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Variance ratio tests of random walk: An overview
This paper reviews the recent developments in the field of the variance-ratio (VR) tests of the random walk and martingale hypothesis. In particular, we present the... -
The random walk hypothesis for Chinese stock markets: Evidence from variance ...
This study examines the random walk hypothesis for the Shanghai and Shenzhen stock markets for both A and B shares, using daily data over the period 1992-2007. The...
