This week we covered the marginalist revolution, looking at how the marginal utility theory of value provided a clear break with what Marx had defined as the "Classical School" (Smith, Ricardo, Say, Malthus, MIll). We also covered an economist such as Alfred Marshall, which was more nuanced in its relationship with the early XIX century tradition. Looking at Marshall and the marginalists, Thorstein Veblen coined the term "neo-classical school" to define the new basic framework of economics.

What were the main differences between the classical and neoclassical schools? Which of the theoretical innovations of the marginalist revolution did you find more relevant going forward?