The five-day workweek is a man-made structure that's only just over a hundred years old, and some believe that it might one day become a thing of the past. A pilot project in our neighbouring country Portugal of a four-day workweek is currently sparking some conversation here in Spain. This is a pilot project run by the Portuguese Government, in which 41 companies participated in adapting to a four-day workweek, with no wage-cuts and a reduction in hours and which has shown largely positive results. Here in Spain, Deputy Prime Minister, Yolanda Díaz, has spoken of the reduction of hours from forty to thirty-seven-and-a-half, but so far, the reduction of the work-week is something that has only been experimented with in similar pilot projects. To learn about the one currently taking place in Portugal, we spoke with Pedro Gomes, Professor in Economics at The University of London and one of the project's coordinators.