Chuang, Wen-I; Liu, Hsiang-Hsi; Susmel, Rauli - In: Global Finance Journal 23 (2012) 1, pp. 1-15
We use a bivariate GJR-GARCH model to investigate simultaneously the contemporaneous and causal relations between trading volume and stock returns and the causal relation between trading volume and return volatility in a one-step estimation procedure, which leads to the more efficient estimates...