Romain Kroes and others interested in his posting: Have a look at the following: Ference Janossy, 'The End of the Economic Miracle: Appearance and Reality in Economic Development', International Arts and Sciences Press, White Plains, NY, 1971. (Also in German: 'Das Ende der Wirtschaftswunder..', Verlag Neue Kritik, Frankfurt/Main, 1966. Janossy has a very interesting discussion of 'limits': for him, the main limit lies in the capacity of the labour force to actually realise the productivity growth which in theory should arise from higher levels of investment. Hugo Radice [EMAIL PROTECTED]