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NYC Taxi and Limousine Commission. New York City: 2014."},{"key":"ref22","unstructured":"NYC Taxicab Factbook 2006. The New York City Taxicab Fact Book. Brooklyn, NY: Schaller Consulting, 2006."},{"key":"ref23","article-title":"Tipping in restaurants and around the globe: An interdisciplinary review","author":"M Lynn","year":"2006","journal-title":"Tipping in restaurants and around the globe: An interdisciplinary review"},{"issue":"3","key":"ref24","doi-asserted-by":"crossref","first-page":"348","DOI":"10.1086\/209074","article-title":"Credit cards as spending facilitating stimuli: A conditioning interpretation","volume":"13","author":"RA Feinberg","year":"1986","journal-title":"Journal of consumer research"},{"issue":"10","key":"ref25","doi-asserted-by":"crossref","first-page":"1084","DOI":"10.1108\/03068290310492878","article-title":"The implications of tipping for economics and management","volume":"30","author":"OH Azar","year":"2003","journal-title":"International Journal of Social Economics"},{"issue":"1","key":"ref26","doi-asserted-by":"crossref","first-page":"324","DOI":"10.1257\/000282803321455322","article-title":"Winter 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