In the millionaire survey, Economics completed the top three (8.2 per cent), with business studies (5.9 per cent) and law (4.7 per cent) the next-most lucrative subjects.
At the very bottom of the 20-subject table were biology, psychology, and philosophy (all 0.6 per cent). History was 16th, underscoring a trend of traditionally academic subjects doing badly, though politics (1.3 per cent) fared a little better, placing 11th in the table.
Oliver Williams, Head of WealthInsight, said: "Wealthy individuals are often entrepreneurs and innovators who benefit from degrees that encourage new and smart thinking.
"It is therefore no surprise to see that a high number of scientific and financial degrees are studied by millionaires: Numerical degrees are a particular advantage when it comes to amassing a personal fortune.
"With the exception of the MBA and Business Studies, few of these degrees materialise as outright vocational pursuits. Most engineering graduates, for example, are not engineers but entrepreneurs. The same goes for most law and accountancy graduates who make their wealth in professions outside their degrees."