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Microeconomics begins with two fundamental laws that describe how buyers and sellers behave in a market. The law of demand states that, ceteris paribus, as the price of a good rise...
Elasticity measures how strongly one variable responds to another, and it is one of the most important tools in applied microeconomics. Price elasticity of demand (PED) is defined...
Behind every demand curve lies a model of how individual consumers make choices. The starting point is the concept of utility, the satisfaction a consumer derives from goods. A uti...
On the production side of the economy, firms combine inputs to produce output, and their decisions hinge on the costs of doing so. Costs come in two forms. Explicit costs are direc...
How firms compete depends on the structure of the market in which they operate. In perfect competition, there are many buyers and sellers, products are homogeneous, entry and exit...
When a market contains only a few significant competitors, each firm's profit depends on what its rivals do, and the natural framework is game theory, the study of strategic decisi...
Competitive markets are remarkably efficient, but they do not always produce socially desirable outcomes. A market failure occurs when the market equilibrium does not maximize tota...