Perhaps I can help my hon. Friend the Member for Luton, North (Mr. Carlisle) about jobs that might be lost. It is quite clear that the great success that Britain has had in attracting inward investment, particularly from Japan and the United States, is substantially attributable to companies from those countries wishing to locate in Britain because we are part of the single market and play a central role in the way that market operates and develops. I find it strange that my hon. Friend seems willing to ignore the almost universal view of industry that signing the Maastricht treaty would be a major advantage to industry and employment.