In economics, models are built to answer specific questions. Each type of question requires its own type of models; in other words, it defines the requirements that a model should meet and thereby instructs how the models should be built. An explanation is an answer to a ‘why’-question. In...

In this chapter, we discuss a specific kind of progress that occurs in most branches of economics today: progress involving the repeated use of mathematical models. We adopt a functional account of progress to argue that progress in economics occurs through the use of what we call “common...

The development of David Ricardo’s economic theory of distribution -the laws that determine the share of output between the economic classes -depended on specific connections at several levels between two practicalsciences of the early 19th century, namely experimental agriculture andpolitical...