My Bottom Line: Ralph Oppenheimer, Stemcor

Ralph Oppenheimer is the chairman of the steel trading company Stemcor.

He says ethics are crucial in business, and you will be more likely to succeed if you treat people well.

Ralph appeared on The Bottom Line which is broadcast on BBC Radio 4 and BBC World Service. Subscribe to the podcast or watch it on the BBC News Channel.

Find more business wisdom from other chief executives on the My Bottom Line website.