Question 1

Why do we suggest making file and variable names as intuitive as possible? Explain.

Accepted Answer

We recommend making file and variable names as intuitive as possible because we are often forced to put our project aside for longer periods of time and we need to be able to get back up-to-speed as quickly as possible when returning to it.If our file and variable names are not intuitive,then doing so is much more difficult and time-consuming.

Question 2

Panel data are data collected

Accepted Answer

A) by independent,random sampling. 
B) for many different individuals,countries,firms,etc.in a given time-period. 
C) for a given individual,country,firm,etc.over many different time periods. 
D) for a number of individuals,countries,firms,etc.over many different time periods. 
A) by independent,random sampling. 
B) for many different individuals,countries,firms,etc.in a given time-period. 
C) for a given individual,country,firm,etc.over many different time periods. 
D) for a number of individuals,countries,firms,etc.over many different time periods. D

Question 3

Publicly-available data can be obtained through

Accepted Answer

A) formal request and/or having the appropriate connections. 
B) personally conducting a survey asking people for information and recording their responses. 
C) the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
D) obtaining data from your work that cannot be shared with other individuals. 
A) formal request and/or having the appropriate connections. 
B) personally conducting a survey asking people for information and recording their responses. 
C) the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
D) obtaining data from your work that cannot be shared with other individuals. C

Question 4

Personal survey data can be obtained through

Accepted Answer

A) the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
B) data that is available through the Bureau of Labor Statistics or similar agency. 
C) formal request and/or having the appropriate connections. 
D) personally conducting a survey asking people for information and recording their responses. 
A) the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
B) data that is available through the Bureau of Labor Statistics or similar agency. 
C) formal request and/or having the appropriate connections. 
D) personally conducting a survey asking people for information and recording their responses.

Question 5

When working with cross-section data,how do you choose the appropriate unit of observation? Explain.

Accepted Answer

Your first concern should be the unit of

Question 6

Time-series data is data collected

Accepted Answer

A) without replacement. 
B) for a given individual,country,firm,etc.over many different time periods. 
C) for a number of individuals,countries,firms,etc.over many different time periods. 
D) for many different individuals,countries,firms,etc.in a given time-period. 
A) without replacement. 
B) for a given individual,country,firm,etc.over many different time periods. 
C) for a number of individuals,countries,firms,etc.over many different time periods. 
D) for many different individuals,countries,firms,etc.in a given time-period.

Question 7

Why is data collection so important? Explain.

Accepted Answer

Analyzing data is the entire purpose of

Question 8

Why do we recommend saving one master file while performing calculations in another file? Explain.

Accepted Answer

We recommend saving one master file so t

Question 9

Suppose you have identified a good question of interest and you expect appropriate data to be available on the internet.What is the first thing that you should do to locate such data? Explain.

Accepted Answer

Perform an internet search.The

Question 10

Private-use data includes

Accepted Answer

A) data that is available through the Bureau of Labor Statistics or similar agency. 
B) through the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
C) data that is collected by the government for public consumption. 
D) government surveys or internal firm-level data that can be obtained through formal request and/or having the appropriate connections. 
A) data that is available through the Bureau of Labor Statistics or similar agency. 
B) through the internet or through formal Freedom of Information Act (FOI
A) requests from the appropriate agency. 
C) data that is collected by the government for public consumption. 
D) government surveys or internal firm-level data that can be obtained through formal request and/or having the appropriate connections.

Question 11

Why is it potentially valuable to perform calculations in a new worksheet? Explain.

Accepted Answer

Calculations often require changing the

Question 12

Cross-sectional data is data collected

Accepted Answer

A) for a number of individuals,countries,firms,etc.over many different time periods. 
B) for a given individual,country,firm,etc.over many different time periods. 
C) for many different individuals,countries,firms,etc.in a given time-period. 
D) with replacement. 
A) for a number of individuals,countries,firms,etc.over many different time periods. 
B) for a given individual,country,firm,etc.over many different time periods. 
C) for many different individuals,countries,firms,etc.in a given time-period. 
D) with replacement.

Question 13

Suppose you have identified a good question of interest but you cannot locate appropriate data on the internet.What could you do to collect appropriate data? Explain.

Accepted Answer

You could perform yo

Question 14

Why are data management techniques so important? What is the primary goal of such techniques? Explain.

Accepted Answer

Data management techniques are important

Question 15

Why do we recommend including a worksheet identifying all data sources used to construct our master file? Explain.

Accepted Answer

We recommend including a worksheet ident

Question 16

Why must we be careful when merging data from different sources into one file? Explain.

Accepted Answer

We must be careful when merging data fro

Why do we suggest making file and variable names as intuitive as possible? Explain.

Panel data are data collected

Publicly-available data can be obtained through

Personal survey data can be obtained through

When working with cross-section data,how do you choose the appropriate unit of observation? Explain.

Time-series data is data collected

Why is data collection so important? Explain.

Why do we recommend saving one master file while performing calculations in another file? Explain.

Suppose you have identified a good question of interest and you expect appropriate data to be available on the internet.What is the first thing that you should do to locate such data? Explain.

Private-use data includes

Why is it potentially valuable to perform calculations in a new worksheet? Explain.

Cross-sectional data is data collected

Suppose you have identified a good question of interest but you cannot locate appropriate data on the internet.What could you do to collect appropriate data? Explain.

Why are data management techniques so important? What is the primary goal of such techniques? Explain.

Why do we recommend including a worksheet identifying all data sources used to construct our master file? Explain.

Why must we be careful when merging data from different sources into one file? Explain.

An Introduction to Econometrics and Statistical Inference

Summary Statistics

Simple Linear Regression

Hypothesis Testing in Linear Regression Analysis

Multiple Linear Regression Analysis

Qualitative Variables and Non-Linearities in Multiple Linear Regression Analysis

Model Selection in Multiple Linear Regression Analysis

Heteroskedasticity

Time Series Analysis

Auto-Correlation

Limited Dependent Variables

Panel Data

Instrumental Variables for Simultaneous Equations, Endogenous Independent Variables, and Measurement Error

Quantile Regression, Count Data, Sample Selection Bias, and Quasi-Experimental Methods

Filters

Exam 2: Collection and Management of Data

Why do we suggest making file and variable names as intuitive as possible? Explain.

Panel data are data collected

Publicly-available data can be obtained through

Personal survey data can be obtained through

When working with cross-section data,how do you choose the appropriate unit of observation? Explain.

Time-series data is data collected

Why is data collection so important? Explain.

Why do we recommend saving one master file while performing calculations in another file? Explain.

Suppose you have identified a good question of interest and you expect appropriate data to be available on the internet.What is the first thing that you should do to locate such data? Explain.

Private-use data includes

Why is it potentially valuable to perform calculations in a new worksheet? Explain.

Cross-sectional data is data collected

Suppose you have identified a good question of interest but you cannot locate appropriate data on the internet.What could you do to collect appropriate data? Explain.

Why are data management techniques so important? What is the primary goal of such techniques? Explain.

Why do we recommend including a worksheet identifying all data sources used to construct our master file? Explain.

Why must we be careful when merging data from different sources into one file? Explain.

An Introduction to Econometrics and Statistical Inference

Summary Statistics

Simple Linear Regression

Hypothesis Testing in Linear Regression Analysis

Multiple Linear Regression Analysis

Qualitative Variables and Non-Linearities in Multiple Linear Regression Analysis

Model Selection in Multiple Linear Regression Analysis

Heteroskedasticity

Time Series Analysis

Auto-Correlation

Limited Dependent Variables

Panel Data

Instrumental Variables for Simultaneous Equations, Endogenous Independent Variables, and Measurement Error

Quantile Regression, Count Data, Sample Selection Bias, and Quasi-Experimental Methods

Filters