euro-Mediterranean Migration futures 65
1.5.4 Freedom and democracy
When Martin and Taylor (1996: 58) hypothesised that emigration tends to
decrease steeply if the income differential between sending and receiving
countries declines to f igures between 1:4 and 1:5, they emphatically added
Figure 1.17 GDP per capita, US$, 1970–2006
01,0002,00 03,0004,0005,0006,0001970197319761979198219851988199119941997200020032006Per capitaGDP Morocco
Egypt
TurkeySource: International Monetary Fund
Figure 1.18 Per capita GDP, in US$ adjusted for purchasing power parity,
1980–2008
05,00010,00015,00020,00025,00030,00035,000198019821984198619881990199219941996199820002002200420062008Per capitaGDP purchasing power parityGermany
Spain
Poland
Turkey
Morocco
EgyptSource: International Monetary Fund