The authors advocate the use of "choice architecture" by businesses or governments to influence choices in ways that encourage choosers to make decisions in their best interest. They call it "libertarian paternalism".
But if we take an intergenerational and more integrated view of our macroeconomic policy challenges – and continuing with climate change as an example – we should be looking at our existing measures of debt sustainability against the investment required to manage the transition to net zero emissions by 2050.