2001-2018 股市房產的綜合表現 - 股票

By Rosalind
at 2019-10-30T12:16
at 2019-10-30T12:16
Table of Contents
我這邊使用的數據
是台股加權指數 從2001-2018
房地產則是用台北的信義房價指數和地價指數
因為地價指數每半年公布一次,所以以下數據都是每六個月(半年)的數值,
包含報酬率和標準差
台指: 平均半年報酬率 3% 標準差 0.13
信義指數 : 平均半年報酬率 3.1% 標準差 0.045
地價指數: 平均半年報酬率 1.5% 標準差 0.02
一個考量最優化夏普率的投資組合
預測結果為 0: 0.45 : 0.54 (股票:台北建物:台北土地)
這個理論預測似乎和我目前為止研究的公職人員財產申報結果吻合
這部分的數據可以參考本版的這篇文章 #1Tf9lqo7
也就是如果政治人物的房產來源是以台北為主的
他們幾乎9成五的投資都會放在到房地產上
少部分會持有現金
但現金可考慮成無風險資產 所以持有比例大小並不會改變夏普率
結論
按照現代投資組合理論 過去20年的最佳投資方式為
把所有的錢投到台北房地產上
持有少部分的現金部位
以上一點分享
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