While readers today might think of Jane Austen novels as the equivalent of 18th century bodice rippers, money, wealth, and economics played a major role both in their creation and in their narrative. Austen wrote as much for financial benefit as for art. Her characters, meanwhile, are as much interested in financial solvency as they are with marriage, and for good reason: Adam Smith had just invented modern economics.
Shannon Chamberlain explores the economics of Austen further at the Atlantic.