Supply is the amount of a product that a producer is willing and able to offer for sale at a particular price and at a particular time. It is in this lucid manner that this book will teach you supply. It clearly explains the supply schedule and the supply curve. It states the law of supply. It appraises the factors that affect the supply of goods and services. It distinguishes ‘a change in the quantity supplied’ from ‘a change in supply. It analyzes the factors that give rise to abnormal supply curves. It examines the types of supply like the complimentary supply, competitive supply and composite supply. And it explores the elasticity of supply by throwing light on the types of elasticity of supply and the factors that affect the elasticity of supply.in a modern economy.