Utilize the input text as a context reference, choose the right relationship between Lehman Brothers and investment from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

The U.S. division, largely the former Lehman Brothers business bought by Barclays in 2008, is far more profitable than investment banking in Asia and Europe.

Answer: industry