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  • 學位論文

台灣共同基金經理人意圖性風險承擔行為之研究

A Study of the Mutual Fund Managers’Intended Risk-Taking Behavior in Taiwan

指導教授 : 王祝三
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摘要


基金經理人的風險承擔行為會受到許多不同的動機影響,其中最主要的兩種動機則為報酬動機與雇用動機。但是,過去的相關研究普遍忽略雇用動機對基金經理人風險決策的影響。雖然近來Kempf et al.(2009)發現,雇用動機存在於美國基金市場,但台灣基金市場的發展階段不同於美國市場,仍處於蓬勃發展之際。而Kempf et al.認為當企業處於蓬勃發展之階段,雇用動機對於經理人而言,應為次要之考量。因此,本文以台灣市場之樣本來檢測雇用動機是否存在於國內基金市場。 此外,過去大部分相關研究係使用事後的衡量方式,並無法區別出基金的已實現風險與非預期風險,而可能會產生較不精確之實證結果(Chevalier and Ellison, 1997; Kempf et al., 2009)。故本文採用事前衡量的指標,亦即「意圖性風險調整變動」,並且利用基金持股比率計算出下半年基金的意圖性風險,來重新檢測台灣基金經理人的風險承擔行為。 本文發現在多頭市場期間,上半年績效較差的基金經理人,在下半年時其所增加的基金風險會較多。並且,在更多頭市場期間,其增加基金風險之行為會更為明顯。本文之研究結果證實了Kempf et al.(2009)之論點,亦即當企業處於蓬勃發展之階段,雇用動機對經理人而言應為次要之考量。所以即便是在空頭市場期間,雇用動機對經理人之影響力,並無法明顯高於報酬動機,而使得雇用動機不存在於台灣基金市場。

並列摘要


In making their investment decisions, fund managers usually face two main incentives. One is compensation incentives and the other is employment incentives. But, employment incentives are generally neglected in the previous studies on risk-taking behavior of fund managers. Although, Kempf et al.(2009) recently confirmed that employment incentives exist in the US mutual fund market. But Kempf et al. argued that employment incentives are minor concerns for managers in the boom stage of a fund market. Therefore, the purpose of this paper is to examine whether employment incentives exist in the Taiwan mutual fund market, which is in its boom stage. Further, most of past studies adopted the ex-post measure, which did not distinguish between the realized change in risk and unexpected changes in risk (Chevalier and Ellison, 1997; Kempf et al., 2009). And it might result in more inexact empirical results. Thus, this paper adopts the ex-ante measure, which called “intended risk adjustment change”, and portfolio holdings of mutual funds to compute the intended risk in the second half of the year that reexamine the risk-taking behavior of mutual fund managers in Taiwan. The evidence of this paper shows that fund managers with worse midyear performance in a bull market tend to increase more risk. And the more bullish the market is, the more pronounced is the behavior of increasing risk. In addition, this paper confirms that employment incentives do not exist in the Taiwan mutual fund market, which is consistent to the viewpoint of Kempf et al.(2009).

參考文獻


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2.王健安,2001,「年度競賽觀點下共同基金經理人風險調整行為之
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