Typically a time period is also given when describing quantity demanded, since obviously the quantity demanded of an item would differ based on whether we were talking about per day, per week, and so on. The Demand Curve and the Law of Demand The demand curve is a graph that describes the relationship between price and quantity demanded. Here we learn the formula to calculate quantity demanded in terms of price elasticity along with practical examples and downloadable excel sheet. Quantity demanded is the amount of a good or service that a consumer is willing and able to purchase at a given price within a certain period of time.Demand implies that consumers must not merely wish to purchase the product, but also possess sufficient funds to be in a position to purchase it, and that the amount demanded is calculated over a certain time period (e.g., daily, … Quantity Demanded Definition. The most important determinants of demand are: Price of the good. Price of related goods. Change in quantity demanded Caused when consumers buy more in response to a decrease in price or less in response to an increase in price, the quantity demanded is said to move "move along the demand curve" In economics, demand is the quantity of a good that consumers are willing and able to purchase at various prices during a given period of time. This has been a guide to Quantity Demanded and its definition. … The demand curve Demand: is the total amount of goods and services that consumers are willing and able to purchase at a given price in a given time period.. Demand The law of demand. Quantity demanded tells about the customer’s demand for the specific amount of goods at a particular price at the given point in time. … Consumer's preferences. Disposable income. The specific quantity desired for a good at a given price is known as the quantity demanded. The Law of Demand: states that "as the price of a product falls, the quantity demanded of the product will usually increase, ceteris paribus".. Quantity Supplied: In economics, quantity supplied describes the amount of goods or services that are supplied at a given market price . Quantity demanded is used in economics to describe the total amount of a good or service that consumers demand over a … IB Economics notes on 1.2 Demand. Demand elasticity refers to how sensitive the demand for a good is to changes in other economic variables, such as the prices and consumer income. Depends Quantity demanded is used in economics to describe the total amount of a good or service that consumers demand over a … The relationship between price and quantity demanded is also called the demand curve.Demand for a specific item is a function of an item's perceived necessity, price, perceived quality, convenience; available alternatives; purchasers' … Quantity Demanded: Definition: The term demand refers to the willingness of the consumer to purchase the good with respect to his/her affordability to pay for its price. Quantity Demanded Definition. Demand Definition: In economics, demand is the quantity of a good that consumers are willing and able to purchase.