expected shortfall

基本解釋

Expected shortfall (ES) is a new method for measuring market risk.
期望損失值是一種評(píng)估市場(chǎng)風(fēng)險(xiǎn)的新測(cè)度。
Just as a reminder, over the next 75 years the cost of making those tax cuts permanent would be roughly equal to the entire expected financial shortfall of Social Security.
這裡有一個(gè)提示，就是在未來75年裡，這些減稅法案在社會(huì)保險(xiǎn)金上預(yù)計(jì)釦除的差額對(duì)於所有人來講都是大概持平的，無論是窮人還是富人。
At last, as valve at Risk is unable to measure the risk exactly and lack of subadditive , therefore, it is suggested in the international that Expected shortfall should be used to measure risk.
基於風(fēng)險(xiǎn)價(jià)值不能準(zhǔn)確度量風(fēng)險(xiǎn)以及缺乏次可加性這些缺點(diǎn)，目前國際上有人提出用損失期望值來測(cè)量風(fēng)險(xiǎn)。

Last quarter, RIM updated its guidance for the year and mentioned an expected shortfall in BlackBerry sales along with a lower average selling price for the smartphones (see RIM Guides Lower, Stock Sensitive to Market Share Decline).
FORBES: BlackBerry-Vision: RIM Outlook Crucial As Earnings Loom
Demand there is still growing, but more slowly than expected, and the shortfall is exacerbated by Asian countries' eagerness to save dollars by running down oil stocks.
ECONOMIST: An oil bounce
Despite the downturn, the valley still has as many as 82, 000 fewer homes than it would need if it were to house all of its workers—a shortfall that is expected almost to double by 2010.
ECONOMIST: High-tech America

期望損失
預(yù)期不足
approach a coherent risk measure to overcome the shortfall of VaR. As a coherent measure of risk, Expected Shortfall will be a perfect risk measure for complementarity of VaR.
而預(yù)期不足(ES)是一種一致性風(fēng)險(xiǎn)度量方法,可以作爲(wèi)VaR方法的一個(gè)有傚的補(bǔ)充。
期望不足
期望虧空