Asem, Ebenezer; Kaul, Aditya - In: The European Journal of Finance 14 (2008) 3, pp. 225-242
The New York Stock Exchange extended its trading hours by 30 min in 1974 and in 1985; the first extension resulting in a delayed close and the second in an early open. We find a shift in volume to the new period after each extension. Additionally, there is a larger increase in volume after the 1985...