Adding a new variable in the FRB/US data in EViews 11

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joshi27s
Posts: 14
Joined: Thu Jun 04, 2020 8:49 am

Adding a new variable in the FRB/US data in EViews 11

Postby joshi27s » Sat Jun 06, 2020 11:07 am

Hi

I am using the FRB/US package to model simulations. The "longbase.edb" database (contained in the FRB/US dataset) has data on several macroeconomic variables. But I don't think it has data on employment-to-population ratio. I imported this data from FRED from 1975 Q1 to 2020 Q1 in the workfile and called it "epop". called However, the range of other data for all the variables is from 1975 Q1 to 2030 Q4, how will I get the values for post- 2020Q1 time period? So far, I 've started working with data from 1975 Q1 to 2020 Q1 as I am trying to make simulations only for the years 2012-2013.

Furthermore, I am trying to run the program simulation example 4 from the "programs" folder in "frbus_package". Towards the end are the following lines of code which I don't understand :

Screen Shot 2020-06-06 at 5.58.34 PM.png
Screen Shot 2020-06-06 at 5.58.34 PM.png (10.65 KiB) Viewed 1972 times



What exactly does %sufsim = "_1" mean? This is relevant in the following :

Screen Shot 2020-06-06 at 6.01.22 PM.png
Screen Shot 2020-06-06 at 6.01.22 PM.png (12.11 KiB) Viewed 1972 times



In the line of code which says: series d_epop = epop{%sufsim} - epop , I was getting the following error message:

Screen Shot 2020-06-06 at 5.33.54 PM.png
Screen Shot 2020-06-06 at 5.33.54 PM.png (36.53 KiB) Viewed 1972 times


I would appreciate it if someone could help resolve the error.

EViews Matt
EViews Developer
Posts: 476
Joined: Thu Apr 25, 2013 7:48 pm

Re: Adding a new variable in the FRB/US data in EViews 11

Postby EViews Matt » Sun Jun 07, 2020 7:51 am

Hello,

Regarding future data, if you can't find someone else's forecast, you can always make your own. Many of the series bundled with the FRB/US model simply use the last known value for all future values.

Regarding the %sufsim = "_1" line, if you look at how that program variable is used in the model scenario procedure you'll see that it defines the scenario alias. When the model is subsequently solved, the solved endogenous variable series all have that suffix. The error message about epop_1 suggest you have not added epop to the model as an endogenous variable, thus epop_1 is never created.

joshi27s
Posts: 14
Joined: Thu Jun 04, 2020 8:49 am

Re: Adding a new variable in the FRB/US data in EViews 11

Postby joshi27s » Fri Jun 12, 2020 4:12 am

Thanks, Matt for the response.One last question:

In the line of which states:

series d_epop = epop{%sufsim} - epop

does it mean that we are differencing the actual values of "epop" from the simulated values of "epop"?

EViews Matt
EViews Developer
Posts: 476
Joined: Thu Apr 25, 2013 7:48 pm

Re: Adding a new variable in the FRB/US data in EViews 11

Postby EViews Matt » Fri Jun 12, 2020 9:39 am

That's correct.


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