Neo-classical Production Function Characteristics

The neo-classical production function is a fundamental concept in microeconomics. Let's examine the characteristics mentioned:

1. Positive and Diminishing Marginal Productivities

A key feature is that each factor of production (like labor or capital) has a positive marginal product (adding more of a factor increases output) but a diminishing marginal product (each additional unit of a factor adds less to output than the previous one). This reflects the law of diminishing returns.

2. Constant Returns to Scale

Many standard neo-classical production functions exhibit constant returns to scale. This means that if all inputs are increased by a certain proportion, output increases by the same proportion. For example, doubling all inputs would double the output.

3. Inada Conditions

The Inada conditions are theoretical properties often assumed for neo-classical production functions. They typically state:

• The marginal product of a factor approaches infinity as its input approaches zero.
• The marginal product of a factor approaches zero as its input approaches infinity.

These conditions ensure that factors are essential and that diminishing returns eventually dominate.

Conclusion

All three characteristics—positive and diminishing marginal productivities, constant returns to scale, and the satisfaction of Inada conditions—are typically associated with the neo-classical production function. Therefore, all statements (a), (b), and (c) are correct.