Useful Links
Economics
Foundational Economics
Mathematical Economics
1. Introduction to Mathematical Economics
2. Static Equilibrium Analysis
3. Linear Models and Matrix Algebra
4. Comparative Static Analysis
5. Optimization Problems
6. Dynamic Analysis
7. Advanced Topics in Mathematical Economics
Optimization Problems
The Concept of Optimization
Objective Functions
Constraints
Types of Optimization Problems
Unconstrained Optimization
Constrained Optimization
Linear vs. Nonlinear Programming
Unconstrained Optimization
Functions of One Variable
First-Order Conditions for Extrema
Critical Points
Second-Order Conditions
The Second-Derivative Test
Functions of Several Variables
First-Order Conditions
Gradient Vector
Second-Order Conditions
The Hessian Matrix
Nature of Critical Points
Local Maxima
Local Minima
Saddle Points
Concavity and Convexity
Definitions and Properties
Tests for Concavity and Convexity
Implications for Optimization
Constrained Optimization with Equality Constraints
The Substitution Method
Reduction to Unconstrained Problem
Advantages and Limitations
The Lagrange-Multiplier Method
The Lagrangian Function
First-Order Conditions
Interpretation of the Lagrange Multiplier
Multiple Constraints
Second-Order Conditions
The Bordered Hessian
Sufficient Conditions for Extrema
Classification of Critical Points
Constrained Optimization with Inequality Constraints
The Kuhn-Tucker Conditions
Necessary Conditions
Sufficient Conditions
Complementary Slackness
Constraint Qualification
Regularity Conditions
Linear Independence Constraint Qualification
Economic Interpretation
Shadow Prices
Binding and Non-binding Constraints
Economic Applications of Optimization
Consumer Theory
Utility Maximization
Budget Constraints
Derivation of Demand Functions
Indirect Utility Function
Expenditure Function
Producer Theory
Profit Maximization
Cost Minimization
Production Functions
Derivation of Supply Functions
Input Demand Functions
Envelope Theorems
Statement and Proof
Economic Interpretation
Applications in Consumer and Producer Theory
Roy's Identity
Shephard's Lemma
Previous
4. Comparative Static Analysis
Go to top
Next
6. Dynamic Analysis