SWIID Frequently Asked Questions

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How to . . .

Wait, how can I download the data again?

First, click on this link. Scroll down past the description until you see a list of files. The dataset is a .zip file, the first one labeled “2.…

How can I use the SWIID data to make my own graphs?

The SWIID download contains files pre-formatted for use with the tools for analyzing multiply-imputed data and other data measured with uncertainty…

I’m using an older version of Stata, and it won’t open the file. How can I use the SWIID?

Stata 13 introduced a new file format which older versions of Stata can’t open. Fortunately, there’s an easy fix: the use13 command. In the command…

How can I merge my other data into the SWIID using country codes?

First, add whatever country codes are needed to the SWIID data: there are routines for both Stata (kountry; type findit kountry in Stata’s command…

How can I use the SWIID data with Stata’s time-series operators?

To use Stata’s time-series operators (l. , f. , d. , etc.), you must first declare the time and panel variables using tsset, but the SWIID is already …

I imported the swiid_summary.csv file, and the data for some countries seem to be given in different units; for example, in one country, gini_disp is 313 and gini_mkt is 33. How can I interpret these data?

The issue here is that the swiid_summary.csv file is saved using RFC 4180 csv conventions, that is, with a dot marking the decimal and a comma…

The SWIID Data

The estimates for Ruritania, among others, have changed since the previous version. Why is that?

There are three reasons why estimates change from one version of the SWIID to the next. The first reason is revisions to the Luxembourg Income Study.…

How is Germany treated in the SWIID? Where’s East Germany?

As in the LIS, Germany is West Germany only before 1991 and (united) Germany from that point forward. The SWIID includes no estimates for East…

What about Russia and the rest of the former Soviet Union? Yugoslavia? Czechoslovakia? Pakistan? Sudan? Ethiopia? Why are there estimates for successor states before they actually existed?

For countries that have undergone partition, the SWIID estimates for a given year include all of the origin country’s then-current territories. This…

Why doesn’t the SWIID include estimates for redistribution for all countries and years?

Although the SWIID includes estimates of disposable income inequality and market income inequality for all of its country-year observations, it does…