Econ: Supply and Demand and Demand Function

a) An importer of antiquities knows that he can sell bowls and carved figurines to the domestic market. If q1 is this number of figurines sold, their price will be $(60 − 2q1 ). If q2 bowls are sold, $(10 − q2 ) will be the price of bowls. Figurines cost $16 and bowls $4 to the importer and fixed costs are $200. i) How many each of figures and bowls should be sold to maximise profit. ii) Is this indeed a maximum? Justify using second order conditions. iii) What price is

2. Total revenue falls as the price of a good is raised, if the demand for the good is ( )

d. Calculate the price elasticity of demand in each market and discuss these in relation to the prices to be charged in each market.

G. Identify by price range the areas on the demand curve where demand is elastic, inelastic, and unit elastic using the attached “Graphs for Elasticity of Demand, Total Revenue.”

C. Any gain or loss in the firm's revenue from increasing its price would depend on the price elasticity of demand: The more elastic the demand, the higher the revenue potential from a price increase.

1) If a firm in a purely competitive industry is confronted with an equilibrium price of $5, its marginal revenue:

* In Assignment 1, you determined your firm’s market demand equation. Now you need to find the inverse demand equation. Having found that, find the Total Revenue function for your firm (TR is P x Q). From your firm’s Total Revenue function, then find your Marginal Revenue (MR) function.

The new audio greeting message affects the demand for greeting cards. The demand for greeting cards decreases because greeting cards and audio greeting cards are substitutes. The demand curve for greeting cards pads shifts leftward, from D0 to D1 in Figure 4.6. Simultaneously the fall in the cost of producing a greeting card affects the supply. The fall in the cost of producing greeting cards increases the supply and the supply curve shifts rightward, from S0 to S1 in Figure 4.6. At the initial price of a greeting card, $5.00 in Figure 4.6, there is a surplus of 60 greeting cards per week. The surplus forces the price lower, so the equilibrium price of a greeting card

a.) Draw and properly label the demand and supply graphs (this means you must label the axes and any lines you include on the graph).

The market price of a good is determined by both the supply and demand for it. In the world today supply and demand is perhaps one of the most fundamental principles that exists for economics and the backbone of a market economy. Supply is represented by how much the market can offer. The quantity supplied refers to the amount of a certain good that producers are willing to supply for a certain demand price. What determines this interconnection is how much of a good or service is supplied to the market or otherwise known as the supply relationship or supply schedule which is graphically represented by the supply curve. In demand the schedule is depicted graphically as the demand curve which represents the

B) no government regulations exist. C) demand curves are perfectly horizontal. D) suppliers will supply any amount that buyers wish to buy. Answer: A 19) Once an equilibrium is achieved, it can persist indefinitely because A) shocks that shift the demand curve or the supply curve cannot occur. B) shocks to the demand curve are always exactly offset by shocks to the supply curve. C) the government never intervenes in markets at equilibrium. D) in the absence of supply/demand shocks no one applies pressure to change the price. Answer: D 20) If price is initially above the equilibrium level, A) the supply curve will shift rightward. B) the supply curve will shift leftward. C) excess supply exists. D) all firms can sell as much as they want. Answer: C 21) An equilibrium in a market is described by A) a price only. B) a quantity only. C) the excess supply minus the excess demand. D) a price and a quantity. Answer: D 3

1. Economics – the efficient allocation of the scarce means of production toward the satisfaction of human needs and wants.

Elasticity of demand represented as “Ed” is defined as a “measure of the response of a consumer to a change in price on the quantity demanded of a good” (McConnell, 2012). Determinants for elasticity of demand would include the substitutability of a good, proportion of a consumer 's income spent on a good, the nature of the necessity of a good and the time a purchase is under consideration by the consumer. Furthermore, elasticity of demand is calculated with this formula:

Supply and demand is perhaps one of the most fundamental concepts of economics and it is the backbone of a market economy. Demand refers to how much (quantity) of a product or service is desired by buyers. The quantity demanded is the amount of a product people are willing to buy at a certain price; the relationship between price and quantity demanded is known as the demand relationship. Supply represents how much the market can offer. The quantity supplied refers to the amount of a certain good producers are willing to supply when receiving a certain price. The correlation between price and how much of a good or service is supplied to the market is known as the supply relationship. Price, therefore, is a reflection of supply and demand.

Elasticity of demand is shown when the demands for a service or goods vary according to the price. Cross-price elasticity is shown by a change in the demand for an item relative to the change in the price of another. For substitutes, when there is a price increase of an item, there is an increase in the demand for another item. When viewing complements, if there is an increase in the price of an item, the demand for another item decreases. Income elasticity is shown when there is a change in the demand for a good relative to a change in income. This concept is shown in how people will change their spending habits when their income levels change. For