In a brilliant career spanning almost five decades, Sir Clive Granger has made numerous contributions to time series econometrics. This paper reappraises his very first paper, published in 1957 on sunspot numbers.

This is a corrigendum. We correct the mistakes in Basci and Caner, "Are Real Exchange Rates Nonlinear or Non-stationary? Evidence from a New Threshold Unit Root Test" 2005, vol.9.4, Article 2.

This is a corrigendum. We correct the mistakes in Basci and Caner, "Are Real Exchange Rates Nonlinear or Non-stationary? Evidence from a New Threshold Unit Root Test" 2005, vol.9.4, Article 2.