Perhaps a rationalist, both in economics and politics. https://en.wikipedia.org/wiki/Rationalism Besides, stoicism is useful. https://en.wikipedia.org/wiki/Stoicism I also think, modelling and systemic/holistic approaches are important in making policies. https://en.wikipedia.org/wiki/World3 https://en.wikipedia.org/wiki/Population_dynamics https://en.wikipedia.org/wiki/Human_population_growth