[1] Univ Calif Santa Cruz, UCSC E2, Santa Cruz, CA 95064 USA
[2] Natl Bur Econ Res, UCSC E2, Santa Cruz, CA 95064 USA
[3] Univ London, Dept Financial & Management Studies, SOAS, London WC1H 0XG, England
[4] Asian Dev Bank, Econ & Res Dept, Macroecon & Finance Res Div, Mandaluyong City 1550, Metro Manila, Philippines