The Variable Used to Specify a Cutoff Score for Eligibility

question 41

Multiple Choice

The variable used to specify a cutoff score for eligibility for some treatment in a regression-discontinuity design is called ______.

• A)control variable
• B)assignment variable
• C)independent variables
• D)dependent variable

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Definitions:

Long-Run

A period of time in economics where all factors of production and costs are variable, allowing full adjustment to market changes.

Short-Run

A period of time during which at least one input, such as plant size, cannot be changed; contrasts with the long-run where all inputs are variable.

Marginal Cost

Marginal cost is the additional cost incurred from producing one extra unit of a good or service, an important concept in economics for determining optimal production levels.

Average Total Cost

The total cost of production (fixed and variable costs combined) divided by the quantity of output, a key factor in pricing and profitability analyses.