@Frank *********
days off has nothing to do with productivity in relation to economic growth. Efficiency in production contributes to economic growth by increasing efficiency in the same given time frame, not by working longer hours. If you become more efficient by making 150 items an hour instead of the 100 you were making before in that same hour, that is an economic growth in productivity, not by working an extra 4 hours to produce the 50 product increase. Time off from work has no bearing on economic productivity.