The recent drop in business activity has led some financial entities to reduce personnel in their financial divisions, according to information released today. For example, Credit Suisse will cut 600 jobs, according to The Wall Street Journal, and Barclays will lay off 100 workers this month in addition to the 600 that were already laid off in January.Goldman Sachs will also reduce its staff, according to the newspaper, for a 5% annual reduction by the close of 2011.Shares of Credit Suisse are up 0.42% while Barclays is up 3.26% and Goldman Sachs rises 0.69% at the pre-open.S.B.