Science in the last few years has become increasingly global and colla
borative. The number of internationally coauthored papers has been inc
reasing steadily. We have counted internationally jointly authored pap
ers involving authors from the advanced countries and the Third World
countries, using SCI 1991. We have looked at the number of papers resu
lting from collaboration among authors residing in the countries of th
e North (e.g. EC and OECD countries), authors residing in the South (e
.g. India and Bangladesh, Mexico and Brazil, China and Pakistan) and p
apers resulting from collaboration between authors residing in the cou
ntries of the South and the North (e.g. India and UK, China and USA).
Despite its late start, China has published many more collaborative pa
pers with most Asian countries and the advanced countries of the West
except the UK than India - confirming the effectiveness of the open do
or policy of post-Mao China. Both India and China collaborate with USA
much more often in physics than in other areas, followed by clinical
medicine. However, India collaborates more with USA in chemistry than
China. In Indo-US and Sino-US collaborations, collaborating institutio
ns are mostly universities and institutes of higher learning in India
and USA, whereas in China several institutions under the Academies als
o take part. The percentage of collaborative papers involving authors
from India is even smaller than the percentage of journal articles ori
ginating from India. In general, papers resulting from international c
ollaboration appear in better journals and are cited more often than p
apers that are the outcome of local research.