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Its all about education , Kahkashan Khan Blogger

“Education is the most powerful weapon which you can use to change the world” – Nelson Mandela.

Its all about education , Kahkashan Khan Blogger

“If You are planning for a year, sow rice; if you are planning for a decade, plant trees; if you are planning for a lifetime, educate people” – Chinese Proverb.

Its all about education , Kahkashan Khan Blogger

“An investment in knowledge pays the best interest” – Benjamin Franklin.

Its all about education , Kahkashan Khan Blogger

“The beautiful thing about learning is that no one can take it away from you” – B. B. King.

Its all about education , Kahkashan Khan Blogger

“Education is simply the soul of a society as it passes from one generation to another” – G.K. Chesterton.

Cash Controls






Cash is a company's most liquid asset, which means it can easily be used to acquire other assets, buy services, or satisfy obligations. For financial reporting purposes, cash includes currency and coin on hand, money orders and checks made payable to the company, and available balances in checking and savings accounts. Most companies report cash and cash equivalents together. Cash equivalents are highly liquid, short‐term investments that usually mature within three months of their purchase date. Examples of cash equivalents include U.S. treasury bills, money market funds, and commercial paper, which is short‐term corporate debt.

Cash is a liquid, portable, and desirable asset. Therefore, a company must have adequate controls to prevent theft or other misuses of cash. These control activities include segregation of duties, proper authorization, adequate documents and records, physical controls, and independent checks on performance.


Segregation of duties. Cash is generally received at cash registers or through the mail. The employee who receives cash should be different from the employee who records cash receipts, and a third employee should be responsible for making cash deposits at the bank. Having different employees perform these tasks helps minimize the potential for theft.


Proper authorization. Only certain people should be authorized to handle cash or make cash transactions on behalf of the company. In addition, all cash expenses should be authorized by responsible managers.


Adequate documents and records. Company managers and others who are responsible for safeguarding a company's cash assets must have confidence in the accuracy and legitimacy of source documents that involve cash. Important documents such as checks, are prenumbered in sequential order to help managers ascertain the disposition of each document. This helps prevent transactions from being recorded twice or from not being recorded at all. In addition, documents should be forwarded to the accounting department soon after their creation so that recordkeeping can be handled professionally and efficiently. Allowing documents that describe cash transactions to go unrecorded for an unnecessarily long period of time increases the likelihood that fraudulent or inaccurate records will pass undetected through the accounting department.


Physical controls. Cash on hand must be physically secure. This is accomplished in a variety of ways. Cash registers should contain only enough cash to handle customer transactions. When a cashier finishes a shift—or perhaps more frequently—excess cash should be moved from cash registers to a safe or another location that provides additional security. In addition, daily bank deposits are made so that excess cash does not remain on the premises. Blank checks, which can be used for forgery, are stored in locked, fireproof files.


Independent checks on performance. Employees who handle cash or who record cash transactions must be prepared for independent checks on their performance. These checks should be done periodically and may be done without fore-warning. Having a supervisor verify the accuracy of a cashier's drawer on a daily basis is an example of this type of control.


Other cash controls. Most companies bond individuals that handle cash. A company bonds an employee by paying a bonding company for insurance against theft by the employee. If the employee then steals, the bonding company reimburses the company. Companies may also rotate employees from one task to another. Embezzlement or serious mistakes may be uncovered when a new employee takes over a task. Although specific cash controls vary from one company to the next, all companies must implement effective cash controls.

Capital, Loanable Funds, Interest Rate


The demand and supply for different types of capital take place in capital markets. In these capital markets, firms are typically demanders of capital, while households are typically suppliers of capital. Households supply capital goods indirectly, by choosing to save a portion of their incomes and lending these savings to banks. Banks, in turn, lend household savings to firms that use these funds to purchase capital goods.

Loanable funds. The term loanable funds is used to describe funds that are available for borrowing. Loanable funds consist of household savings and/or bank loans. Because investment in new capital goods is frequently made with loanable funds, the demand and supply of capital is often discussed in terms of the demand and supply of loanable funds.

Interest rate. The interest rate is the cost of demanding or borrowing loanable funds. Alternatively, the interest rate is the rate of return from supplying or lending loanable funds. The interest rate is typically measured as an annual percentage rate. For example, a firm that borrows $20,000 in funds for one year, at an annual interest rate of 5%, will have to repay the lender $21,000 at the end of the year; this amount includes the $20,000 borrowed plus $1,000 in interest ($20,000 × .05).

If the firm borrows $20,000 for two years at an annual interest rate of 5%, it will have to repay the lender $22,050 at the end of two years. After one year, the firm will owe the lender $21,000 as explained above; however, because the loan is for two years, the firm does not have to repay the lender until the end of the second year. During the second year, the firm is charged compound interest, which means it is charged interest on both the principal of $20,000 and the accumulated unpaid interest of $1,000. It is as though the firm receives a new loan at the beginning of the second year for $21,000. Thus, at the end of the second year, the firm repays the lender $21,000 + (21,000 × .05) = $22,050.

In general, the amount that has to be repaid on a loan of X dollars for t years at an annual interest rate of r is given by the formula 


For example, if X = $20,000, r = .05, and t = 2, the amount repaid is found to be $20,000 × (1.05) 2 = $22,050.

Determination of the equilibrium interest rate. The equilibrium interest rate is determined in the loanable funds market. All lenders and borrowers of loanable funds are participants in the loanable funds market. The total amount of funds supplied by lenders makes up the supply of loanable funds, while the total amount of funds demanded by borrowers makes up the demand for loanable funds. The loanable funds market is illustrated in Figure . The demand curve for loanable funds is downward sloping, indicating that at lower interest rates borrowers will demand more funds for investment. The supply curve for loanable funds is upward sloping, indicating that at higher interest rates lenders are willing to lend more funds to investors. The equilibrium interest rate is determined by the intersection of the demand and supply curves for loanable funds, as indicated in Figure .


Rate of return on capital and the demand for loanable funds. The demand for loanable funds takes account of the rate of return on capital. The rate of return on capital is the additional revenue that a firm can earn from its employment of new capital. This additional revenue is usually measured as a percentage rate per unit of time, which is why it is called the rate of return on capital. Firms will demand loanable funds as long as the rate of return on capital is greater than or equal to the interest rate paid on funds borrowed. If capital becomes more productive—that is, if the rate of return on capital increases—the demand curve for loanable funds depicted in Figure will shift out and to the right, causing the equilibrium interest rate to rise, ceteris paribus.

Thriftiness and the supply of loanable funds. The supply of loanable funds reflects the thriftiness of households and other lenders. If households become more thrifty—that is, if households decide to save more—the supply of loanable funds increases. The increase in the supply of loanable funds shifts the supply curve for loanable funds depicted in Figure down and to the right, causing the equilibrium interest rate to fall, ceteris paribus.




Labor Demand and Supply in a Perfectly Competitive Market


In addition to making output and pricing decisions, firms must also determine how much of each input to demand. Firms may choose to demand many different kinds of inputs. The two most common are labor and capital.

The demand and supply of labor are determined in the labor market. The participants in the labor market are workers and firms. Workers supply labor to firms in exchange for wages. Firms demand labor from workers in exchange for wages.

The firm's demand for labor. The firm's demand for labor is a derived demand; it is derived from the demand for the firm's output. If demand for the firm's output increases, the firm will demand more labor and will hire more workers. If demand for the firm's output falls, the firm will demand less labor and will reduce its work force.

Marginal revenue product of labor. When the firm knows the level of demand for its output, it determines how much labor to demand by looking at the marginal revenue product of labor. The marginal revenue product of labor (or any input) is the additional revenue the firm earns by employing one more unit of labor. The marginal revenue product of labor is related to the marginal product of labor. In a perfectly competitive market, the firm's marginal revenue product of labor is the value of the marginal product of labor.

For example, consider a perfectly competitive firm that uses labor as an input. The firm faces a market price of $10 for each unit of its output. The total product, marginal product, and marginal revenue product that the firm receives from hiring 1 to 5 workers are reported in Table .


The marginal revenue product of each additional worker is found by multiplying the marginal product of each additional worker by the market price of $10. The marginal revenue product of labor is the additional revenue that the firm earns from hiring an additional worker; it represents the wage that the firm is willing to pay for each additional worker. The wage that the firm actually pays is the market wage rate, which is determined by the market demand and market supply of labor. In a perfectly competitive labor market, the individual firm is a wage‐taker; it takes the market wage rate as given, just as the firm in a perfectly competitive product market takes the price for its output as given. The market wage rate in a perfectly competitive labor market represents the firm's marginal cost of labor, the amount the firm must pay for each additional worker that it hires.

The perfectly competitive firm's profit‐maximizing labor‐demand decision is to hire workers up to the point where the marginal revenue product of the last worker hired is just equal to the market wage rate, which is the marginal cost of this last worker. For example, if the market wage rate is $50 per worker per day, the firm—whose marginal revenue product of labor is given in Table —would choose to hire 3 workers each day.

The firm's labor demand curve. The firm's profit‐maximizing labor‐demand decision is depicted graphically in Figure .


This figure graphs the marginal revenue product of labor data from Table along with the market wage rate of $50. When the marginal revenue product of labor is graphed, it represents the firm's labor demand curve. The demand curve is downward sloping due to the law of diminishing returns; as more workers are hired, the marginal product of labor begins declining, causing the marginal revenue product of labor to fall as well. The intersection of the marginal revenue product curve with the market wage determines the number of workers that the firm hires, in this case 3 workers.

An individual's supply of labor. An individual's supply of labor depends on his or her preferences for two types of “goods”: consumption goods and leisure. Consumption goods include all the goods that can be purchased with the income that an individual earns from working. Leisure is the good that individuals consume when they are not working. By working more (supplying more labor), an individual reduces his or her consumption of leisure but is able to increase his or her purchases of consumption goods.

In choosing between leisure and consumption, the individual faces two constraints. First, the individual is limited to twenty‐four hours per day for work or leisure. Second, the individual's income from work is limited by the market wage rate that the individual receives for his or her labor skills. In a perfectly competitive labor market, workers—like firms—are wage‐takers; they take the market wage rate that they receive as given.

An individual's labor supply curve. An example of an individual's labor supply curve is given in Figure .


As wages increase, so does the opportunity cost of leisure. As leisure becomes more costly, workers tend to substitute more work hours for fewer leisure hours in order to consume the relatively cheaper consumption goods, which is the substitution effect of a higher wage.

An income effect is also associated with a higher wage. A higher wage leads to higher real incomes, provided that prices of consumption goods remain constant. As real incomes rise, individuals will demand more leisure, which is considered a normal good—the higher an individual's income, the easier it is for that individual to take more time off from work and still maintain a high standard of living in terms of consumption goods.

The substitution effect of higher wages tends to dominate the income effect at low wage levels, while the income effect of higher wages tends to dominate the substitution effect at high wage levels. The dominance of the income effect over the substitution effect at high wage levels is what accounts for the backward‐bending shape of the individual's labor supply curve.

Market demand and supply of labor. Many different markets for labor exist, one for every type and skill level of labor. For example, the labor market for entry level accountants is different from the labor market for tennis pros. The demand for labor in a particular market—called the market demand for labor—is the amount of labor that all the firms participating in that market will demand at different market wage levels. The market demand curve for a particular type of labor is the horizontal summation of the marginal revenue product of labor curves of every firm in the market for that type of labor. The market supply of labor is the number of workers of a particular type and skill level who are willing to supply their labor to firms at different wage levels. The market supply curve for a particular type of labor is the horizontal summation of the individuals' labor supply curves. Unlike an individual's supply curve, the market supply curve is not backward bending because there will always be some workers in the market who will be willing to supply more labor and take less leisure time, even at relatively high wage levels.



Equilibrium in a Monopsony Market


In a monopsony market, the monopsonies firm—like any profit‐maximizing firm—determines the equilibrium number of workers to hire by equating its marginal revenue product of labor with its marginal cost of labor. Figure illustrates the monopsony labor market equilibrium, using the supply and cost data from Table .


The marginal revenue product of labor equals the marginal cost of labor when the firm employs 3 workers. The equilibrium market wage rate is determined by the market labor supply curve. In order to employ 3 workers, the firm will have to pay a wage of $20. Hence, the equilibrium wage is $20, and the equilibrium number of workers employed is 3.

Because the monopsonies is the only demander of labor in the market, it has the power to pay wages below the marginal revenue product of labor and to hire fewer workers than a perfectly competitive firm. In Figure , the perfectly competitive firm would face a market wage of $25 because that is the wage rate corresponding to the intersection of the market demand and supply curves. If the perfectly competitive firm had the same marginal revenue product as the monopsonies, the perfectly competitive firm would equate marginal revenue product with the market wage and choose to hire 4 workers at $25. The monopolist's decision to hire only 3 workers at a wage of $20 makes it clear that monopsony, like monopoly in a product market, reduces society's welfare.




Labor Demand and Supply in a Monopsony


A labor market in which there is only one firm demanding labor is called a monopsony. The single firm in the market is referred to as the monopsonist. An example of a monopsony would be the only firm in a “company town,” where the workers all work for that single firm.

Wage‐searching behavior. Because the monopsonist is the sole de‐mander of labor in the market, the monopsonist's demand for labor is the market demand for labor. The supply of labor that the monopsonist faces is the market supply of labor. Unlike a firm operating in a perfectly competitive labor market, the monopsonist does not simply hire all the workers that it wants at the equilibrium market wage. The monopsonist faces the upward‐sloping market supply curve; it is a wage‐searcher rather than a wage‐taker. If the monopsonist wants to increase the number of workers that it hires, it must increase the wage that it pays to all of its workers, including those whom it currently employs. The monopsonist's marginal cost of hiring an additional worker, therefore, will not be equal to the wage paid to that worker because the monopsonist will have to increase the wage that it pays to all of its workers.

A numerical example of a monopsony market is provided in Table . The first two columns provide data on the market supply of labor that the monopsonist faces. The third column reports the total cost to the monopsonist of hiring each worker, which is just the wage times the number of workers. The fourth column reports the marginal cost of labor, which is the change in monopsonist's total cost of labor as it hires additional workers.


Suppose the monopsonist wants to increase the number of workers that it hires from 2 to 3. In order to attract the third worker, the monopsonist must offer an hourly wage of $20 instead of $15. However, because the monopsonist cannot discriminate among its workers (and risk alienating them), it must offer the higher $20 wage to its two current employees. Hence, the monopsonist's costs from hiring the third worker are $60 (3 × $20), and the marginal cost from hiring the third worker is $30 ($60 − $30). The marginal cost of $30 exceeds the new market wage of $20 because the monopsonist must also pay its two current employees an hourly wage that is $5 higher than before.



Monopolists: Profit Maximization


An illustration of the monopolistically competitive firm's profit‐maximizing decision is provided in Figure .



The firm maximizes its profits by equating marginal cost with marginal revenue. The intersection of the marginal cost and marginal revenue curves determines the firm's equilibrium level of output, labeled Q in this figure. The firm finds the price that it can charge for this level of output by looking at the market demand curve; if it provides Q units of output, it can charge a price of $ P per unit of output. The firm is shown earning positive economic profits equal to the area of the rectangular box, abcd. Negative economic profits (losses) are also possible.

The monopolistically competitive firm's behavior appears to be no different from the behavior of a monopolist. In fact, in the short‐run, there is no difference between the behavior of a monopolistically competitive firm and a monopolist. However, in the long‐run, an important difference does emerge.




Demand in a Monopolistic Market

 

Because the monopolistically competitive firm's product is differentiated from other products, the firm will face its own downward‐sloping “market” demand curve. This demand curve will be considerably more elastic than the demand curve that a monopolist faces because the monopolistically competitive firm has less control over the price that it can charge for its output. The firm's control over its price will depend on the degree to which its product is differentiated from competing firms' products. If the firm's product is not differentiated from other products, the firm will face a relatively elastic demand curve and will have less control over the price it can charge. If the firm's product is differentiated compared to a competing firm's products, the firm will face a relatively inelastic demand curve and will have more control over the price that it can charge.

Price‐searching behavior. The monopolistically competitive firm will be a price‐searcher rather than a price‐taker because it faces a downward‐sloping demand curve for its product. The firm searches for the price that it will charge in the same way that a monopolist does, by comparing marginal revenue with marginal cost at each possible price along the market demand curve.



Conditions for Monopoly

 

Perfect competition and pure monopoly represent the two extreme possibilities for a market's structure. The structure of almost all markets, however, falls somewhere between these two extremes. This section considers two market structures, monopolistic competition and oligopoly, which lie between the extreme cases of perfect competition and monopoly. Monopolistic competition, as its name suggests, is a combination of monopoly and competition. However, monopolistic competition is more closely related to perfect competition than to monopoly. Oligopoly is also a combination of monopoly and competition, but it is more closely related to monopoly than to perfect competition.

Three conditions characterize a monopolistically competitive market. First, the market has many firms, none of which is large. Second, there is free entry and exit into the market; there are no barriers to entry or exit. Third, each firm in the market produces a differentiated product. This last condition is what distinguishes monopolistic competition from perfect competition. Examples of monopolistically competitive firms include restaurants, retail clothing stores, and gasoline service stations.

Differentiated products and monopolistic behavior. In many markets, competing firms sell products that can be differentiated from one another. A firm's product can be differentiated in a number of different ways: by its quality, its convenience, its size, its color, its look, its taste—even by its brand name! As a firm's product becomes more and more differentiated, the firm faces less and less competition and will be able to act more like a monopolist in its output and pricing decisions. Thus, in a monopolistically competitive industry, firms seek to differentiate their products as much as possible. Much of this differentiation is accomplished through advertising.



Cartel Theory of Oligopoly

 

cartel is defined as a group of firms that gets together to make output and price decisions. The conditions that give rise to an oligopolistic market are also conducive to the formation of a cartel; in particular, cartels tend to arise in markets where there are few firms and each firm has a significant share of the market. In the U.S., cartels are illegal; however, internationally, there are no restrictions on cartel formation. The organization of petroleum‐exporting countries (OPEC) is perhaps the best‐known example of an international cartel; OPEC members meet regularly to decide how much oil each member of the cartel will be allowed to produce.

Oligopolistic firms join a cartel to increase their market power, and members work together to determine jointly the level of output that each member will produce and/or the price that each member will charge. By working together, the cartel members are able to behave like a monopolist. For example, if each firm in an oligopoly sells an undifferentiated product like oil, the demand curve that each firm faces will be horizontal at the market price. If, however, the oil‐producing firms form a cartel like OPEC to determine their output and price, they will jointly face a downward‐sloping market demand curve, just like a monopolist. In fact, the cartel's profit‐maximizing decision is the same as that of a monopolist, as Figure reveals. The cartel members choose their combined output at the level where their combined marginal revenue equals their combined marginal cost. The cartel price is determined by market demand curve at the level of output chosen by the cartel. The cartel's profits are equal to the area of the rectangular box labeled abcd in Figure . Note that a cartel, like a monopolist, will choose to produce less output and charge a higher price than would be found in a perfectly competitive market.


Once established, cartels are difficult to maintain. The problem is that cartel members will be tempted to cheat on their agreement to limit production. By producing more output than it has agreed to produce, a cartel member can increase its share of the cartel's profits. Hence, there is a built‐in incentive for each cartel member to cheat. Of course, if all members cheated, the cartel would cease to earn monopoly profits, and there would no longer be any incentive for firms to remain in the cartel. The cheating problem has plagued the OPEC cartel as well as other cartels and perhaps explains why so few cartels exist.