JoVE Logo

登录

Chapter 2

Demand and its Elasticities

需求
需求
Demand is defined as a consumer's willingness and ability to purchase a product at a given price. 'Willingness' represents the readiness to ...
需求定律
需求定律
The law of demand states that when the price of goods increases, consumers tend to buy less, and vice versa, assuming all other factors affecting demand ...
需求曲线的数学表示
需求曲线的数学表示
Demand curves can be represented mathematically. This helps to quantify the law of demand and predict how consumers will react to price changes. ...
市场需求
市场需求
Market demand is the total quantity of a product that all consumers in a specific market are willing to buy at a given price. Market demand shows how ...
相关商品对需求曲线的影响:替代品
相关商品对需求曲线的影响:替代品
Substitutes are products that can serve as replacements for one another. The availability and price of substitutes can significantly influence the demand ...
相关商品对需求曲线的影响:互补商品
相关商品对需求曲线的影响:互补商品
Complementary goods are products used together, like gasoline and gasoline cars or a tennis racket and a tennis ball. When the price of one product ...
收入对需求曲线的影响:普通商品和奢侈品
收入对需求曲线的影响:普通商品和奢侈品
Normal goods are products whose demand increases as consumer income rises and decreases when income falls. Consider smartphones as an example. As ...
收入对需求曲线的影响:劣质商品
收入对需求曲线的影响:劣质商品
An increase in consumers' income usually means they want to buy more of a good. However, that's not always true. Some goods exhibit a peculiar ...
影响需求的其他因素
影响需求的其他因素
Consumer tastes and preferences have a significant influence on demand. For example, if more people prioritize health, they may increase their purchase of ...
需求弹性 (E<sub>d</sub>)
需求弹性 (Ed
The price elasticity of demand measures the responsiveness of the quantity demanded to changes in price for a particular product. It quantifies how ...
通过百分比法的教育
通过百分比法的教育
Price elasticity of demand measures the responsiveness of the quantity demanded to a change in price. It is computed as the ratio of the percentage change ...
需求弹性程度
需求弹性程度
Degrees of elasticity of demand describes how the demand for different goods changes to price changes. It categorizes goods into five degrees based on ...
需求弹性度和需求图
需求弹性度和需求图
Demand curves visually represent the elasticity of goods and services. Perfectly elastic goods have a horizontal demand curve, indicating that any price ...
通过中点法的 Ed
通过中点法的 Ed
Consider two points on a demand curve: point A and point B. At point A, the price is 6 dollars, and the quantity demanded is 120 units. At point B, the ...
弹性和斜率
弹性和斜率
The slope and elasticity of a demand curve might appear similar, but they differ significantly. The slope of a demand curve measures the rate at which the ...
线性需求曲线的弹性
线性需求曲线的弹性
The price elasticity of demand for any good can be expressed as the change in quantity demanded associated with a change in price multiplied by the ratio ...
紧密替代品对需求弹性的影响
紧密替代品对需求弹性的影响
Close substitutes of a product affect consumers' sensitivity to its price changes. If more substitutes are available for a product, consumers can ...
必需品和奢侈品对需求弹性的影响
必需品和奢侈品对需求弹性的影响
The classification of goods into necessities or luxuries plays a crucial role in determining their price elasticity. Necessities encompass essential goods ...
时间范围和其他因素对需求弹性的影响
时间范围和其他因素对需求弹性的影响
The elasticity of goods and services changes over time. Generally, goods exhibit more elastic demand in the long run. For instance, when there is a sudden ...
需求的跨价格弹性
需求的跨价格弹性
Cross-price elasticity of demand measures how the quantity demanded of one good changes in response to a price change in another. It is calculated as the ...
需求收入弹性
需求收入弹性
Income elasticity of demand measures how much people change their buying habits when their income changes. It is quantified as the percentage change in ...
JoVE Logo

政策

使用条款

隐私

科研

教育

关于 JoVE

版权所属 © 2025 MyJoVE 公司版权所有,本公司不涉及任何医疗业务和医疗服务。