Number of items: 2.
Laffont, Jean-Jacques (1987) Externalities. In: New Palgrave: A Dictionary of Economics Palgrave Macmillan. ISBN 0-935859-10-1
Laffont, Jean-Jacques (1987) Revelation of preferences. In: New Palgrave: A Dictionary of Economics Palgrave Macmillan. ISBN 0-935859-10-1