RT Conference Proceedings T1 Quasi-Maximum likelihood estimation of stochastic variance models A1 Ruiz Ortega, Esther PB London School of Economics and Political Science YR 1992 FD 1992 LK https://hdl.handle.net/10016/4872 UL https://hdl.handle.net/10016/4872 LA eng NO ESRC Econometric Study Group Conference Bristol, 1992 DS e-Archivo RD 19 may. 2024