What is the relationship between Lehman Brothers and investment in the context of the input sentence. Choose an answer from: 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.

At the time, global lenders were beefing up their capital-markets units in New York with a focus on the booming business to compete with U.S. investment banks such as Lehman Brothers Holdings Inc. and Bear Stearns Cos.

Answer: industry