1) The law of diminishing returns states that as successive units of a variable input are added to a fixed input, beyond a certain point, the marginal product of the variable input will decline.
Justification: This law holds because, with a fixed factor of production (e.g., land or capital), adding more and more units of a variable factor (e.g., labor) eventually leads to overcrowding, less efficient utilization of the fixed factor, and reduced opportunities for further specialization, causing the additional output from each extra unit of the variable input to decrease.
2) Three assumptions of the law of diminishing returns are:
• At least one factor of production is fixed.
• The state of technology remains constant.
• All units of the variable factor are homogeneous (of equal quality).
3) Three characteristics of public goods are:
• Non-rivalry: One person's consumption of the good does not reduce its availability for others.
• Non-excludability: It is impossible or very costly to prevent individuals from consuming the good, even if they do not pay for it.
• Non-rejectability: Individuals cannot opt out of consuming the good once it is provided.
4) Four reasons why the government of Cameroon might subsidize the production of merit goods are:
• To correct positive externalities: Merit goods generate benefits for third parties (e.g., education benefits society), which the market under-provides. Subsidies encourage greater production and consumption.
• To ensure equity and access: Subsidies make essential goods and services (like healthcare or education) more affordable and accessible to lower-income groups, promoting social welfare.
• To address information failure: Consumers may underestimate the long-term benefits of merit goods. Subsidies encourage consumption to overcome this lack of information.
• To promote economic development: Investing in human capital through subsidized education and healthcare can lead to a more productive workforce and long-term economic growth.
5) Four factors that may determine the size of a firm are:
• Capital availability: Firms with greater access to financial capital can invest in more resources, technology, and expansion, leading to a larger scale of operation.
• Market size: The potential demand for a firm's products or services in the market influences how large it can grow. A larger market allows for greater output and economies of scale.
• Technology: The type of technology used can dictate optimal firm size. Some technologies require large-scale production to be efficient, while others are suited for smaller operations.
• Managerial ability: The effectiveness and capacity of management to organize, coordinate, and control a larger workforce and more complex operations can limit or enable a firm's growth.