And as for the key metric - the key metric is happiness of the stakeholders, the people who get to decide on things, i.e. rich and powerful. Overall growth lets

And as for the key metric - the key metric is happiness of the stakeholders, the people who get to decide on things, i.e. rich and powerful. Overall growth lets them achieve that in an optimal way (because it doesn't require poor to become poorer, and even increases acceptable inequality through "Inequality possibility frontier")