Dear Luis Diego Salas Ocampo sir, Hola. Cómo está? (Sorry, I don't know Spanish more than this much !!).  Congrats for picking up a very interesting topic. I do not think academic degrees at public universities in one country would ever serve as a barrier to entry to other international programmes. For example, I've done my MBA (1997) from Nepal's pioneer and largest university (of course, the only central university of my country in the public sector). Then I faced no entry problem to do my PhD in Management (completed in 2014) at Jodhpur National University of India, my neighbouring country. In the mean time, I have also done a trade-management related course under the Fulbright Scholarship (of course international programme) in the US in 2002. 

If degrees from public universities were to be erected as entry barriers to international programmes, the notion would only constrain the universality of academic programmes. What you say, sir?

Dear Arhan and George thank you very much to you both for your answers . I think of these two trends in marketing programs of study. The first is where relatively large and prestigious institutions entering countries to generate its offer graduate programs . The second is when establishing strategic alliances with national universities. My question was in the sense of creating barriers through agreements to pass domestic market not only legal but commercial part . Is a barrier to entry by indirect bidders internal agreements .

Dear Arhan

Hello, thank you very much for the response. In some countries, the commercialization of postgraduate programs increases, but their qualities decrease. The offer is atomized. In addition, there are state commissions that lead to accreditation processes for degrees that may be long and that in a few cases may generate negative consequences for those who have studied elsewhere. How do accreditation processes operate in your country? What is the difference in quality between national and international programs? Are they face-to-face or is there an increase in virtual postgraduate programs? Thanks for your reply again Diego