Fig. 3
From: Cities and countries in the global scientist mobility network
a The Country to country mobility flows for the mobility network of 2004 with 5 year of buffer. On the main diagonal we find the number of all scientists who did not leave the country (i.e. the national scientist population). The rows are the source and the columns are the destination, with the color indicating the number. The countries are sorted according the size of their scientist population in the period 1999 to 2004. b Probability to leave country for selected countries and global mean (1990 to 2004). Note: the “country” is the country from which the move originates, not necessarily the nationality of the author