Gerald Rosenfeld is an American businessman, academic, and investment banker. The United States of America —commonly referred to as the A businessperson (also businessman or businesswoman) is someone who is employed at usually a profit-oriented enterprise, or more specifically someone Investment banks profit from companies and governments by raising money through issuing and selling Securities in the Capital markets (both equity and He is well known as the former Head of Investment Banking of Lazard and as the CEO of Rothschild North-America. Lazard Ltd ( is the parent company of Lazard LLC a New York -based independent Investment bank with approximately 2400 employees in 41 cities across 24 countries A chief executive officer ( CEO) or chief executive is typically the highest-ranking corporate officer ( executive) or administrator N M Rothschild & Sons (more commonly known simply as Rothschild) is the Investment bank company of the Rothschild family. He is an Adjunct Professor of Finance at New York University Stern School of Business. The meaning of the word professor ( Latin: professor, person who professes to be an expert in some art or science teacher of highest rank) varies The field of finance refers to the concepts of Time, Money and Risk and how they are interrelated The Leonard N Stern School of Business is New York University 's (NYU Business school.