Slightly confused by the definition, but i think high wages increase productivity, so green indicates "winners".
Definition :
Regional GVA at basic prices by industry is equal to the sum of taxes less subsidies on production, wages and salaries, employers’ social contributions, consumption of fixed capital and net operating surplus.
Could be
Regional GVA at basic prices by industry is equal to the sum of taxes less (subsidies on production, wages and salaries, employers’ social contributions, consumption of fixed capital and net operating surplus.)
But i read it as:
Regional GVA at basic prices by industry is equal to the sum of (taxes less subsidies on production) , wages and salaries, employers’ social contributions, consumption of fixed capital and net operating surplus.
Which is more natural i think