RT Generic T1 Parsimony and omitted factors: the airline model and the Census X-11 assumptions A1 Espasa, Antoni A1 Galián, R. PB Servicio de Estudios del Banco de España YR 1985 FD 1985 LK https://hdl.handle.net/10016/3353 UL https://hdl.handle.net/10016/3353 LA eng DS e-Archivo RD 17 jul. 2024