Please answer the following question: Information: - In economics, an experience good is a product or service where product characteristics, such as quality or price, are difficult to observe in advance, but these characteristics can be ascertained upon consumption. The concept is originally due to Philip Nelson, who contrasted an experience good with a search good. - Phillip Jacob Nelson ( born 1929 ) is an emeritus professor at SUNY Binghamton , where he was Bartle Professor of Economics . He is noted for having been the first to observe the distinction between an experience good and a search good . Nelson obtained his doctorate in 1957 from Columbia University , with a dissertation entitled '' A Study in the Geographic Mobility of Labor '' . - In economics, a search good is a product or service with features and characteristics easily evaluated before purchase. In a distinction originally due to Philip Nelson, a search good is contrasted with an experience good. What entity does 'phillip nelson' has the relation 'given name' with?
A:
philip