# Notes in micreconomics theory

Outside of macroeconomic theory, these topics are also important to all economic agents including workers, consumers, and producers. To economists, rationality means an individual possesses stable preferences that are both complete and transitive. The technical assumption that preference relations are continuous is needed to ensure the existence of a utility function.

Although microeconomic theory can continue without this assumption, it would make comparative statics impossible since there is no guarantee that the resulting utility function would be differentiable.

Microeconomic theory progresses by defining a competitive budget set which is a subset of the consumption set. It is at this point that economists make The technical assumption that preferences are locally non-satiated. Without the assumption of LNS local non-satiation there is no guarantee that a rational individual would maximize utility.

With the necessary tools and assumptions in place the utility maximization problem UMP is developed. The utility maximization problem is the heart of consumer theory.

The utility maximization problem attempts to explain the action axiom by imposing rationality axioms on consumer preferences and then mathematically modeling and analyzing the consequences.

The utility maximization problem serves not only as the mathematical foundation of consumer theory but as a metaphysical explanation of it as well. That is, the utility maximization problem is used by economists to not only explain what or how individuals make choices but why individuals make choices as well.

The utility maximization problem is a constrained optimization problem in which an individual seeks to maximize utility subject to a budget constraint. Economists use the extreme value theorem to guarantee that a solution to the utility maximization problem exists.

That is, since the budget constraint is both bounded and closed, a solution to the utility maximization problem exists. Economists call the solution to the utility maximization problem a Walrasian demand function or correspondence. The utility maximization problem has so far been developed by taking consumer tastes i.

However, an alternative way to develop microeconomic theory is by taking consumer choice as the primitive. This model of microeconomic theory is referred to as revealed preference theory.

The supply and demand model describes how prices vary as a result of a balance between product availability at each price supply and the desires of those with purchasing power at each price demand.

The graph depicts a right-shift in demand from D1 to D2 along with the consequent increase in price and quantity required to reach a new market-clearing equilibrium point on the supply curve S. The theory of supply and demand usually assumes that markets are perfectly competitive. This implies that there are many buyers and sellers in the market and none of them have the capacity to significantly influence prices of goods and services.

In many real-life transactions, the assumption fails because some individual buyers or sellers have the ability to influence prices.

Economic Theories Macro and Micro Economics Macro Economics may be defined as that branch of economic analysis which studies the behaviour of not one particular unit, but of all the units combined together. Macroeconomics is a study of aggregates. Theory of Prices with its constituents of the theories of inflation, deflation and reflation. Here you find AP Economics notes for Macroeconomics, 15th Edition textbook by McConnell and Brue. We are working on adding more AP Economics resources like practice quizzes, essays, free response questions, and vocabulary terms. Lecture Notes in Microeconomic Theory: The Economic Agent - Second Edition - Kindle edition by Ariel Rubinstein. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Lecture Notes in Microeconomic Theory: The Economic Agent - Second Edition.5/5(4).

Quite often, a sophisticated analysis is required to understand the demand-supply equation of a good model.Economics W – Intermediate Microeconomics - Spring Course Outline Contact Details Professor: Mark Dean This is the study of game theory, which may or may not be as exciting as it sounds.

Laptops are fine for taking notes. Econ Principles of Microeconomics Ch. 3: Supply and Demand: A Model of a Competitive Market Fall Herriges (ISU) Chapter 3: Supply and Demand Fall 1 / 37 Outline 1 The Demand Curve Building Market Demand from Individual Demand Movements Along Versus Shifts in Demand.

He is the author of numerous academic papers in the fields of law and economics, criminology, regulatory policy, voting theory and other areas in political economy.

He is co-author with Tyler of Modern Principles of Economics, a widely used introductory textbook. Microeconomic models investigate assumptions about economic agents’ activities and about interactions between these agents. An economic agent . Questions Microeconomics (with answers) 2a Elasticities 01 Price elasticity of demand 1 If the price rises by 3 %, the quantity demanded falls by %.

Calculate the price elasticity of demand. 02 Price elasticity of demand 2. Here you find AP Economics notes for Macroeconomics, 15th Edition textbook by McConnell and Brue. We are working on adding more AP Economics resources like practice quizzes, essays, free response questions, and vocabulary terms.

Microeconomics - Wikipedia