TY - ADVS AU - TI - American economic review [v.89/1 - v.90/4, Mar. 1999 - Sept. 2000] U1 - Misc PY - 2000///] CY - PB - American Economic Association N1 - March 1999-September 2000, Vol. 89, No. 1 - Vol. 90, No.4a Journal Of The American Economic Association ER -