDI, and antidumping-jumping FDI. We first extend Dixit-Pindyck’s real options model to show that while an increase in exchange rate volatility tends to delay the FDI activities of a market-seeking firm and a reverse-importing firm, it might accelerate the FDI activity of an export-substituting firm if the firm’s degree of risk aversion is high enough. In addition, it is also shown that while the depreciation of a host country’s currency tends to stimulate FDI activities of reverse-importing firms and export-substituting firms, the depreciation tends to deter FDI activity for market-seeking firms. With the industry-panel data and the firm-level data on Taiwan’s outward FDI into mainland China over the period 1987-2002, our empirical findings indicate that the exchange rate level and its volatility in addition to the relative wage rate have had a significant impact on Taiwanese firms’ outward FDI into China. In general, the empirical results are consistent with the prediction of the theory. These results reveal that the relationship between exchange rate movements and FDI is crucially dependent on the motives of the investing firms. Without considering this fact in an empirical model, the testing results might suffer from aggregations bias. Furthermore, this thesis sets up a real options model with imperfect competition to analyze how exchange rate movements affect dumping occurrence and antidumping-　jumping FDI as well as the social welfare of importing country. We consider the price dumping case and find that the effect of exchange rate movements on the probability of dumping occurrence seems asymmetric. In addition, if a government adopts an AD policy, it is shown that this policy might induce exporting firms to undertake AD-jumping FDI. Finally, we find that, if an AD policy induces exporting firms to undertake AD-jumping FDI, the policy might have a negative impact on the profits of local firms and the social welfare of the importing country as well, which is contrary to the prediction of the earlier literature on strategic trade policy.