Robert F. Engle

Robert F. Engle is an American economist best known for his work on analyzing and modeling financial time series data, particularly in understanding how volatility—fluctuations in asset prices—changes over time. In 2003, he received the Nobel Prize in Economic Sciences for developing the Autoregressive Conditional Heteroskedasticity (ARCH) model, which allows economists and analysts to better forecast market behavior and risk. His contributions have significantly influenced finance, particularly in assessing risk and making investment decisions, as they provide insights into how past price movements can affect future volatility.