, Amsterdam: North-Holland -- Findlay, Christopher and Tony Warren (eds.) (2000), Impediments to Trade in Services: Measurement … -- Francois, Joseph F. and Ian Wooton (2001), 'Trade and Competition in Shipping Services and the GATS', Review of International … and Carlos Braga (eds.) (2009), Trade Preference Erosion: Measurement and Policy Response, London: Palgrave MacMillan and …