by Li, D., Linton, O. B., Zhang, H.
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Suggested foundations for volatility models and surfaces and financial time series. Specialist prerequisites vary by paper.
Follow diffusion-based models and their assumptions.
Separate conditional volatility from observed returns.
Check whether a relationship can be estimated consistently over time.
Read the fitted relationship and its residuals.
Study a correlated stochastic-variance model.
Interpret prices across strikes and expiries.
Study long-run relationships without confusing them with correlation.
Start in discrete time, move to Brownian motion, then read the original pricing argument and simulate it.
Choose a reproducible strategy, specify the trading rule, and test what remains after costs and estimation uncertainty.