Costs, Revenues & Profits: The Basics

In this video I go through the definitions and formulas of the economic key terms total cost, variable cost, fixed cost, average cost,average variable cost, average fixed cost,marginal cost, marginal revenue, total revenue, average revenue, normal profit and supernormal profit.

Aggregate Demand

Introduction to Aggregate Demand 

What Influences Aggregate Demand?

This video aims to explore the factors affecting aggregate demand in 10 minutes.

Why does the aggregate demand curve slope down?