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1 Markets I: The Ecosystem and Exchange-Traded Marketsالأسواق عبر الإنترنت 2 Markets II: Rates, FX and Creditالأسواق عبر الإنترنت 3 Markets III: Commodities, Energy and Cryptoالأسواق عبر الإنترنت 4 Quantitative Methodsالأساليب عبر الإنترنت 5 Derivatives and Volatilityالمشتقات عبر الإنترنت 6 Rates, Credit, XVA and Riskالفائدة والائتمان والمخاطر عبر الإنترنت 7 Research Craft: Predictors, Backtests, Measurement, Portfoliosالبحث عبر الإنترنت 8 Strategies I: Equities and Futuresالاستراتيجيات عبر الإنترنت 9 Strategies II: Volatility, Relative Value, Macro and the Bank Desksالاستراتيجيات عبر الإنترنت 10 Microstructure and Executionالتنفيذ عبر الإنترنت 11 Market Making and High-Frequency Tradingصناعة السوق عبر الإنترنت 12 Machine Learning for Marketsتعلم الآلة عبر الإنترنت 13 Low-Latency Softwareالتكنولوجيا عبر الإنترنت 14 Networks, Hardware and Trading Infrastructureالتكنولوجيا عبر الإنترنت 15 Research, Data and Risk Platformsالتكنولوجيا عبر الإنترنت 16 The Desk and the Firmالشركة عبر الإنترنت 17 The Industry: Firms, Roles and Careersالمسارات المهنية عبر الإنترنت 18 The Interview Bookالمسارات المهنية عبر الإنترنت
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Quantitative Finance · المسرد

ما معنى Year-on-year convexity adjustment؟

Definition 11.3 Rates, Credit, XVA and Risk · الفصل 11 — Inflation Derivatives

The year-on-year convexity adjustment of period ii is the difference between ENTi[I(Ti)/I(Ti−1)]\E^{T_i}_N[I(T_i)/I(T_{i-1})] and the ratio of forward indices I(0,Ti)/I(0,Ti−1)I(0,T_i)/I(0,T_{i-1}).

Annual inflation implied by zero-coupon swaps (ratio of forward indices) and the model’s expectation of each year’s change, which a year-on-year swap pays. The gap, the convexity adjustment, grows with the start of the year. Data: illustrative sterling curves, Jarrow–Yildirim parameters of ; the chapter’s tutorial.
Figure 11.2. Annual inflation implied by zero-coupon swaps (ratio of forward indices) and the model’s expectation of each year’s change, which a year-on-year swap pays. The gap, the convexity adjustment, grows with the start of the year. Data: illustrative sterling curves, Jarrow–Yildirim parameters of Example 11.5; the chapter’s tutorial.

أمثلة

Example 11.5 (Sterling year-on-year convexity)

On illustrative sterling curves (SONIA zero rates of 3.6–4.2%, RPI zero-coupon swaps of 3.2–3.4%) with κ=5%\kappa=5\%, σR=80\sigma_R=80 basis points, σI=1.5%\sigma_I=1.5\% and ρ=0.2\rho=0.2, the adjustment is zero for the first year, −1.8-1.8 basis points for the fourth, −15.2-15.2 for the tenth (forward 3.42%, year-on-year expectation 3.27%) and −42.5-42.5 for the nineteenth (Figure 11.2). The ten-year year-on-year swap rate is 3.22% against a ten-year zero-coupon rate of 3.28%. A simulation of the model reproduces the tenth year’s expectation, 1.03268, at 1.03277 with a standard error of 0.00013.

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