There are various models that students have to incorporate in these dissertations. A proper selection of models and appropriate alignment of justification is required while doing these tasks. Students with poor knowledge are not able to make a required selection of models and approaches. On the other hand, students have to determine an authentic application of models for a provided scenario or citation. They have to guess the necessary application of cost-push or cost pull for a given scenario. Besides, application of demand-side or supply-side theory is possible if students are well acquainted with the subject. These key criteria have to be taken into account while attempting the economics dissertations.