Announcement

Collapse
No announcement yet.
X
  • Filter
  • Time
  • Show
Clear All
new posts

  • Baseline Gravity Equation Estimation

    Hi, I am currently working on my thesis. I have a dataset of approximetely 120 reporting and partner countries fråm the year 1996 to 2017. I find my results rather peculiar and was wondering if I could get some input. I am running a baseline equation that is

    Code:
    reg lnexport lndist contig comlang_off comcol fta_wto EUtrade Brexit EUBrexit export_* import_* year_*, robust cluster(distw)
    Click image for larger version

Name:	Statalist.PNG
Views:	1
Size:	11.8 KB
ID:	1491371


    Now, i find the distance abnormaly high? Shouldnt it be around -1? I also find it peculiar that "EUtrade", which is if both the reporting and partner country is an EU country, is negative and significantly negative. Is there something i can change in my code to make it better?

    I know OLS isn't perfect for my dataset. I will also run a PPML. When I look at other papers and they run an OLS, the lndist seems better.

    Glad to get some input.

    Sincerely,
    John

  • #2
    Update.

    Running a PPML produce reasonable estimations. Should I assume that the OLS is inconsistent and biased given the data?

    Click image for larger version

Name:	Skärmklipp.PNG
Views:	1
Size:	11.8 KB
ID:	1491393
    Attached Files

    Comment

    Working...
    X