Kelton publishes formally as well as in the popular press and appears on mass media. She has been a frequent guest on television and radio, including MSNBC's "Up with Chris Hayes" and NPR's "On Point". Kelton has had opinion pieces published in the Los Angeles Times and the New York Times. "How We Think About the Deficit Is Mostly Wrong" appeared in The New York Times. Kelton wrote the article, "Congress can give every American a pony (if it breeds enough ponies)," which appeared in The Los Angeles Times.