The classic ‘higgledyâ€piggledy growth’ studies by Little (1962), Rayner and Little (1966), Brealey (1967), and Lintner and Glauber (1967) essentially reported that earnings changes over time appear to be randomly distributed. More recently Fuller, Huberts and Levinson (1992)...

This paper gives an overview about the sixteen papers included in this special issue. The papers in this special issue cover a wide range of topics. Such topics include discussing a class of tests for correlation, estimation of realized volatility, modeling time series and continuous-time models...

Mean-variance optimisation has been roundly criticised by financial economists and practitioners alike, leading many to advocate a simple 1/N weighting heuristic. We investigate the performance of the Markowitz technique conditional on investor forecasting ability. Using a novel analytical...