قارن الطرق

	القيمة المعرضة للخطر (VaR)	القيمة المعرضة للخطر المشروطة (النقص المتوقع)
المجال	التمويل	التمويل
العائلة	Regression model	Regression model
سنة النشأة	2007	2000
صاحب الطريقة	Jorion (textbook benchmark); popularised by RiskMetrics / J.P. Morgan	Rockafellar & Uryasev (2000); Acerbi & Tasche (2002)
النوع	Financial risk measure	Coherent tail-risk measure
المصدر التأسيسي	Jorion, P. (2007). Value at Risk: The New Benchmark for Managing Financial Risk (3rd ed.). McGraw-Hill. ISBN: 978-0071464956	Rockafellar, R. T. & Uryasev, S. (2000). Optimization of Conditional Value-at-Risk. Journal of Risk, 2(3), 21-41.
الأسماء البديلة	VaR, value-at-risk, delta-normal VaR, historical simulation VaR	CVaR, expected shortfall, average value-at-risk, tail VaR
ذات صلة	5	5
الملخص	Value at Risk is a financial risk measure that estimates the maximum loss a position or portfolio could suffer over a fixed holding period at a given confidence level. It is the standard benchmark in risk management and regulatory capital calculations, developed in the textbook tradition of Jorion (2007) and the Basel market-risk framework.	Conditional Value-at-Risk (CVaR), also called Expected Shortfall, is a coherent tail-risk measure that quantifies the conditional expectation of losses beyond the Value-at-Risk threshold. It was introduced for optimization by Rockafellar and Uryasev (2000) and shown to be coherent by Acerbi and Tasche (2002), and it has replaced VaR as the regulatory standard under Basel III/IV.