Microeconomics

A producer uses raw materials, capital, and labor to produce goods and services. Here, we will present a simple model for how they decide how much to produce and which technology to use for production. A large part of producer theory is very similar to consumer theory.

Definition of Public and Private Goods

A public good is a good that fulfills both of the following two criteria: Nonrival. One individual’s consumption of the good does not affect any other individual’s consumption of the same unit of the good. Examples include lighthouses, television, parks, military defense, and streets with little traffic.

If the firm rents its capital, the problem of how much to rent is, more or less, the same as the problem of how much labor to use. It rents precisely so much that the rental rate becomes equal to the marginal revenue product of capital (compare to Labor), i.e. until

To produce goods and services, a firm uses raw materials, labor, and capital. We will now look at the market for labor. The workers sell their labor, or alternatively the sell their leisure time, for a wage, and their supply depends on their valuations of leisure and wage, respectively.

Before we go on to the other market forms, oligopoly and monopolistic competition, we will introduce a tool called game theory. Game theory is a much younger tool than most of the others we have discussed so far and has become a large field of research. Here, we will just present two different games.

These will get to represent the two different groups of games: normal form games and extensive form games. We will later use these tools in the analysis of oligopolies.