Economics 3220 Chapter Notes - Chapter 3: Aggregate Demand, Aggregate Supply, Demand Curve

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9 Feb 2013

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Competitive market model uses market or aggregate demand curve and market or aggregate supply curve. The demand curve is a relationship between quantity demanded and market price. The price reflects what an individual is willing to pay (wtp) for consuming each unit of the good. Usually, individuals are willing to pay high price for the first few units but lower price for additional units- marginal wtp falls. Because with limited budget, opportunity cost of more units increases. So, individuals are not willing to pay as much for additional units as for the first unit. This falling mwtp give the downward sloping demand curve. So, the demand curve is also known as the marginal willingness to pay (mwtp) curve. It is also known as the marginal benefit (mb) curve as each point on the demand curve reflects the monetary value of benefits of consumption from additional units. Example: demand curve q=10-2p. inverse is p=5-0. 5q, find y int by setting q=0.

Related Questions

Considering the demand side of a market for a good, it is reasonable to expect that:
i. demand curves for a given good are identical between consumers
ii. demand curves for a given good differ between consumers
iii. an individual has identical demand curves for different goods
iv. an individual has different demand curves for different goods

iii

i and iii

ii and iv

Suppose the market demand curve for a good is represented by the linear equation Q = 60 - 0.75P. If the market price were to increase from P = $20 to P = $40, then holding all other factors constant:

the quantity demanded would decrease by 10 units and total expenditures on the good would decrease by $400

the quantity demanded would decrease by 15 units and total expenditures on the good would increase by $300

the quantity demanded would decrease by 30 units and total expenditures on the good would increase by $1200

the quantity demanded would increase by 20 units and total expenditures on the good would decrease by $800

the quantity demanded would increase by 10 units and total expenditures on the good would increase by $100

the quantity demanded would increase by 25 units and total expenditures on the good would increase by $1000

A perfectly competitive firms supply curve for a good identifies the:
i. minimum quantity supplied at each price, holding all other factors constant
ii. firms minimum willingness to accept for each incremental unit of the good (e.g., the first unit, second unit, etc.), holding all other factors constant
iii. maximum quantity supplied at each price, holding all other factors constant
iv. firms maximum willingness to accept for each incremental unit of the good (e.g., the first unit, second unit, etc.), holding all other factors constant

Considering the supply side of a market for a good, if a firms supply curve were vertical, then:

the law of supply holds, and quantity supplied is completely insensitive to changes in price

the law of supply holds, and quantity supplied is highly sensitive to changes in price

the law of supply fails to hold, and quantity supplied is completely insensitive to changes in price

the law of supply fails to hold, and quantity supplied is highly sensitive to changes in price

none of the above

The determinants of supply are:
i. factors other than price that will affect the quantity of a good or service a firm is willing and able to purchase
ii. factors that affect a producers maximum willingness-to-accept to produce various quantities of a good
iii. factors that affect a producers minimum willingness-to-accept to produce various quantities of a good

iii

i and ii

i and iii

The market supply curve for a good is derived by:
i. horizontally summing the supply curves of the individual firms in the market
ii. vertically summing the supply curves of the individual firms in the market
iii. summing the quantity supplied by each firm at a given price and then repeating this over the range of prices

iii

i and ii

i and iii

If the level of technology used in the production of a good improves, and assuming the quality of the good does not change, then:
i. more output may be obtained with a given amount of inputs compared to before the technological improvement
ii. a given amount of output may be obtained with fewer inputs compared to before the technological improvement
iii. the firm will increase its use of other inputs, such as the number of workers it employs
iv. market demand for the good will increase

Considering the market for gasoline, which of the following would result in an increase in market supply?
i. a decrease in the price of gasoline
ii. an improvement in oil extraction and refining technologies
iii. an increase in the wage rates paid to gasoline refinery workers
iv. a decrease in the price of crude oil, a key input used to produce gasoline
v. the imposition of a federal gasoline tax aimed a decreasing the emission of greenhouse gases

Suppose a market has two identical sellers. If each sellers supply function is given by P = 20 + Q, then the market supply function is:

From the market framework discussed in class and the readings, it may be concluded that in order for a good to be exchanged between a seller and a buyer, it must be that:

buyer maximum willingness-to-pay is greater than seller minimum willingness-to-accept

buyer maximum willingness-to-pay is greater than or equal to seller minimum willingness-to-accept

buyer minimum willingness-to-pay is greater than or equal to seller maximum willingness-to-accept

buyer minimum willingness-to-pay is greater than seller maximum willingness-to-accept

If the market demand function is given by P = 80 - 0.3Q and the market supply is given by P = 20 + 0.1Q, then the equilibrium price and quantity are:

Of concern are the affects of sustained summer droughts on the domestic supply of wheat. Noting that wheat is a primary ingredient in the production of bread and that potatoes are a substitute for bread, if the supply of wheat declines then it is reasonable to expect:

the price of wheat to fall, the supply of bread to increase, and the demand for potatoes to increase

the price of wheat to fall, the supply of bread to increase, and the demand for potatoes to decrease

the price of wheat to rise, the supply of bread to decrease, and the demand for potatoes to decrease

the price of wheat to rise, the supply of bread to decrease, and the demand for potatoes to increase

the price of wheat to rise, the supply of bread to increase, and the demand for potatoes to increase

the price of wheat to rise, the supply of bread to increase, and the demand for potatoes to decrease

Suppose a perfectly competitive market is initially in equilibrium. If market demand and supply decrease simultaneously, then equilibrium:

price will rise, but the equilibrium quantity may either rise, fall, or remain unchanged

quantity will rise, but the equilibrium price may either rise, fall, or remain unchanged

price will fall, but the equilibrium quantity may either rise, fall, or remain unchanged

quantity will fall, but the equilibrium price may either rise, fall, or remain unchanged

Considering the demand side of a market for a good, the consumer surplus derived by an individual:
i. is the difference between the maximum amount the consumer is willing to pay on each unit and the minimum prices that producers are willing to accept
ii. is the difference between the minimum amount the consumer is willing to pay on each unit and the price he/she
actually pays
iii. is the difference between the maximum amount the consumer is willing to pay on each unit and the price he/she actually pays
iv. will decrease if price increases

Suppose the market demand for a good is described by the equation P = 120 - 2Q. If a change in market supply results in price decreasing from P0 = $80 to P1 = $70, then the resulting change in consumer surplus is:

Market Analysis Market Participants Market participants act as if they are rational, self-interested, and forward-looking. For example, financial managers try to maximize the present value of profits for their particular companies, rather than ignore future values. Companies pursue many goals, but it is a financial mistake for managers to pursue any goal that conflicts with the primary goal of maximizing their firm's profits. Decentralized decision making by individual market participants is more economically efficient that centralized decision making by government policymakers. For example, it is more economically efficient to have financial managers obtain financing for their particular companies than to have government obtain it. A high degree of competition among market participants is the most economically efficient disciplining mechanism. For example, highly competitive financial markets discipline financial managers to pay fair market interest rates on the debt securities issued by their particular companies. The market system of prices is the most economically efficient allocative mechanism. For example, it is more economically efficient to distribute a firm's corporate stock to those buyers who are willing and able to pay the market price of the stock than to have the government distribute the stock. It is economically efficient for market participants to buy low and sell high globally. For example, it is economically efficient for U.S. firms to sell their financial securities to the highest bidders, no matter where they live in the world economy. Market imperfections can create considerable risk to market participants. For example, because of market imperfections, firms operating in the international financial markets encounter foreign exchange rate risk, political risk, interest rate risk, and default risk. Consumer Sovereignty The principle of consumer sovereignty tells us that by making their dollar votes, consumers indirectly determine the quantity and quality of products that firms will produce. For example, it is not economically efficient for financial managers to obtain more financing for their particular firms than is needed for their firms to produce the profit-maximizing level of output demanded by consumers. Market Economy A highly competitive market economy is largely self-regulating, in the absence of substantial market imperfections, in that economic conditions cannot be substantially improved by government regulation or other types of government intervention beyond laissez-faire policies. For example, if a firm's corporate stock is overvalued by a market economy, market forces will tend to drive down the value of the stock to a market price at which it is neither overvalued nor undervalued. As if by an invisible hand, highly competitive market forces will tend to create a harmony of interests among individual market participants, in the absence of substantial market imperfections. Consequently, the interests of shareholders and other stakeholders are compatible. For example, in trying to maximize profits, firms produce employment, income, consumer products, and wealth for households, as well as tax revenue for government, which helps maximize consumer utility and maximize social welfare. In a market economy, resources, products, and assets flow to their highest valued uses among alternative uses. For example, the shares of firms' corporate stocks will be acquired by those market participants who most highly value them, as indicated by the fact that they are willing to pay the most to acquire them. The efficient economic role of government is limited to Laissez-Faire ("hands off") policies, which create very little intervention in a market economy. For example, government regulations of banking and securities industries to maintain healthy, reasonably profitable, consumer-oriented financial markets would not be needed in a highly competitive market economy in the absence of substantial market imperfections. In a market economy, it is economically efficient for each market participant to specialize according to comparative advantage in producing what they can produce relatively better than other market participants, rather than produce all the outputs they can produce absolutely better than others. For example, it is economically efficient for people who are relatively better at being financial managers than others, to specialize in financial management even if they are absolutely better than others in doing many other types of work. If all labor were allocated to its comparative advantage, then no possible reallocation of labor would exist that could increase the rate of return to labor (i.e., the wage). There is no such thing as a free lunch, because all resources, products, and assets in a market economy are scarce. For example, current federal government budget deficits are not free to current market participants in that the deficits must be financed by future tax increases and/or future decreases in government spending and/or future inflation. For additional information on the Market Economy click here. Marks, R. E. (2006, December). There Is No Such Thing As Free Lunch. Australian Journal of Management. 31(2). 1-7. Financial Decisions An efficient financial decision, practice, transaction, or condition is one that is optimal -- meaning best; it cannot be improved, from society's perspective. If there is some profitable way to improve some business practice that would benefit society, that practice is somewhat inefficient. Any change in a financial decision, practice, transaction, or condition that improves society is an efficiency improvement. For example, it is an efficiency improvement for a business to cut production costs by reducing waste (e.g., by reducing spending on unprofitable activity. A financial decision, practice, transaction, or condition is fair-- meaning just or equitable, if the financial benefits are distributed to those involved in proportion to how much they each voluntarily contributed to produce those benefits. For example, a financial practice that discriminates against some people on the basis of race, age, gender, nationality, or religion is unfair. For example, an unethical business practice is unfair. For additional information relating to Market Analysis and fair financial decisions, click on the following: Teaching Ethical Economic Practices to Business Managers. Johnston, C. (2009, October). The Proceedings of the Annual Conference of The International Academy of Business and Economics. Fairness is a necessary condition, but not a sufficient condition, for efficiency. All efficient financial practices are fair, but some fair practices may still fail to be efficient. For example, embezzling company funds is an unfair and inefficient, criminal financial activity. As another example, an ethical business practice that could be improved is fair but not efficient. Opportunity Cost Principle Opportunity cost principle: The efficient measure of the cost of any allocation of resources, products, money income, wealth, or time is its opportunity cost -- the value of the next best use. The opportunity cost of how one uses his or her resources is the value of the highest valued alternative use. The opportunity cost of one investment is the expected return on the next best investment available to the firm. For example, the opportunity cost of a firm using some of its profits to pay dividends to its stockholders would be the present value of future income those profits could have earned if invested in the firm's highest valued investment project.

Discussion Questions These questions stem from the Class Discussion Questions you will be anwering in the Discussion Board. Think about the questions and how they relate to the financial management principles above.

2. Applications: State the financial management principle that appears to be violated in each of the following cases and explain how it is violated:

(a) A corporation is maximizing sales growth and the price of its corporate stock is falling.

(b) A highly paid financial manager in the auto industry quit his job to set up his own small auto repair shop, which is expected to incur a loss for the first three years then earn normal profits.


(Please Summerize the work down below, thank you)

Political	Economic
Growing political influences on healthcare advances	Cost of living increases
Global government influence on healthcare cost	Cost of insurance prices
Government control of Medicaid, Medicare funding	Rise of forecasted interest rates
Social/Cultural	Technical or Technology
Increase average age of population	Demand on new medical treatments
Patient expectations increase	Customize treatments
Demographics are in constant change	More advance service facilities
Environmental	Legal
Growing need for green business	Constant change of government drug Regulations
Environmental agenda and community awareness	Consumer laws
	Health and safety regulations



Porters 5 forces of business model

Competitive Rivalry
Growth opportunity for healthcare companies are expected to growing the next few years
Increase in new revolutionary drugs both in and outside of the US

Threat if New Entrants
Strict government regulations
Difficult to keep up due to constant change
Huge startup cost

Substitute Products
Threat of other substituting product and service at lower cost



Bargaining Power of Customers
Generic drugs offered at large discount to consumer
Larger less customized healthcare facility with lower housing costs
Several facilities offering similar services.

Bargaining power of supplier
Medical suppliers have a large pricing power
Bargaining power of physicians and nurses is huge because of large hospital benefits

Swot Analysis

Strengths

Highly trained and capable employees

Market experience

Strong leadership

High level of organizational efficiency

Excellent facilities

Strong commitment to bettering the community

Weaknesses

Increased cost of healthcare could lower our clientele

Limited staff resources

Limited cash flow to hire and train new employees

Lack of resources

Opportunities

Fast growing technology opens new doors for using state of the art equipment to better serve the patients.

Nursing and residential care is one of the fastest growing industries

Aging population

Threats

Uncertainty in political and economic climate causes hesitation for receiving new patients.

Funding constraints

Highly competitive market

Product or Service Analysis

Our services will be used by patients who cannot afford experimental treatments and patients who have been abandoned by the system because hospitals can no longer provide medical assistance. At our facility, we will be able to work with the families and provide them with different payments options, such as low monthly payment plans. Our main goal is to be able to treat the patient at a very affordable cost; however, if any patient does not possess the means to pay for treatment, he or she would not be turned away; our facility will tap into government and private funding to cover treatment cost.

The beauty of this service is that there isnât a charge of any kind to take part in our program because it is completely funded by government grants. Individuals that would take part would more than likely not have the means to pay a monthly deductible. Due to the nature of the business listed as a non-profit agency, there is no way to make a profit of any kind, as it would jeopardize the business in its entirety.

Some of the market factors that create a demand for our services include the need of medical care after having maximized all resources, the number of low income families, and the number of patients facing health issues needed extended medical care.

Opportunities that may derive from this business is the opportunity to expand and open multiple facilities, while extending a helping hand to many more in need. The risk, however, is the unstable funds deriving from grants. This can pose a huge treat to the business, as grants often times come and go and cannot be counted on as a constant income.

After studying the healthcare system and current policies in place, data shows many individuals facing severe health issues usually go untreated and uncared for due to the outrageous cost of medical care. It is devastating to see how often people, especially the elderly, are sent home and forgotten for the mere reason that hospitals and doctors are not willing to care for patients without financial means. In fact, in 2009 Harvard news reported 45,000 annual deaths due to lack of health coverage in the U.S. alone, which is significantly higher than the 18,000 reported by USA Today in 2002.

Financial Analysis

Clermont will be a nonprofit organization, dedicated to help the most needed. To open the facility fully operational we must take in consideration some fixed expenses like the land acquisition, permits, interest, brokers, administration fees, professionals (facility setup), staff, reports (environmental, occupational, fire, FDA), electricity, water, phone, water & sewer , connections, taxes, insurance, management, security, advertising, accountants, food, lawn mowers, bank fees, etc.

The facility will need have a total value of approximately three million dollars, but if we break the price of the land acquisition in to a thirty (30) year mortgage we can star up the business with an investment of approximately $ 233,944.61 USD to cover the first month of operation including all the startup permits and connections. After the first month the fixed expenses will be $184,444.00 USD with the exception of the months were taxes are due; taxes are around $ 43,000.00 USD paid quarterly will increase the tax month (depending on the facility fiscal year) for $ 10,750.00 USD approximately. We will fund all the costs with private and public funding, fundraiser, events, raffles, and most important with the help of the community.

As we mentioned before, Clermont is a nonprofit organization and we will do everything in our power to give the relief to the families in need. No one will be rejected because they do not have the money or the insurance cannot help. No money will be required from patient and every single dollar received will be spent in the patients, and in improving our facility and our service every day.

We believe our financial even breaking point will be a year after we begin operations, and be profitable soon after. There are many patients in need, and with the government and public grants each person will receive the treatment they need, and we will become the hope of many.

Economics 3220 Chapter Notes - Chapter 3: Aggregate Demand, Aggregate Supply, Demand Curve

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