Jämför metoder
Granska de valda metoderna sida vid sida; rader som skiljer sig är markerade.
| HAR-RV-modellen för realiserad volatilitet× | Vanligaste minsta kvadratmetoden (OLS) Regression× | |
|---|---|---|
| Ämnesområde≠ | Finansiell ekonomi | Ekonometri |
| Familj | Regression model | Regression model |
| Ursprungsår≠ | 2009 | 2019 |
| Upphovsperson≠ | Fulvio Corsi | Wooldridge (textbook treatment); classical least squares |
| Typ≠ | Linear time-series regression for volatility | Linear regression |
| Ursprungskälla≠ | Corsi, F. (2009). A Simple Approximate Long-Memory Model of Realized Volatility. Journal of Financial Econometrics, 7(2), 174–196. DOI ↗ | Wooldridge, J. M. (2019). Introductory Econometrics: A Modern Approach (7th ed.). Cengage Learning. ISBN: 978-1337558860 |
| Alias | HAR-RV, heterogeneous autoregressive realized volatility, Corsi HAR model, HAR-RV Modeli (Heterogeneous Autoregressive Realized Volatility) | ordinary least squares, classical linear regression, linear regression, en küçük kareler regresyonu |
| Närliggande | 5 | 5 |
| Sammanfattning≠ | The HAR-RV model, introduced by Fulvio Corsi in 2009, forecasts realized volatility by decomposing it into daily, weekly, and monthly components. It is a simple linear regression that mirrors how market participants with different investment horizons react to volatility, and it naturally captures the long-memory behaviour of volatility. | Ordinary Least Squares is the classical linear regression method that explains a continuous outcome as a linear combination of predictors. It estimates the coefficients by minimising the sum of squared residuals, and under the Gauss-Markov assumptions these estimates are the best linear unbiased estimator (BLUE). |
| ScholarGateDatamängd ↗ |
|
|