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

Idiosyncratic error is the error that occurs due to _____.

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

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

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

If a random sample is drawn at each time period,pooling the resulting random samples gives us a panel data set.

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

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

The assumption of "strict exogeneity" in a regression model means that _____

A Chow test _____.

The average treatment effect measures _____.

A regression model exhibits unobserved heterogeneity if _____.

A data set is a balanced panel if it _____.

Which of the following is a reason for using independently pooled cross sections?

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

First-differenced estimation in a panel data analysis is subject to serious biases if _____.

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

Composite error is the error that occurs due to _____.

Which of the following is true of a natural experiment?

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

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