The nature of mathematics defined by mathematicians is not fixed and invariant over time. Therefore, mathematicians’ changing philosophies affect economists’ vision as to what is a “rigorous” economic theory.

Joan Robinson's objection was not towards the axioms that were the foundation of Debreu’s general equilibrium theory but towards the mathematical logic itself.

What happened to the economic science in the post WW2 period according to Gérard Debreu?

According to Eucken, the state economic policy shall be focused on regulation, not on the guidance of the economic process

Ordoliberals generally acknowledged policy prescriptions by J. M. Keynes, and the German Wirtschaftswunder was caused by consistent management of aggregate demand.

According to Hein, ordoliberalism might work if it is backed by, and combined with, strong welfare institutions.

For ordoliberals, an economic policy which delivers economic growth was the best social policy.

The success of Ordoliberal policies was caused by

While Ludwig von Mises and other Austrian economists reject any positive role of the state, German Ordoliberals believe that a strong state is important.

Why the state should not intervene even in the midst of recessions according to Austrians?