According to the Independent, introducing the change, Labour ministers said that no longer forcing pub-goers to finish drinks before 11 pm would lead to more relaxed, Continental-style drinking.
Colin Green and Maria Navarro Paniagua of Lancaster University's Economics Department studied the impact on workplaces for the report, "Play Hard, Shirk Hard? The Effect of Bar Hours Regulation on Worker Absence," the report said.
They compared worker absences in England and Wales after the change with Spain, where opening hours were reduced over the same period.
The authors concluded that in England and Wales 'longer opening hours increased absenteeism, while in Spain shorter opening hours reduced absenteeism', the report added.