=================== HES POSTING ======================= I read recently an account of the process by which the concept of hysteresis entered economics, but cannot remember where. Blanchard and Summers(1987) cite the Phelps (1972) volume. Does anyone have any more information? Thanks Robert Leeson [log in to unmask] ============ FOOTER TO HES POSTING ============ For information, send the message "info HES" to [log in to unmask]