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stat代写-ECON 644

时间：2021-03-12

University of Maryland, Department of economics

Master of Professional Studies in Applied Economics

ECON 644: Empirical Analysis II (Introduction to Economic Models)

Term Project Instruction

1

This short instruction provides some basic rules for the term project. I will explain the goal in class and

revise this document based on questions you ask about the project. So please stop by and ask questions!

As stated in the program’s website, our program intends to train “professionals who can analyze and

interpret sophisticated economic data and intelligently apply economic theory.” One way to practice

such analyses is to replicate a research and write a short version of a published paper.

The two Appendices explain the concept of replicability and introduce some journals that publish data

sets.

Your final draft should have all the components of a standard research paper. The structure and the

format of the paper should be similar to working papers or published papers.

The components of a standard paper ae:

• Title page

• Summary (No copy and paste!)

• Introduction (explain the main question, why the question is important, a short literature review

related to the main question, and what makes your research distinct from literature.)

• Data and descriptive statistics (introduce the data and describe the main variables numerically

and graphically. This part in your paper should be more than regular published papers, because

a big part of the course is about working with data)

• Empirical analysis (explain the method, show the regression results, and explain them. I expect

this part to contain some graphical presentation of results before getting into regressions. Some

published papers do not have the graphical presentation of results, but your report should have

this part. In the regression part, one table is enough, although it should contain more than one

regression.)

• Concluding remarks (explain the main shortcomings of your study, and offer some suggestions

to expand it)

• References (You don’t have to use all the references that the original paper uses.)

• Data appendix (explain what changes you make in the original data to create the data used in

your research paper)

Most published papers have complicated models and empirical analysis. I expect you to “simplify” the

analysis, such that you have a regression analysis of the type we cover in class (as if you want to use the

paper to teach the first course in econometrics!). To do so, you must simplify the data and prepare it for

simple regression analyses. This simplification may include keeping only the variables you will work on

or working with part of the data.

Proposal:

I expect you to choose your paper and have some primary analysis on data and the theory behind the

paper. You must upload the paper. You also must upload one page (doc file) with the following

information:

• Full information about the paper: title, author(s), and full reference.

• The summary (just copy and paste!)

• The main variable of interest with descriptive statistic and a histogram

• The main explanatory variable with descriptive statistic and a histogram.

Almost-final draft

In this draft, you should have most of the components of the paper. I will provide comments on your

almost-final version and expect the comments to be applied.

Final draft:

The data work should be YOUR codes. You may get help from the codes published by journals, but you

should write your own codes. The main rule is: DO NOT USE THE CODE YOU DON’T KNOW. It means no

copy-pasting the codes.

The regression results and the graphs you put in your paper should be the results of your codes. Do not

copy-paste any graph, table, or number from the published paper into your paper. Your tables should

NOT be direct copy and paste of regressions from Stata. You can generate the tables in Word, or use

Stata packages that generate professional-looking tables.

Remember, I am not looking for the exact replication of the results. I am looking for evidence that you

can use the data to generate regression results and graphs and present your results in a professional

way.

I will check the log file very carefully. The results presented in your paper must match with the log file

results.

There is a new journal, International Journal for Re-Views in Empirical

Economics (https://www.iree.eu/) that publishes replications of

published papers. I suggest you look at the papers and their reviews.

You may set you goal to publish your paper in this journal.

Appendix 1:

One of the goals of this project is to be familiar with the concept of “replicability.” The following

statement from Journal of Applied Econometrics describes the narrow and wide meaning of replication.

If you choose to work on a published paper, you will take the first steps of replicating the results of the

paper.

Replicability is an important part of every science, although what is meant by replication varies quite widely across

different disciplines. At JAE we already require authors to provide their data sets and any specialized computer

programs as a precondition for publication, with the aim of facilitating the replication of results that we publish. We are

now proposing to take the next natural step of providing an outlet and opportunity for researchers to report on

successful as well as unsuccessful replications. We also hope that this will encourage students and teachers of

applied econometrics to replicate the published work in the classroom.

There are two aspects to replication of results published in JAE:

• Replication in a narrow sense: This would involve checking the submitted data against the primary sources

(when applicable) for consistency and accuracy, checking the validity of computations either directly or by

carrying out the estimation (including the computation of standard errors) using other computer packages.

• Replication in a wide sense: This assumes that replication in the narrow sense has been successful, but asks

if the substantive empirical finding of the paper can be replicated using data from other periods, countries,

regions, or other entities as appropriate. Replicators are required to submit their output, preferably using

different software from that used by the original article, as well as a short write up of their results. In cases

where the results are not replicable, the authors will be given the opportunity to review the submission.

Appendix 2:

Following is the list of “some” journals with such a requirement, just to start with.

• American Economic Journal: Applied Economics

• American Economic Journal: Economic Policy

• Journal of Economic Perspective

• World Development

• The World Bank Economic Review

• Journal of Development Economics

• Journal of Applied Econometrics

• The Review of Economics and Statistics

学霸联盟

Master of Professional Studies in Applied Economics

ECON 644: Empirical Analysis II (Introduction to Economic Models)

Term Project Instruction

1

This short instruction provides some basic rules for the term project. I will explain the goal in class and

revise this document based on questions you ask about the project. So please stop by and ask questions!

As stated in the program’s website, our program intends to train “professionals who can analyze and

interpret sophisticated economic data and intelligently apply economic theory.” One way to practice

such analyses is to replicate a research and write a short version of a published paper.

The two Appendices explain the concept of replicability and introduce some journals that publish data

sets.

Your final draft should have all the components of a standard research paper. The structure and the

format of the paper should be similar to working papers or published papers.

The components of a standard paper ae:

• Title page

• Summary (No copy and paste!)

• Introduction (explain the main question, why the question is important, a short literature review

related to the main question, and what makes your research distinct from literature.)

• Data and descriptive statistics (introduce the data and describe the main variables numerically

and graphically. This part in your paper should be more than regular published papers, because

a big part of the course is about working with data)

• Empirical analysis (explain the method, show the regression results, and explain them. I expect

this part to contain some graphical presentation of results before getting into regressions. Some

published papers do not have the graphical presentation of results, but your report should have

this part. In the regression part, one table is enough, although it should contain more than one

regression.)

• Concluding remarks (explain the main shortcomings of your study, and offer some suggestions

to expand it)

• References (You don’t have to use all the references that the original paper uses.)

• Data appendix (explain what changes you make in the original data to create the data used in

your research paper)

Most published papers have complicated models and empirical analysis. I expect you to “simplify” the

analysis, such that you have a regression analysis of the type we cover in class (as if you want to use the

paper to teach the first course in econometrics!). To do so, you must simplify the data and prepare it for

simple regression analyses. This simplification may include keeping only the variables you will work on

or working with part of the data.

Proposal:

I expect you to choose your paper and have some primary analysis on data and the theory behind the

paper. You must upload the paper. You also must upload one page (doc file) with the following

information:

• Full information about the paper: title, author(s), and full reference.

• The summary (just copy and paste!)

• The main variable of interest with descriptive statistic and a histogram

• The main explanatory variable with descriptive statistic and a histogram.

Almost-final draft

In this draft, you should have most of the components of the paper. I will provide comments on your

almost-final version and expect the comments to be applied.

Final draft:

The data work should be YOUR codes. You may get help from the codes published by journals, but you

should write your own codes. The main rule is: DO NOT USE THE CODE YOU DON’T KNOW. It means no

copy-pasting the codes.

The regression results and the graphs you put in your paper should be the results of your codes. Do not

copy-paste any graph, table, or number from the published paper into your paper. Your tables should

NOT be direct copy and paste of regressions from Stata. You can generate the tables in Word, or use

Stata packages that generate professional-looking tables.

Remember, I am not looking for the exact replication of the results. I am looking for evidence that you

can use the data to generate regression results and graphs and present your results in a professional

way.

I will check the log file very carefully. The results presented in your paper must match with the log file

results.

There is a new journal, International Journal for Re-Views in Empirical

Economics (https://www.iree.eu/) that publishes replications of

published papers. I suggest you look at the papers and their reviews.

You may set you goal to publish your paper in this journal.

Appendix 1:

One of the goals of this project is to be familiar with the concept of “replicability.” The following

statement from Journal of Applied Econometrics describes the narrow and wide meaning of replication.

If you choose to work on a published paper, you will take the first steps of replicating the results of the

paper.

Replicability is an important part of every science, although what is meant by replication varies quite widely across

different disciplines. At JAE we already require authors to provide their data sets and any specialized computer

programs as a precondition for publication, with the aim of facilitating the replication of results that we publish. We are

now proposing to take the next natural step of providing an outlet and opportunity for researchers to report on

successful as well as unsuccessful replications. We also hope that this will encourage students and teachers of

applied econometrics to replicate the published work in the classroom.

There are two aspects to replication of results published in JAE:

• Replication in a narrow sense: This would involve checking the submitted data against the primary sources

(when applicable) for consistency and accuracy, checking the validity of computations either directly or by

carrying out the estimation (including the computation of standard errors) using other computer packages.

• Replication in a wide sense: This assumes that replication in the narrow sense has been successful, but asks

if the substantive empirical finding of the paper can be replicated using data from other periods, countries,

regions, or other entities as appropriate. Replicators are required to submit their output, preferably using

different software from that used by the original article, as well as a short write up of their results. In cases

where the results are not replicable, the authors will be given the opportunity to review the submission.

Appendix 2:

Following is the list of “some” journals with such a requirement, just to start with.

• American Economic Journal: Applied Economics

• American Economic Journal: Economic Policy

• Journal of Economic Perspective

• World Development

• The World Bank Economic Review

• Journal of Development Economics

• Journal of Applied Econometrics

• The Review of Economics and Statistics

学霸联盟