The essay "Matewan and Norma Rae- Feudalism and Capitalism: Examined" by Heather Warner and the essay written by Antonia Massa, both made an analysis of the films in the light of the economical concepts of Feudalism and Capitalism.
As to approach, their difference lies in the extent or depth of the study.
But of course, the additional information given by Warner gave the reader a deeper understanding of both economic concepts.
As to form, basically they are the same having an introduction, body and conclusion. Both writers showed a good command of the English language and grammar. They differ in that Massa did not have a title. A title is important because it binds the entire work into a cohesive whole.
In the Matewan film Warner through her research used a guideline or series of questions to determine what economic concept is being used. Warner was able to show that access to resources needed to produce goods allocated, process of obtaining labor, the organization of the production process, the transfer of the produced output onto the consumer hands and the surplus obtained all comes from and redounds to the benefit of the Stone Mountain Coal Company. It is the company that provided the jobs and the materials needed. Workers were imported, mostly foreigners, coming from outside the town. They were brought in by the company with contracts to work only for the company. The company pays them but after deducting their rent and goods, there is nothing left to live on. ...