"Stop being a well-kept secret and start being the go-to choice Your reputation is what people say about you when you're not there. It's your most powerful asset for business growth, career enhancement and freedom of choice in many aspects of life. Yet too many people leave it to chance. They...

Engle's autoregressive conditional heteroscedasticity (ARCH) model has been used successfully to model volatility in modern financial data. Here the returns on 3% Consols traded on the London market from 1821 to 1860 are examined for timevarying conditional heteroscedasticity. The series...