Week 10: Monopolistic Competition and Oligopolies Flashcards
Perfect Competition
No market power
Monopolistic Competition
Some market power
Monopoly Competition
: Complete market power
Oligopoly competition
a lot of market power
Order the 4 types of competition from least to most power
perfect, monopolistic, oligopoly, monopoly
Oligopolies:
- Few sellers
- Barriers to entry
- Interdependence
- Firms decisions depend heavily on what other firms do (if they do this, I will do this)
- Need a model that can help us think through strategic behavior (game theory)
Collusion -
is a non-competitive, secret, and sometimes illegal agreement between rivals which attempts to disrupt the market’s equilibrium. The act of collusion involves people or companies which would typically compete against one another, but who conspire to work together to gain an unfair market advantage
Strategic pricing behaviour -
uses different factors, like product value and consumer demand, to determine how to price products and services.
- You can have bargaining power
Other applications of game theory:
- Original prisoner’s dilemma
- Collective actions like strikes and protests
- Financial industry actions
- Climate change
- Macroeconomics: inflation explanation
Prisoners dilemma
The prisoner’s dilemma is a game theory thought experiment that involves two rational agents, each of whom can cooperate for mutual benefit or betray their partner for individual reward.
If they both work together = they both benefit the most
If they both don’t work together = they get a smaller benefit
If one tries to work together and the other doesn’t = one the who tried to work together gets burned the worst while the selfish one gets the benefits without any work.
Perfectly competitive markets:
- Large numbers of buyers and sellers
- Free entry and exit
- Perfect information
- Homogenous products (each shirt is identical)
Perfectly competitive markets demand curve
horizontal
Monopolistically Competitive Markets:
- Large numbers of buyers and sellers
- Free entry and exit
- Perfect information
- Product differentiation (different products)
- If the sellers attempts to charge more or increase the price the outcome depends on how different and desired the sellers T-shirts / products are
The centrality of product differentiation
- The more differentiated your product is, the more preference people have for it, the more pricing power you get as a seller.
- Differences can be real or perceived