本研究以1992年第1季至2013年第2季之房價市場指數、道瓊工業指數與S&P 500指數之季資料探討三種指數的互動,使用共整合檢定是否存在長期穩定關係及Granger因果關係檢定之連動性關係。 實證結果發現,在三種指數間不存在共整合關係,表示變數間不存在長期穩定關係;在Granger因果檢定中,在1%的顯著水準下,道瓊工業指數與S&P 500指數是具有雙向因果關係;在10%的情況下,S&P 500指數與房價市場指數是具有單向因果關係,這表示S&P 500指數對於房價市場指數存在領先效果的關係。就房價而言與道瓊工業指數及S&P 500指數間為獨立關係。
This paper explores whether the correlation and the lead-lag relationship between the U.S real estate data, Dow Jones Index and S&P 500 Index. The sample period is from 1992 Q1 to 2013 Q2. From the empirical results, Johansen cointegration test shows that the U.S real estate data, the Dow Jones Index and the S&P 500 Index to not exist long run stable equilibrium relationship. Granger causality test shows the following results. At the 1% level, there exists bidirectional feedback causality in the Dow Jones Index and the S&P 500 Index. At the 10% level, the S&P 500 Index is ahead of the U.S real estate data. U.S real estate data between the Dow Jones Index and S&P 500 Index is an independent relationship.