@inbook{Willis1988, author = {Willis, R.J.}, title= {A theory of the equilibrium rate of interest: Life cycles, institutions and population growth}, year = {1988}, editor = {Lee, R.D.}, editor = {Arthur, W.B.}, editor = {Rodgers, G.}, booktitle = {Economic Consequences of Alternative Population Patterns}, address = {Oxford}, publisher = {Oxford University Press}, pages = {106−138}, }