資本資產(chǎn)定價(jià)模型（CAPM）是理解風(fēng)險(xiǎn)-回報(bào)權(quán)衡的有用工具，但它遠(yuǎn)非完美。
"The past is always with us, whether we acknowledge it or not."
Education is the most powerful weapon which you can use to change the world.