in general is a study of how an entity, whether it be an individual or an organization, manages and allocates its resources in the most efficient way possible.
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The **economic problem**
states however that our needs our unlimited and as mentioned earlier, the resources available are scarce.
filters our scope to individuals in an economy while keeping the overall economy in mind.
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**Macroeconomics**:
we consider the big picture- the nation’s economy as a whole.
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**Land**:
natural resources and raw material. Ex: water, oil, minerals and such.
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* **Labor**:
physical labor, skills, and effort devoted into a task where workers are paid.
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**Capital**:
is usually referred to as the liquid asset, or monetary value
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* **Entrepreneurship**
* : the ability of an individual to coordinate the other categories of resources to produce a good or service
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**Trade-offs:**
The alternative choice which must be given up in order to make a decision. The goods and services which you do not choose are the trade-offs.
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* **Opportunity costs**:
* This is the cost we forgo or sacrifice, to opt for another choice. The next best alternative if your first choice is unavailable.
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**Positive Economics:**
this approach to economics is based on facts and figures.
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**What goods and services will be produced?**
The economy has to decide what goods and services the society needs in order to properly allocate resources.
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* **How will goods and services be produced?**
* This deals with how businesses will go about producing these goods and services.
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**For whom will the goods and services be produced?**
This question decides who will be able to consume these goods and services, to where these resources where will be allocated.
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**Economic growth**
a sustained rise in aggregate output and an increase in standard of living (causes are developments in technology, or an increase in resources)
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**Productive efficiency**
lowest cost possible on the PPC
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**Allocative efficiency**
the economy allocates resources so consumers are well off as possible, producing what is demanded
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* **Constant opportunity cost**
Occurs when OC stays the same as the production of a good increases.
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* **Increasing opportunity cost**
When one good is produced more, you give up more of another good.
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**Absolute Advantage**
Occurs when a firm as the ability to produce a specific amount of goods or services in comparison to the others.
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**Comparative Advantage:**
The ability of a firm to produce a good or service at the lowest possible cost
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**Terms of Trade**
people split up the work, and provide each other with a good in return for another. It is also the rate at which one good can be exchanged for another
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I**mplicit costs**:
monetary or non-monetary opportunity costs in terms of making a choice.
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**Explicit costs**:
traditional out of pocket costs which are associated with choosing one course of action.
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**Utility**:
the measure of personal satisfaction (util is a unit of utility)
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**Marginal utility**:
the change in total utility by consumer one additional unit of that good/service
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* **Principle of diminishing marginal utility** :
additional units of a good/service add less total utility than the previous units do
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**Demand**:
the quantity which a consumer/buyer are willing and able to buy at different prices
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**Law of Demand**:
As price increases, demand decreases, and as price decreases, demand increases
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* **Complements**
\
goods/services that are consumed together (ex. hamburgers and buns)
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**Income effect**:
as income increases, people will buy more of normal goods, and less of inferior goods
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**Normal good**
increase in demand when consumer’s income increases (ex. oreos)
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**Inferior good :**
increase in demand when consumer’s income decreases (ex. off brand oreos)
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**Diminishing marginal utility**:
As more units of a product are consumed, the satisfaction/utility it provides tends to decline
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**Supply**:
different quantities of goods/services which sellers are willing and able to produce at a given price
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**Law of supply**
as price increases, quantity supplied also increases, this is a direct relation.
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@@**Elasticity**@@:
how much the Q is affected by P.
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**Elastic demand**
means that the goods are subject to be affected by a change in price.
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**Inelastic demand**
means that goods are not subject to be affected by a change in price.
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@@**PES**@@:
measures how sensitive are sellers to price changes on good
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* @@**Characteristics of inelastic Supply**@@
Difficult production, high costs, hard to change to alternative, high barriers to entry,
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* @@**Characteristics of Elastic Supply:**@@
\
Easy production, low cost, easy to switch to, low barriers to entry, >1
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@@**Equilibrium**@@ :
occurs when no one is better off doing something else
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* **Consumer surplus** :
price consumers are willing to pay - actual price
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**Producer surplus** :
actual price -price the producer is willing to sell for
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@@**Double shift**@@ :
either price or quantity will be unknown. This rule states that when there is a simultaneous shift in both demand and supply, either price or quantity would stay indeterminate
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@@**Deadweight loss (DWL)**@@
\: transactions that should occur, but don’t because of government intervention (calculate the area = triangle formula, ½(base x height)
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**Price floor** :
minimum price a supplier can charge, price is set above equilibrium (causes shortage)
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**Price ceiling** :
maximum price a supplier can charge, price is set below equilibrium (causes surplus)
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**Quota** :
upper limit of a quantity that can be bought or sold (known as quantity control)
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* **Demand price** :
the price at which consumers will demand that quantity
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**Supply price :**
the price at which producers will supply that quantity
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**Quota rent** :
difference between demand price and supply price
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**Tariffs** :
tax placed on a good that is imported or exported
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**Import quota** :
restriction on the quantity of a good that can be imported
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@@Production function@@ :
relation between the quantity of inputs a firm uses and the quantity of output it produces.
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**Capital** :
goods that are used to produce goods/services
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**Fixed input**
: an input whose quantity doesn’t change
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**Variable input**
\: an input whose quantity can change
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**Economies of scale**
\: LRATC declines as output increases
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**Diseconomies of scale** :
LRATC increaess as output increases
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* **Constant returns to scale**
\
output increase directly in proportion to an increase in all inputs (ex. input doubles, output also doubles)
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**Marginal Revenue:**
additional revenue gained by producing one more unit
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* The **profit Maximising point**
* for a firm is where it aims to increase revenue due to costs possibly being high as well. * \
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* **Shut down rule**
* a firm should not produce unless it can cover its variable costs. If it is not able to do so, firms are better off producing nothing. However, this only tends to happen in perfect competition) * \
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* Firms in this market are **price takers**,
* who are firms which cannot charge a higher price than the equilibrium price. This means that they have no market power.
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@@**Monopoly**@@:
market structure where there is only one firm producing a product
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**Allocatively efficient**
due to them producing at MR=MC
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**Productively inefficient**
because they don’t produce at the minimum of the ATC
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* **Natural monopoly**
has large fixed costs, and long economies of scale, has downward sloping ATC curve
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* **Price discrimination** * \
occurs in specific industries as consumers pay a different price for the same good.
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**Imperfect price discrimination** :
charging consumers different prices based on the buyer’s willingness to pay
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**Perfect price discrimination**
charges all consumers the maximum they are willing to pay, no deadweight loss, produce at P=MC
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@@**Monopolistic competition:**@@
is another term for imperfect competition, and occurs when many companies offer competing products which are similar but not perfect substitutes.
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* @@**Oligopoly Characteristics**@@
Small number of firms, standard or differentiated product
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**Payoff matrix** :
represents the payoff to each player to show combinations of given strategies
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**Derived demand** :
the demand from a resource is derived by product demand
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* **Marginal revenue product (MRP)**
* : the additional revenue that is generated by an additional resource/worker
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Market curve
standard supply and demand curve
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**Monopsonistic Markets**
\
Many sellers, one buyer
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Externality :
when external cost/benefit is placed on members of society who did not pay for them
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Negative externality
\: when someone uses a product, it decreases the benefit of others (ex. smoking), MSC > MPC (correct with per unit tax)
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Positive externality
when one uses a product, others benefit (ex. education) MSC < MPC (correct with subsidy)
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Rivalrous good
if someone consumers a product, others cannot
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Excludable good
non payers can be prevented from enjoying the benefits
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Public goods
underproduced due to freeloader problem
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Freeloader problem
people can enjoy the benefit of a good/service without paying
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**Lump sum subsidy** :
gives benefit no matter how many units
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**Non price regulation**
works like taxes, they ensure competition/environmental protection/health and safety
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**Antitrust policy**
promote competition and prevents monopolies
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**Income distribution**
: measures % of income that goes to individuals in different percentiles/brackets
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* **Lorenz curve**
* measures the distribution of income equality (you want to be as close of possible to the perfect equality line as possible)
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Proportional
everyone pays the same percentage of their income (no impact on income distribution)
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* **Progressive**
taxes are higher % on people earning a higher income (reduces income inequality)
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Flashcard (52)