Key Economic Market Structures and Factor Markets
Market Share
Market share represents the proportion of total sales in a market that a particular firm accounts for. It is calculated as a firm's sales divided by total market sales, multiplied by one hundred. A higher market share often indicates greater control or influence within that market.
Understanding Market Structures
Perfectly Competitive Market
- Concentration: Many businesses
- Influence on Price: None (price takers)
- Product Differentiation: No differentiation (homogeneous products)
- Competition: Very strong
- Transparency: Total
- Barriers to Entry/Exit: None
Monopoly
- Concentration: One enterprise
- Influence on Price: Total (price maker)
- Product Differentiation: Not applicable (single product)
- Competition: None
- Transparency: Low
- Barriers to Entry/Exit: Significant barriers exist
Oligopoly
- Concentration: Few companies
- Product Differentiation: Can be homogeneous or differentiated
- Competition: Very strong (often non-price competition)
- Barriers to Entry/Exit: Significant barriers exist
Cartel
A cartel is an informal grouping of companies that, while retaining their independence, combine to reduce or eliminate competition in the market, often by fixing prices or limiting output.
Monopolistic Competition
- Concentration: Many businesses
- Product Differentiation: Some differentiation exists
- Competition: Very strong
- Barriers to Entry/Exit: No significant barriers
Circular Flow of Income and Factor Markets
The circular flow of income describes the set of relationships and flows between different economic actors within an economy. Income, in this context, represents the value or price of a factor of production over a given period.
Income is derived from various sources:
- Wages: Remuneration for labor
- Rent: Payment for the use of natural resources
- Interest: Return on capital
The origins of these incomes lie in the markets for factors of production, which are typically divided into three distinct markets:
- Natural Resources Market
- Capital Market
- Labor Market
Natural Resources Market
In the context of the natural resources market, rent refers not to the outright price of the resource itself, but rather to the value derived from its use, often termed usufruct. Natural resources are assigned a value based on their productivity, which reflects their capacity to yield output or "bear fruit" when utilized.
This retribution for the use of natural resources is commonly known as land rent or a lease/rental payment. The payment received by owners of natural resources measures the resource's ability to generate income.
Given that the supply of natural resources is often considered constant in the short run, its graphical representation in economic models is typically a vertical line.
Capital Market
In the capital market, interest represents the value of capital services, or more specifically, the price of money or borrowed funds.
Labor Market
In the labor market, wages are the remuneration paid for employed labor. In Spain, a minimum wage is established, which any worker, regardless of their profession, should receive.
Factors Influencing Wages:
- Demand for Labor:
- Level of economic activity
- Price of the good or service produced
- Productivity of labor
- Supply of Labor:
- Overall wage levels
- Population characteristics (e.g., size, age distribution, education)
Employment Policy
Unemployment is one of the most serious problems facing developed societies. A key priority for any government is to protect the unemployed and to create new employment opportunities. In Spain, this is addressed through employment policy.
Employment policy encompasses a set of plans and procedures whose primary objective is to reduce unemployment figures within an economy.