How does this article approach the study of schools of economics?

How does this article approach the study of schools of economics?

The main goal of this article is to present those theories that survived over time and that can inform us about current developments and economic policies. Thus, one cannot write  on the issue of economic thought without focusing on the major economists of the past, that is, Adam Smith, David Ricardo, Karl Marx, and J.M. Keynes. The aim is to explore some general lines of their theories with special focus on the ideas regarding labour as the central axis to conduct the analysis. Based on these principal proponents the article also touches upon the neoclassic, monetarists, institutionalists and new schools of economic thought.

Pedagogically speaking it is much more interesting, and at the same time a deeper understanding of schools is expected to be achieved following a logical–historical approach. This means that each school is presented in the historical context of its emergence and analysed according to a logical rather than ideological criteria.