This paper investigates the statistical behaviour of high-frequency index data from the Athens Stock Exchange. We find that 1min observations on the General Index of the Main Market for the three month period from 1 June 1998 to 10 September 1998 are characterised by very short run persistence...

This paper investigates the statistical behaviour of daily gold price data from 1971 to 2002. We find that the observations are characterised by short run persistence and scaling with a break point of 15 days, i.e., three working weeks. Daily returns are highly leptokurtic, with multi-period...

We study the performance of the euro/Swiss franc exchange rate in the extraordinary period from September 6, 2011 and January 15, 2015 when the Swiss National Bank enforced a minimum exchange rate of 1.20 Swiss francs per euro. Within the general framework built on geometric Brownian motions...

In this paper the authors set out to date-stamp periods of US housing price explosivity for the period 1830–2013. They make use of several robust techniques that allow them to identify such periods by determining when prices start to exhibit explosivity with respect to its past behaviour and...