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Topics covered by the reviewer; the Theory of Firm: Production Cost, Labor Market: Wages in Perfect Competition, Interest, Rent, and Profit, and Market Structures
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Lesson 6 the Theory of Firm: Production Cost Production, Inputs and Outputs Production is the process of converting inputs and outputs Inputs are commodities and services that are used to produce goods and services Outputs are the various useful goods and services that result from the production process and either consumed or employed in further production Two Main Types of Production Inputs
1. Fixed Inputs Is any resource the quantity of which cannot readily be changed when market conditions indicate that a change in output is desirable. These cannot easily be change within a short period of time when there is a need to immediately increase (decrease) the production level, and thus, they must remain as fixed amounts while managers decide to vary output. 2. Variable Input Any economic resource the quantity of which can be easily changed in reaction to changes in output level Final Goods Goods and services that are ultimately consumed Intermediate Goods Goods that are used to produce other goods. Technology: Labor intensive or Capital intensive An economy or firm uses its existing technology to combine inputs to produce outputs Technology Is a body of knowledge applied to how goods are produced It is the production process employed by firms in creating goods and services Labor Intensive Technology Utilizes more labor resources than capital resources Usually employed by economies where labor resources are abundant and cheap. Capital Intensive Technology It utilizes more capital resources than labor resources in the production process. Employed by industrialized economies since capital resources in this economies are cheaper than labor. Short run versus Long run Short run concept is the period of time so short that there is at least one fixed input, therefore changes in the output level must be accomplished exclusively by changes in the use of variable inputs. Long run is a period of time so long that all inputs are considered
variable. It is also known as planning horizon The Production Function Is the functional relationship between quantities of inputs used in production and outputs to be produced. It specifies the maximum output that can be produced with a given quantity of inputs given the existing technology of a firm. Production Possibility Curve or Production Possibility Frontier It is a curve which shows the combination of two or more goods and services that can be produced by making efficient use of all the available factor resources or the factors of production. When a firm is not producing quantities indicated by the PPF, resources are being managed inefficiently three important production concept
1. Total Product It refers to the total output produced after utilizing the fixed and variable inputs in the production process. 2. Marginal Product It refers to the total output produced after utilizing the fixed and variable inputs in the production process. As a firm increases its number of employees by one, which is marginal increase there is a change in the total product The marginal product of labor is the change in total product when one more unit of labor is employed, with the amounts of other inputs remaining the same. Average and Marginal Product Equation 𝑀𝑃 =∆ 𝑇𝑃 ÷∆ 𝐼 L 𝑀𝑃 = 𝑇𝑃 2 ⎼ TP1 ➗ I2 ⎼ I 𝐴𝑃 = 𝑇𝑃 ÷ 𝐼 3. Average Product This is the final concept of the Production Theory which equals total product divided by total units of inputs used. Hypothetical Production Schedule of T- Shirt
There is increasing marginal returns when a small number of workers are employed and arise from increased specialization and division of labor in the production process. (Bade and Parken 2004) Decreasing Marginal returns Decreasing marginal returns occur when the marginal product of an additional workers is less than the marginal product of the previous worker hired to do some task. Decreasing marginal returns arise from the fact that more and more workers use the same equipment and workplace. Thus as more and more workers are employed, there is less and less that is production for the additional worker to do. Diminishing return and Marginal Product It refers to the response of output to an increase of a single input when all other inputs are held constant. Returns to Scale It refers to the effects of scale increases of inputs on the quantity produced. Example: Rice production; and a proportional increase on the following inputs: farmland, labor irrigation, fertilizers and pesticides Constant Returns to Scale Indicates a case where a change in all inputs leads to a proportional change in output. For instance; if farmland, number of farmers, and other farm inputs are doubled, then we can assume that under this condition rice production would also doubled. Increasing Returns to Scale It happen when an increase in all inputs lead to a more than proportional increase in the level of output A farmer will generally find that increasing the inputs of labor, irrigation, fertilizers and pesticides by 10% will increase his total rice production by more than 10% Decreasing Returns to Scale It occur when a balance increase in all inputs leads to a less than proportional increase in total output. In many processes, scaling up may eventually reach a point beyond which inefficiencies set in. This may arise because the cost of management or control becomes large. The Theory of Cost Profit The equation that every business person knows better than anything else in the world is: Sales – Costs = Profit or Total revenue – Total Costs = Profit Costs
It refers to the all expenses acquired during the economic activity or the production of goods or services. It includes expenditures incurred for the utilization of the various factors of production in the creation of goods. Total revenue = Price x Quantity sold Total revenue is equal to the price of the good multiplied by the total product or quantity sold. Explicit and Implicit Costs The amount that a firm pays to attract resources from their best alternative use Explicit Costs Are payments to non owners of a firm for their resources (Tucker
Suppose a firm has a fixed costs of 5 million, variable costs of 6 million and a total revenue of 7 million. 1. What does it do in the short run? 2. If you are the owner of the business, what would you do? Answer (To operate or Shut down) If you operate, your total cost is 11 million Total revenue – cost = Profit So, 7M – 11M, your loss is 4M. Definitely, this is not good for you as the owner of the business. If you shut down, you produce nothing. Your fixed and total costs are the same (5million). As total revenue is zero, you lose 5M by shutting down. What do you do now? Shut down and lose 5M or operate and lose 4M? In summary (the decision to operate or shutdown) In the short run a firm has 2 options; operate or shutdown. It operates when total revenue exceeds variable costs. But when the variable costs are greater than total revenue, it shuts down. Profit Maximization The difference that arises when a firm’s total revenue is greater than its total cost. Is the process by which a firm determines the price and output level that returns the greatest profit. Approaches to price – output vs. maximum amount of profit Total Revenue – Total Cost (TR – TC) Marginal revenue = Marginal Cost TR-TC This method relies on the fact that profit equals revenue minus cost, that is: MR-MC The marginal revenue minus the marginal cost (MR – MC) method is based on the fact that total profit in a perfectly competitive market reaches its maximum profit where marginal revenue equals marginal cost, that is; MR = MC
Lesson 7 Labor Market: Wages in Perfect Competition Markets for the Factors of Production Economics largely focuses on the markets for goods and services, or what we commonly refer to as OUTPUTs OF PRODUCTION There are also markets for the factors of production or INPUTS TO PRODUCTION. These are what we call FACTOR MARKETS which keep the circular flow of economic activity moving. Product Market Is the market for a final good or service which is usually considered to be a consumer product For example, in the automobile industry the markets for automobiles or vehicles is called the product market Factor Market Is the market for the factors used in the production of a consumer product, and not the good produced itself. For example, in the automotive industry, the market for autoworkers is the factor market, that is the labor, as factor of production, creates the market. Labor Markets It represent the factor markets while the markets for capital and land also count as factor markets or markets for the factors of production It is a market where people offer their skills to employers in exchange for salaries and other forms of compensation. Labor Market Equilibrium Market Clearing Firms may hire an employee at the existing wage rate and people who would like to have that wage rate would be able to do so. However, as this is a competitive labor market, even though there is a market clearing identified, employers and employees may leave the labor market as they may want to pay lower wages (firm) and earn higher wages (worker). Several Efficiency Wage Mechanism or Models
Real Interest Rate It is the nominal interest rate adjusted for inflation. Because of inflation, the lenders purchasing power is reduced so they can no longer buy the same amount of goods when maturity comes, compared to the money they have right now. Computation of real interest rate Real Interest Rate = Nominal Interest Rate – Expected inflation rate A loan with a nominal interest rate of 7% and an inflation of 4% would yield a real interest rate of 3%. RENT How is the demand for the land determined? How is the amount of rent determined? Lesson 9 Market Structures In terms of competitiveness, How are we going to described the spectrum of Market Structure? The spectrum of market structures reaches from pure competition, to monopolistic competition, to oligopoly, to monopoly. Perfect Competition Defined Is a market structure with many well-informed sellers and buyers of an identical product and no barriers to entering or leaving the market.
Characteristics Large numbers of small firms- When each firm in a market has no significant share of total output, and therefore, no ability to affect the product’s price. Each firm or product acts independently rather than coordinating decisions collectively. Homogeneous or identical product- All the firms in the industry must sell an identical or standardized product. Those who buy the product cannot distinguish what one seller’s offers from what another sellers offers. Very easy entry and exit- New firms do not have barriers to entry while existing firms can readily leave the market without difficulty. An entrepreneur will give up his or her business and work for someone else if the wage offered is higher than the firm’s profit. Efficiency Price and Profit When a firm is an efficient producer, it produces its product at a relatively low cost. A firm operates at peak efficiency when it produces its product at the lowest possible cost. Pareto Optimality An economy optimal or efficient when no further changes in the economy can make one individual better off without making someone else worse off. It is an allocative efficiency which occurs when the value that consumers place on goods or service equals the cost of the factor resourced utilized in the production. Monopolistic Competition Defined This market structure allow prices to go higher than marginal costs. Each producers will be considered as a monopoly but the whole market is considered competitive because the degree of differentiation still considers the possibility of having substitution effect. Characteristics Many Small Sellers- Many sellers condition is met when each firm is so small relative to the total market that its pricing decisions have negligible effect on the market price. Differentiated Product- It is a process of creating real or apparent differences between goods and services sold in the market. A differentiated product has close, but not perfect substitutes. Easy Entry and Exit- There are barriers to entry, but these barriers are relatively small. The number of firms operating in such a market is large but each firm has a small market share and firms
If the Marginal Revenue is below the Marginal Cost, monopolist should reduce its production; in return, decreasing marginal costs increases its marginal revenue. MR = MC under Monopoly If Marginal Revenue equates with Marginal Cost, it determines the profit maximizing output of monopolist, wherein this is the usual practice or general rule of every firm to maximize its profit. Monopoly seen as Inefficient Oligopoly is Defined It is a consequence of mutual interdependence A condition in which an action of one firm may cause a reaction from other competing firms in the industry. A market structure with few powerful firms makes it easier for oligopolists to collude. Characteristics: Few Sellers- The bulk of market supply is in the hands of a relatively few large firms who sell their products to many small buyers. We can therefore say that oligopoly is competition among the few. Few sellers’ condition is met when these firms are so large relative to the total market that they can affect the market price. Homogeneous or Differentiated Products- The products offered by suppliers may be identical, or more commonly differentiated from each other in one or more respects. Buyers in an oligopoly market may or may not be indifferent as to which seller’s product they buy. Difficult Market Entry- There are formidable barriers to entry which make it very difficult for new firms to enter and compete in the market. The same barriers to entry that create pure monopoly also contribute to the creation of oligopoly. High barriers to entry in an Oligopoly Exclusive financial requirements Control over essential resources Patent rights Legal barriers Features of Oligopoly Product Branding Entry Barriers Interdependent Decision Making Non-Price Competition Product Branding Each firm in the market is selling a branded (Differentiated product) Entry Barriers
Significant entry barriers into the market prevent the dilution of competition in the long run which maintains supernormal profits for the dominant firms. Interdependent Decision making Because of the stiff competition, firms in oligopolies are said to be mutually interdependent Non-price Competition Free deliveries and installation Extended warranties for consumers and credit facilities Longer operating hours Branding of products and heavy spending on advertising and marketing Extensive after sales service Expanding into new markets plus diversification of the product range Oligopolistic Behavior Price Leadership Tacit Collusion Price fixing agreement or Cartels Exclusive Dealing Price Leadership When one firm has a clear dominant position in the market and the firms with lower markets shares follow the pricing changes prompted dominant firm. Tacit Collusion It occurs when firms undertake actions that are likely to minimize a competitive response, e.g., avoiding price cutting or not attacking each other’s market. Pricing Fixing Agreements or Cartel Represents an attempt by suppliers to control supply and fix price at a level close to the level we would expect from a monopoly. The aim here is to maximize joint profits and act as if the market was a pure monopoly. Exclusive Dealing Is a contractual agreement between two firms that limits outside firms to participate or engage in. It is illegal to the extent that perfect competition is being restricted. Collusion, How to achieve Small number of firms in the industry Market demand is not too variable Demand is fairly inelastic Each firm’s output can be easily monitored Possible Break-downs of Cartel Enforcement problems Falling market demand Successful entry of non-cartel firms into the industry Monopsony Defined It occurs when there is a market power exercised by a firm when employing factors of production,