Education
He earned a bachelor"s degree in economics from Temple University and his master"s and Doctor of Philosophy in economics from George Washington University.
He earned a bachelor"s degree in economics from Temple University and his master"s and Doctor of Philosophy in economics from George Washington University.
He was among the National Association of Business Economists and one of the founders of the American Statistical Association. Greenwald joined McGraw-Hill for in 1947 as a staff economist in the magazine division, retiring in 1978 as vice president for economics of the McGraw-Hill Publications Company. In retirement he was an adviser to Japanese executives and government officials as well as editor of the last two editions of the economics encyclopedia.
He also wrote and edited seven books and edited the McGraw-Hill Dictionary of Modern Economics.