Firms and Decisions Part 2 Flashcards
Market Structure
4 types of market structure, which vary accordingly to degree of competition in terms of number and size of firms relative to market
Perfect Competition characteristics
Large number of buyers and sellers
- Each firm has no significant share of total market output, acts independently in deciding its own output level
No barriers to entry and exit
- No restrictions when they enter market, absence of financial, technical and government imposed barriers
- Accounts for large number of firms and why they can only make normal profits in long run
Homogeneous product
- Product is identical to rivals, perfect substitutes
- No non-price competition, no variety, no preference for product of any one firm
- Unable to determine price of its own product, sell it at market price
- Firm is PRICE TAKER
Perfect Knowledge
- Everyone knows prices and production costs of rivals, market costs and available production technology
- Complete information about each and every seller’s price and their quality and availability of products
Pricing decisions of PC
Price taker, no control over price of product, sell its product at prevailing market price
- If selling above market price, quantity demanded for firm’s product falls to 0 because consumers will purchase product from any other firm since products are perfect substitutes
- No incentive to reduce price below market equilibrium price because it can sell all it wants at prevailing market price
Graph of PC Firms
Perfectly price-elastic because firms is price-taker, every unit of output is sold at market price
Price = average revenue = marginal revenue
Output decisions of PC
Produce the level of output that maximises total profit, when MR = MC and MC is rising
When MR > MC, addition to total revenue from last unit of output is greater than additional cost incurred in producing, firm can increase profits if production is increased
When MC > MR, cost more to produce the last unit than what firm gains in revenue, producing the last unit caused a fall in total profits
Profit is only maximised when last unit of output produced adds as much to total revenue as total cost
When MR = MC but MC is falling, continue to produce as additional output will add more to total revenue than to total cost
PC Profitability in SR and LR
In SR, firm can make supernormal, normal or subnormal profits
In LR, firm only can make normal profits.
- Due to perfect info, presence of supernormal profits attracts new firms to enter market/ presence of subnormal profits will cause firms to shut down and leave the market
- Lack of entry/ exit barriers increase/ decrease number of firms, leading to a increase/ decrease in quantity supplied at every price level, and a rise/ drop in market supply
- Price rises/ falls, and since PC firms are price-takers, they have to sell at that lower/ higher price
- Assuming no change in cost conditions, supernormal profits are eroded/ losses of PC firms who survived is reduced.
- Firms still in the market would make only normal profits.
Monopoly Characteristics
Only seller of the good, price setter
Unique product, Lack of close substitute, demand for output is less price elastic
Imperfect Knowledge- not fully aware of costs and production of product, technology used is closely guarded, increasing price-setting ability
Complete barriers to entry and exit- new firms cannot enter industry, firms can charge relatively high price above MC and retain supernormal profits, barriers to entry are temporary as potential firms develop new technologies and devise price strategies to break into market
Monopoly Artificial barriers to entry
- Strategic barriers (strategic entry deterrence)
= Intensive advertising to boost demand for its products, persuade customers of lack of substitutes and induces customer loyalty and make it harder for potential entrants to break into market
= Gaining control over supplies of essential raw materials, ensure small amount of supply in the market, keeping prices high
= Hostile takeovers and acquisitions, dominant company buys up a rival firm
= Use supernormal profits to finance research and development to develop new products or improve on production to cut costs - Statutory barriers
= Given by force of law, regulation of intellectual property rights (patents and copy rights)
= Keep demand high and less price elastic
Monopoly Natural barriers to entry
Differences in production and costs between existing firm and potential entrant
Capacity expansions results in lower unit costs of production through exploiting more fully available internal economies of scale, helping firm to be more cost efficient and lower LRAC and more price competitive than potential entrant which operates on smaller scale
Monopoly Barriers to exit
Sunk costs are costs which cannot be recovered and cannot be diverted to other uses such as
- Capital inputs specific to an industry
- Money spent on advertising marketing research and development projects
- Money spent on building expensive and complex IT systems that are unworkable
Graph of Monopoly firm
Constrained by market demand- cannot increase both price and output at the same time
Demand/ AR and MR curve is downward sloping, but AR would be greater than MR at any output (other than first one)
- Has to lower price on all units to sell an extra unit, assuming he chargers uniform price, hence MR is the price he receives from sale of last additional unit minus loss of revenue from sale of all other units at lower price
Monopoly profit maximising condition
Produce at MR = MC
If MR > MC, each additional output unit adds more revenue than cost, increasing firm’s profits, should expand output
If MR < MC, each additional unit sold adds more to cost than revenue, so additional unit reduces profits of firm
Monopoly Profitability in SR and LR
No guarantee that monopolist makes supernormal profits in short run
Possible for monopolist to retain supernormal profits in long run by erecting high barriers to entry
Natural monopoly
Market demand is large enough to support only one large firm operating at or near its minimum efficient scale of production
Firm may have to incur overhead costs that are prohibitively high compared to variable costs, so firm can spraed overhead costs more widely over larger output level and exploit technical economies of scale more fully, achieving a lower long run cost per unit
Can reduce price of product to ward off potential entrants, new entrants cannot compete effectivily, discouraging them from entering
Monppolistic competition characteristics
Large number of small buyers and sellers relative to market size
- Relative small share of total market
- Acts independently of others as it is impossible to take into account the reaction of so many rivals, retaliation is less likely to occur as their gains in sales revenue would be spread thinly over many rivals, so the extent to which they suffer due to other firms is negligible
- Engage in non-pricing competition to differentiate products from rivals to maintain customer loyalty providing firm with certain degree of market power
Low barriers to entry and exit
- Low start-up costs, relatively easy to copy technology and relatively mobile factors of productions
- Rental and licensing costs are low
Differentiated products
- Real physical differences
* Goods are altered in a way that they differ in minor ways (materials/ workmanship)
- Imaginary differences
*Differentiated by design, branding and promotion methods
* Non-price competitive techniques increase demand for firm’s products and make demand less price elastic
- Differences in conditions of sale
*Location of shops and quality of service
Imperfect knowledge
- Dont have complete information regarding production methods and consumers dont have complete information of all available prices
MPC Profitability in SR and LR
Can make subnormal supernormal and normal profits
Makes only normal profits due to low barriers of entry
- Ease of entry allows new firms to enter industry and sell products that can be potential substitutes to those sold by existing firms, consumers have wider range of products to choose from
- (same as PC)
- Inability to retain supernormal profits in long run restricts ability of firms to engage in large-scale advertising or invest huge sums of money in research and development so products are slightly differentiated, but the presence of many rivals make product differentiation necessary
Oligopoly Characteristics
Few dominant firms relative to market size
- Firms command large proportion of market share and have relatively high market power, ability to set price and price setters
- High degree of interdependence or rival consciousness exists amongst firms
- Rival’s actions cannot be ignored as they are likely to result in significant effects, must keep an eye on competitors
High barriers to entry
- Artificial barriers to entry
*Strategic barriers
= Limit and predatory pricing where prices are deliberately set very low (lower than profit maximising price) by dominant competitor to prevent rivals from entering market because entrants cannot match price of incumbent firm without incurring losses, or to drive out existing competitors
= Advertising and branding establishes brand loyalty, making it hard for poetntial firms to break into market
*Statutory barriers are same as Monopoly
- Natural barriers
= Firms enjoy substantial internal economies of scale, new entrant cannot produce at scale of production that matches incumbent, AC of potential new firms is higher than incumbent firms AC harder for them to compete
Homogenous or differentiated products
Homogeneous products means perfect oligopoly as each firm has control over their pricing policy and each firm is a price setter
Differentiated products mean oligopoly is imperfect as there is less fear of immediate reaction from rivals
Imperfect knowledge
Sellers and buyers have incomplete info about production methods and prices, serving also as barrier to entry, icnrease price-setting ability of oligopoly
Short run shut down condition
- Firm can only reduce variable costs to zero by stopping production and shutting down
- Will not be able to avoid losses incurred from paying for fixed factors of production even if it produces a quantity of zero
- Consider whether total revenue can cover variable costs
a. If revenue earned is more than variable costs as surplus generated can be used to offset part of its fixed costs
b. If revenue earned is less, firm should shut down so losses are limited to only fixed costs instead of making losses by continuing production and incurring both fixed and variable costs - Continue production as long as TR > TVC
Cooperative model- collusive oligopoly and types of collusions
Firms work together to reduce uncertainty and increase predictability of rival’s reactions.
Agree to limit competition through agreed output quotas or fixed prices, or limits of product promotion/ development or agreements not to poach each other’s markets
Cartels and price leadership model
Cartels strategy
Increase market power to determine jointly level of output and price, behaving like a monopolist
If they sell homogenous product, their demand curve would be horizontal at market price, but if they form a cartel, will jointly face a downward sloping market demand curve, where the marginal cost curve is horizontal sum of individual members’ marginal cost curves
Can choose to produce less output and charge higher price, to maximise joint profits, each firm will have a production quota
Limitations of cartels
- Incentive to not follow production quota to increase individual profits
-> Firms are unable to produce at their profit maximising level of output for joint profits to be maximised
-> Producing more but continuing to sell at the same price would increase its individual profits
-> Other members would follow suit and produce beyond quota to maximise individual profits
-> Market supply of good increases driving down prices
-> Collusive agreement will break down, every member earns profit that is below joint profits
-> If dominated by many smaller firms monitoring members would be harder
-> Hard to formulate policy that meets the needs of every single member, make it harder to monitor perfectly and detect cheating, easier for firms to pursue own priorities
-> Smaller the no. of firms the better, so barriers to entry must be high to limit no. - Product is less standardised more unique, harder to reach agreement on price and production quotas
-> Coordination is harder when firms have different cost structure as it is more difficult to synchronise prices - Government efforts to curb collusion
-> Goes against backbone of political democracy as cartels go against free and fair competition
-> Monetary penalty requiring convicted firm to pay money after an offense has been committed
-> Possibly can significantly reduce firm’s profits, must penalising through fines may not be effective for multi-billion-dollar corporations that have alot of money to spare - Market demand is variable
-> Difficult to make agreements due to difficulties in predicting and due to need to make frequent amendments to agreements
Price leadership model
- Barometric model
-> Firm that is more adept at identifying changes in market conditions and can respond more efficiently will be market leader
-> Other producers follow its lead under assumption that price leader is aware of something they have yet to realise - Dominant firm model
-> Firm controls vast majority of market share within an industry. enjoys lowest average cost of production
-> As dominant firm adjusts prices, any smaller firms within segment must follow
Informal for firms to determine price and avoid undercutting each other
Price set by market leader in tacit collusion is accepted as market price by other firms, prices tend to be stable, when leader initiates a change other firms will follow