PHƯƠNG PHÁP NGHIÊN CỨU

Econometrics is the branch of economics that _____.

• a. studies the behavior of individual economic agents in making economic decisions
• b. develops and uses statistical methods for estimating economic relationships
• c. deals with the performance, structure, behavior, and decision-making of an economy as a whole
• d. applies mathematical methods to represent economic theories and solve economic problems.

Nonexperimental data is called _____.

• a. cross-sectional data
• b. time series data
• c. observational data
• d. panel data

Which of the following is true of experimental data?

• a. Experimental data are collected in laboratory environments in the natural sciences.
• b. Experimental data cannot be collected in a controlled environment.
• c. Experimental data is sometimes called observational data.
• d. Experimental data is sometimes called retrospective data.

An empirical analysis relies on _____to test a theory.

• a. common sense
• b. ethical considerations
• c. data
• d. customs and conventions

The term ‘u’ in an econometric model is usually referred to as the _____.

• a. error term
• b. parameter
• c. hypothesis
• d. dependent variable

The parameters of an econometric model _____.

• a. include all unobserved factors affecting the variable being studied
• b. describe the strength of the relationship between the variable under study and the factors affecting it
• c. refer to the explanatory variables included in the model
• d. refer to the predictions that can be made using the model

Which of the following is the first step in empirical economic analysis?

• a. Collection of data
• b. Statement of hypotheses
• c. Specification of an econometric model
• d. Testing of hypotheses

A data set that consists of a sample of individuals, households, firms, cities, states, countries, or a variety of other units, taken at a given point in time, is called a(n) _____.

• a. cross-sectional data set
• b. longitudinal data set
• c. time series data set
• d. experimental data set

Data on the income of law graduates collected at different times during the same year is_____.

• a. panel data
• b. experimental data
• c. time series data
• d. cross-sectional data

A data set that consists of observations on a variable or several variables over time is called a _____ data set.

• a. binary
• b. cross-sectional
• c. time series
• d. experimental