Sohair:
I know a little about comparative education, having submitted an MEd research thesis on the teaching of English and French in the schools of the German Democratic Republic back in the mid-1980s. I made a point then of studying the authorities on comparative education, including Marc-Antoine Jullien de Paris who founded the discipline, and such luminaries as Kandel and Mallinson. One of the best introductions to the subject of comparative education is Bereday's "Comparative Method in Education", which explains, with examples, how to analyse and evaluate an element of education in one, two or three countries. "Compare" and "Comparative Education" are two journals in the field worthy of attention.
I'm afraid I'm at much more of a loss when it comes to the concept of globalisation as applied to comparative education and of course it's a relatively new idea which would not have been familiar to the comparative educators I listed. My advice is that you study the principles and methods of comparative education first and then, so armed, approach the globalisation issue. I wish I could help more.
David Wilson
http://www.specialeducationalneeds.com/