American Market Economy I Flashcards
(40 cards)
Efficiency
Efficiency signifies a level of performance that describes using the least amount of input to achieve the highest amount of output. Efficiency refers to the use of all inputs in producing any given output, including personal time and energy. It is a measurable concept that can be determined using the ratio of useful output to total input (O/I). It minimizes the waste of resources such as physical materials, energy, and time while accomplishing the desired output.
Shift Factors of Demand
Forces other than price that affect how much of a good is demanded. A few important shift factors that can cause the demand curve to move and the prices you pay to change are: Disposable income, tastes, prices of other goods, expectations, etc.
Shift Factors of Supply
Forces other than price that affect how much of a good is supplied. A few important shift factors that can cause the supply curve to move and the prices you pay to change are: Changes in the price of raw materials or inputs, changes in technology, changes in supplier’s expectations, and changes in taxes and subsidies.
Elasticity
Elasticity is a measure of a variable’s sensitivity to a change in another variable. In business and economics, elasticity refers the degree to which individuals, consumers, or producers change their demand or the amount supplied in response to price or income changes. It is predominantly used to assess the change in consumer demand as a result of a change in a good or service’s price.
Elasticity - General Equation
[ % change in y ] / [ % change in x ] = Elasticity
Price Elasticity of Demand
Price elasticity of demand (PED or Ed) is a measure used in economics to show the responsiveness, or elasticity, of the quantity demanded of a good or service to a change in its price when nothing but the price changes. More precisely, elasticity gives the percentage change in quantity demanded in response to a one percent change in price. The terms elastic and inelastic are used to describe this. Price elasticities are almost always negative, although analysts tend to ignore the sign even though this can lead to ambiguity. Only goods which do not conform to the law of demand, such as Veblen and Giffen goods, have a positive PED.
Price Elasticity of Demand - Equation
[ % change in quantity demanded ] / [ % change in price ] = Price Elasticity of Demand
Price Elasticity of Demand - Elastic Demand
Elastic demand is when consumers buy significantly more or less of a product when its price changes. It has a value greater than one indicating demand for the good or service is affected by the price. Compare with ‘Inelastic Demand’.
Price Elasticity of Demand - Inelastic Demand
Inelastic demand means that an increase or decrease in price will not significantly affect demand for the product. It has a value less than one indicating that the demand is insensitive to price. Compare with ‘Elastic Demand’.
Price Elasticity of Demand - Determinants
Determinants of price elasticity of demand include: (1) Availability of substitutes: If substitutes are plentiful, then demand should be elastic. (2) Relative percentage of expenditure: If an item takes up a considerable proportion of a consumer’s income, then demand should be elastic; if it takes up a very small amount, then demand should be expected to be inelastic. (3) Amount of time: Consumers can make more adjustments to prices changes over time and, therefore, demand tends to be more elastic as time passes. (4) Necessities or luxuries: Demand for necessities will tend to be inelastic, while demand for luxuries will tend to be elastic.
Income Elasticity of Demand
Income elasticity of demand refers to the sensitivity of the quantity demanded for a certain good to a change in real income of consumers who buy this good, keeping all other things constant. The formula for calculating income elasticity of demand is the percent change in quantity demanded divided by the percent change in income. With income elasticity of demand, you can tell if a particular good represents a necessity or a luxury.
Income Elasticity of Demand - Equation
[ % change in quantity demanded ] / [ % change in income ] = Income Elasticity of Demand
When the average real income of its customers falls from $50,000 to $40,000, the demand for its cars plummets from 10,000 to 5,000 units sold, all other things unchanged. 50% / 20% = 2.5
Income Elasticity of Demand - Normal Good and Necessity Goods
A normal good is one whose demand increases as people’s incomes or the economy rise. A normal good is defined as having an income elasticity of demand coefficient that is positive. Normal goods whose income elasticity of demand is between zero and one are typically referred to as ‘necessity goods’. Compare with ‘inferior goods’.
Income Elasticity of Demand - Inferior Good
An inferior good is a type of good for which demand declines as the level of income or real GDP in the economy increases. This occurs when a good has more costly substitutes that see an increase in demand as the society’s economy improves. An inferior good is the opposite of a normal good, which experiences an increase in demand along with increases in the income level. Thus, it has an income elasticity of demand coefficient that is negative. Inferior goods can be viewed as anything a consumer would demand less of if they had a higher level of real income.
Cross Price Elasticity of Demand
Cross price elasticity of demand is an economic concept that measures the responsiveness in the quantity demanded of one good when the price for another good changes. Also called cross elasticity of demand, this measurement is calculated by taking the percentage change in the quantity demanded of one good and dividing it by the percentage change in price of the other good.
Cross Price Elasticity of Demand - Equation
[ % change in quantity demanded of good A ] / [ % change in price of good B ] = Cross Price Elasticity of Demand
Cross Price Elasticity of Demand - Substitute Good
The cross elasticity of demand for substitute goods is always positive because the demand for one good increases when the price for the substitute good increases. For example, if the price of coffee increases, the quantity demanded for tea (a substitute beverage) increases as consumers switch to a less expensive yet substitutable alternative. This is reflected in the cross elasticity of demand formula, as both the numerator (percentage change in the demand of tea) and denominator (the price of coffee) show positive increases. Compare with ‘Complimentary Good’.
Cross Price Elasticity of Demand - Complementary Good
A complement refers to a complementary good or service that is used in conjunction with another good or service. Usually, the complementary good has little to no value when consumed alone, but when combined with another good or service, it adds to the overall value of the offering. A product can be considered a complement when it shares a beneficial relationship with another product offering. Compare with ‘Substitution Good’.
Wage Elasticity of Labor Supply
Elasticity of labor supply measures the extent to which labor supply responds to a change in the wage rate in a given time period. For example, WELS for teenagers is generally fairly elastic. That is, a certain percentage change in wages will lead to a larger percentage change in the quantity of hours worked. Whereas, the WELS for adult workers in their thirties and forties is fairly inelastic. When wages move up or down by a certain percentage amount, the quantity of hours that adults in their prime earning years are willing to supply changes but by a lesser percentage amount.
[ % change in quantity of labor supplied ] / [ % change in wage ] = Elasticity of Labor Supply
Wage Elasticity of Labor Supply - Equation
[ % change in quantity of labor supplied ] / [ % change in wage ] = Elasticity of Labor Supply
Wage Elasticity of Labor Supply - Factors
- Nature of skills and qualifications required to work in an industry. - Specific skills and educational requirements make supply inelastic. - Lengthy and costly training periods makes labour supply inelastic. - When the minimum skill factor needed is relatively low, then the pool of available labour will be large, making labour supply elastic. - Vocational nature of work - in vocational jobs such as nursing, people are less sensitive to changes in wages when deciding whether to work and how many hours to work.
Time period: In the short run, the supply curve for labour to a particular occupation tends to be relatively inelastic. - It takes time for people to respond to changes in relative wages and earnings – especially if people need to be re-trained to enter a new occupation. - When labour is geographically and occupationally mobile, then labour supply will tend to be relatively elastic even in the short term.
Elasticity of Savings
In markets for financial capital, the elasticity of savings—the percentage change in the quantity of savings divided by the percentage change in interest rates—determines the shape of the supply curve for financial capital. Sometimes laws are proposed that seek to increase the quantity of savings by offering tax breaks so that the return on savings is higher. Such a policy will increase the quantity if the supply curve for financial capital is elastic, because then a given percentage increase in the return to savings will cause a higher percentage increase in the quantity of savings. However, if the supply curve for financial capital is highly inelastic, then a percentage increase in the return to savings will cause only a small increase in the quantity of savings. The evidence on the supply curve of financial capital is controversial but, at least in the short run, the elasticity of savings with respect to the interest rate appears fairly inelastic.
[ % change in interest rate ] / [ % change in quantity of financial saving ] = Elasticity of Savings
Elasticity of Savings - Equation
[ % change in interest rate ] / [ % change in quantity of financial saving ] = Elasticity of Savings
Substation Effect Vs. Income Effect
The substitution effect is the economic understanding that as prices rise — or income decreases — consumers will replace more expensive items with less costly alternatives, or vice-versa. Although beneficial to some companies like discount retailers, the substitution effect is generally very negative within an economy, as it limits consumer and producer choice. Compare with ‘Income Effect’.