Re: Food is not only sustenance
"Productivity is not GDP per head it's GDP per hour worked."
Erm no it isn't. Local policies and employee preference can influence hours worked so it's a meaningless figure. What really matters to GDP is how much each person produces. So for instance France has an incredibly short working week so per hour makes more, but in terms of actually producing stuff per employee lags behind us...Ditto the USA - long hours and short holidays mean less per hour, but high per person GDP.