EViews.com

You have to use more than one pair of countries, so that distance isn't the same for all observations.

You can't.

Distance is a constant in your data, so there's no way to find out what effect it has on trade.

The first thing to do is to be sure that your copy of EViews is uptodate.

You just have some syntax errors. x1_2 isn't x^2, and cos by itself doesn't mean anything. You might want to check the help system.

You need to decide on the significance level in advance, depending on how willing you are to reach the wrong decision. There is nothing in the data nor in EViews that can help you with that.

You don't need to set the significance. Run your estimate and look at the resulting test statistic. Then compare it to the critical value for your desired significance level, or look at the p-values which are reported.

That's very odd. You might post your workfile with the equation in it.
(Is your copy of EViews uptodate?)

First thing to check is that your version of EViews is fully uptodate.

That's certainly true. But why do you think that high standard errors are a problem? Sure, it would be nice if they were smaller. But unless you have prior information there isn't any way to get them smaller while still having unbiased coefficients.

Exactly what problem do you think multicollinearity causes?

Note that the EViews web sit lists a number of vendors who offer consulting services related to EViews.

Create a quarterly page in the workfile. Return to the weekly page, copy the series in the workfile window. Return to the quarterly page. Paste Special.

You're talking about 500 tables, each with about 1800 unique entries. That's close to a million numbers you want to generate. Out of curiousity, what are you going to do with a million numbers when you get them?

On occasion, people have asked for a way to get a correlogram as a "real graph." It's possible to get such a graph with the command ls y c ar(1) view/arma structure/correlogram and then ignoring the theoretical part. I wonder if it might be possible to let the ARMA structure view work even...

The adjusted data is in a new series, as shown in the dialog.