Over that period investment banks have evolved from staid partnerships into huge, publicly traded conglomerates before stumbling, and in some cases collapsing, last year.

• 在这期间，在去年投行业受挫，甚至彻底崩溃之前，他们从一种稳健的伙伴发展成为巨大的，公开交易的混业经营体。