and Ph.D. degrees at the University of Cambridge, the last with a 1975 thesis entitled Models of Consumer Demand and Their Application to the United Kingdom under the supervision of Richard Stone.

At Cambridge, he was later a fellow at Fitzwilliam College and a research officer working with Richard Stone and Terry Barker in the Department of Applied Economics.

The Royal Swedish Academy of Sciences said that economic policy intended to reduce poverty could only be designed once individuals' consumption choices were understood, saying, "More than anyone else, Angus Deaton has enhanced this understanding.

By linking detailed individual choices and aggregate outcomes, his research has helped transform the fields of microeconomics, macroeconomics, and development economics".

[15] Deaton's first work to become known was Almost Ideal Demand System (AIDS), which he developed with John Muellbauer and published in The American Economic Review (AER) in 1980.

[17] In 2015, Anne Case and Angus Deaton published the paper "Rising morbidity and mortality in midlife among white non-Hispanic Americans in the 21st century" in the Proceedings of the National Academy of Sciences.

In the article, Case and Deaton highlight the rising all-cause mortality rate among middle-aged white non-Hispanic Americans in the past decade, a recent trend that was unique among "rich" countries.

Further, they discovered that the increasing mortality rates among white non-Hispanics could be classified as "deaths of despair", most notably drug and alcohol poisonings, suicide, and chronic liver diseases and cirrhosis.

[22][23] Likewise, the Washington Post and a Gallup Poll showed strong correlation between support for Trump and higher death rates.