A) is used to test the presence of heteroskedasticty in a regression model B) is used to determine how multiple regression differs across two groups C) cannot detect changes in the slope coefficients of dependent variables over time D) cannot be computed for more than two time periods A) is used to test the presence of heteroskedasticty in a regression model B) is used to determine how multiple regression differs across two groups C) cannot detect changes in the slope coefficients of dependent variables over time D) cannot be computed for more than two time periods

Exam 13: Pooling Cross Sections Across Time Simple Panel Data Methods

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A natural experiment always has a control group, which is affected by the policy change, and a treatment group, which is not affected by the policy change.

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(True/False)

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Question 1

Correct Answer:

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False

Ordinary least squares estimation is subject to heterogeneity bias if _____.

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(Multiple Choice)

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Question 2

Correct Answer:

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If each variable in a single cross-sectional equation is differenced over time, then it is called the:

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(Multiple Choice)

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Question 3

Correct Answer:

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A natural experiment occurs when an endogenous event changes the environment in which individuals, families, firms, or cities operate.

(True/False)

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Question 4

Which of the following assumptions is needed for the usual standard errors to be valid when differencing with more than two time periods?

(Multiple Choice)

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Question 5

Which of the following assumptions is required to obtain a first-differenced estimator in a two-period panel data analysis?

(Multiple Choice)

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Question 6

Pooling independent cross sections across time is useful in providing precise estimators if _____.

(Multiple Choice)

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Question 7

Idiosyncratic error is the error that occurs due to _____.

(Multiple Choice)

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Question 8

To see if the effect of an explanatory variable has changed over a certain time period, we can interact the time dummy with that variable.

(True/False)

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Question 9

Suppose we are studying the effects of expanded income supplement for senior citizens on their health. We use the two-group, to-period differences-in-differences setup, with working-age citizens as our control group. Which of the following is a key assumption for the validity of this identification strategy?

(Multiple Choice)

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Question 10

One way of organizing two periods of panel data is to have only one record per cross-sectional unit.

(True/False)

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Question 11

A regression model exhibits unobserved heterogeneity if _____.

(Multiple Choice)

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Question 12

A Chow test _____.

(Multiple Choice)

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Question 13

Which of the following is an advantage of panel data?

(Multiple Choice)

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Question 14

The systematic differences between the control and treatment groups can be controlled by taking two years data, _____.

(Multiple Choice)

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Question 15

First-differenced estimation gives unbiased estimators if the regression model includes a lagged dependent variable.

(True/False)

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Question 16

Which of the following is true of a natural experiment?

(Multiple Choice)

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Question 17

Two-period panel data is used for program evaluation and policy analysis.

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Question 18

Composite error is the error that occurs due to _____.

(Multiple Choice)

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Question 19

The general approach to obtaining fully robust standard errors and test statistics in the context of panel data is known as _____.

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Question 20

Showing 1 - 20 of 28

A natural experiment always has a control group, which is affected by the policy change, and a treatment group, which is not affected by the policy change.

Ordinary least squares estimation is subject to heterogeneity bias if _____.

If each variable in a single cross-sectional equation is differenced over time, then it is called the:

A natural experiment occurs when an endogenous event changes the environment in which individuals, families, firms, or cities operate.

Which of the following assumptions is needed for the usual standard errors to be valid when differencing with more than two time periods?

Which of the following assumptions is required to obtain a first-differenced estimator in a two-period panel data analysis?

Pooling independent cross sections across time is useful in providing precise estimators if _____.

Idiosyncratic error is the error that occurs due to _____.

To see if the effect of an explanatory variable has changed over a certain time period, we can interact the time dummy with that variable.

One way of organizing two periods of panel data is to have only one record per cross-sectional unit.

A regression model exhibits unobserved heterogeneity if _____.

A Chow test _____.

Which of the following is an advantage of panel data?

The systematic differences between the control and treatment groups can be controlled by taking two years data, _____.

First-differenced estimation gives unbiased estimators if the regression model includes a lagged dependent variable.

Which of the following is true of a natural experiment?

Two-period panel data is used for program evaluation and policy analysis.

Composite error is the error that occurs due to _____.

The general approach to obtaining fully robust standard errors and test statistics in the context of panel data is known as _____.

The Nature of Econometrics and Economic Data

The Simple Regression Model

Multiple Regression Analysis Estimation

Multiple Regression Analysis Inference

Multiple Regression Analysis Ols Asymptotics

Multiple Regression Analysis Further Issues

Multiple Regression Analysis With Qualitative Information

Heteroskedasticity

More on Specification and Data Issues

Basic Regression Analysis With Time Series Data

Further Issues in Using Ols With Time Sries Data

Serial Correlation and Heteroskedasticity in Time Series Regressions

Advanced Panel Data Methods

Instrumental Variables Estimation and Two Strage Least Squares

Simultaneous Equations Models

Limited Dependent Variable Models and Sample Selection Correctons

Advanced Time Series Topics

Carrying Out an Empirical Project

Filters

Exam 13: Pooling Cross Sections Across Time Simple Panel Data Methods

A natural experiment always has a control group, which is affected by the policy change, and a treatment group, which is not affected by the policy change.

Ordinary least squares estimation is subject to heterogeneity bias if _____.

​If each variable in a single cross-sectional equation is differenced over time, then it is called the:

A natural experiment occurs when an endogenous event changes the environment in which individuals, families, firms, or cities operate.

Which of the following assumptions is needed for the usual standard errors to be valid when differencing with more than two time periods?

Which of the following assumptions is required to obtain a first-differenced estimator in a two-period panel data analysis?

Pooling independent cross sections across time is useful in providing precise estimators if _____.

Idiosyncratic error is the error that occurs due to _____.

To see if the effect of an explanatory variable has changed over a certain time period, we can interact the time dummy with that variable.

One way of organizing two periods of panel data is to have only one record per cross-sectional unit.

A regression model exhibits unobserved heterogeneity if _____.

A Chow test _____.

​Which of the following is an advantage of panel data?

The systematic differences between the control and treatment groups can be controlled by taking two years data, _____.​

First-differenced estimation gives unbiased estimators if the regression model includes a lagged dependent variable.

Which of the following is true of a natural experiment?

Two-period panel data is used for program evaluation and policy analysis.

Composite error is the error that occurs due to _____.

The general approach to obtaining fully robust standard errors and test statistics in the context of panel data is known as _____.

The Nature of Econometrics and Economic Data

The Simple Regression Model

Multiple Regression Analysis Estimation

Multiple Regression Analysis Inference

Multiple Regression Analysis Ols Asymptotics

Multiple Regression Analysis Further Issues

Multiple Regression Analysis With Qualitative Information

Heteroskedasticity

More on Specification and Data Issues

Basic Regression Analysis With Time Series Data

Further Issues in Using Ols With Time Sries Data

Serial Correlation and Heteroskedasticity in Time Series Regressions

Advanced Panel Data Methods

Instrumental Variables Estimation and Two Strage Least Squares

Simultaneous Equations Models

Limited Dependent Variable Models and Sample Selection Correctons

Advanced Time Series Topics

Carrying Out an Empirical Project

Filters

If each variable in a single cross-sectional equation is differenced over time, then it is called the:

Which of the following is an advantage of panel data?

The systematic differences between the control and treatment groups can be controlled by taking two years data, _____.