In addition to the problems mention

In addition to the problems mentioned above (same or similar functional forms from the previous literature), it is hard to judge why it is beneficial to make the additional assumptions and how realistic or innovative those assumptions are without more robust justification. Most of the results from this paper can be inferred if the appropriate assumptions are made, but it requires either empirical justifications or theoretical innovations to convince the readers to believe that there are enough contributions. Otherwise, the readers can think of this as a purely theoretical exercises which might be interesting for some but might be insufficient for understanding the real economy.