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Plausibility of a Production Model
A mathematical model for production is considered plausible if it meets two key criteria: 1) It produces zero output when there is zero input, and positive output for any positive amount of input. 2) It is always increasing, meaning more input always results in more output.
Given the case study below, analyze the proposed production model against these two criteria. Does it represent a plausible production function? Justify your conclusion by examining each criterion separately.
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Economics
Introduction to Microeconomics Course
The Economy 2.0 Microeconomics @ CORE Econ
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Increasing Nature of the Production Function
Fixed Inputs and Diminishing Marginal Product
General Production Function of a Farmer (y=g(h))
A production function describes the relationship between a variable input (X) and the resulting total output (Y), for non-negative values of X. For this relationship to be economically plausible, it must satisfy two key conditions: 1) Zero input results in zero output, and any positive input yields a positive output. 2) The function must be consistently increasing, meaning more input always leads to more output. Based on these conditions, which of the following mathematical expressions could NOT represent a plausible production function?
Plausibility of a Production Model
A relationship between a single input (X) and total output (Y) must meet two core conditions to be considered an economically plausible production model: 1) Output is zero if input is zero, and positive for any positive input. 2) Output consistently increases as input increases. Analyze each mathematical function below (assuming X ≥ 0) and match it to the description that correctly explains its plausibility.
Plausibility of a Proposed Production Function
Consider a production process where the relationship between a single input (X, where X ≥ 0) and total output (Y) is described by the equation Y = -X² + 10X. This equation represents a plausible production function for all positive values of input X because it shows that adding more input initially leads to a significant increase in output.
Evaluating a Production Model's Plausibility
Economic Rationale for Production Model Properties
Critique of a Proposed Production Model
A production process is described by the relationship between a single input (X) and the total output (Y), where X ≥ 0. For this relationship to be considered a viable model of production, it must satisfy two fundamental properties: 1) no input produces no output, and any positive amount of input produces a positive amount of output; 2) the total output must consistently rise as more input is used. Given these properties, which of the following equations represents a plausible production function for all positive values of the input?
Critiquing and Correcting a Production Model