Which of the Following Has Led to Gains for Top

question 8

Multiple Choice

Which of the following has led to gains for top earners in recent decades?

• A)changes in tax policy
• B)changes in the nation's job market
• C)the "compression effect" described by economist Paul Krugman
• D)a booming goods and services sector
• E)All of these answers are correct.

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Definitions:

Dependent Variable

The variable in an experiment that is expected to change as a result of changes made to the independent variable.

First-Order Polynomial Model

A mathematical model of a linear relationship between the independent variable and the dependent variable, characterized by having no exponents higher than one.

Predictor Variable

A variable used in statistical models to predict or influence the outcomes of a dependent variable.

First-Order Model

A model that describes a system's behavior using a first-degree polynomial, indicating linear relationships between variables.