A research paper may take several months to understand for a beginner, based on its complexity. Although a student is good with the required background in that broad domain, she has to understand several other research papers in backward chain, which takes a lot of time.
So, I feel that PhD is not a degree which has an inherent property of rushing.
If it is true, then why do most of the supervisors do rush their students instead of leaving them for sufficient amount of time? Is it a phenomenon in developing countries only or is it a global phenomenon?
Note: Rushing in the question refers to the phenomenon of asking student to perform a task (including publishing, comprehension) given insufficient amount of time, which may cause tension, panic or sense of urgency in students.