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The International Income Distribution Data Set (I2D2)

The International Income Distribution Data Set (I2D2). June 2013. What?. The I2D2 is a global harmonized household survey database. A basic set of harmonized variables that are comparable across country/time. 1 Stata data file per survey, at the individual member level.

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The International Income Distribution Data Set (I2D2)

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  1. The International Income Distribution Data Set (I2D2) June 2013

  2. What? • The I2D2 is a global harmonized household survey database. • A basic set of harmonized variables that are comparable across country/time. 1 Stata data file per survey, at the individual member level. • The I2D2 started with 2006 WDR on Equity. It has since grown, and been used in subsequent WDRs and other flagships. • Not intended to replace original data sets for research focused on national (or even regional, in some cases) cases.

  3. Content and Coverage • The I2D2 database includes 5 “categories” of variables: • HH level: basic attributes, consumption/income aggregate. • Consumption/income aggregates are taken as provided. • Individual level (HH members): demographics, education, labor force (subject to age coverage of the survey). • The labor force variables were expanded for the WDR2013 on Jobs. • The I2D2 database currently includes 600 surveys for 120 countries.

  4. How? • We get raw/original and, when available, standardized files from the regional survey data teams. • In some cases, we go to country economists or NSO websites/teams to get the data. • The I2D2 is not a WB facility for storing unit-record Household Survey data from NSOs (despite collecting such data for harmonization).

  5. Access • Currently, available in the WB. Soon to be posted on the DECDG micro data library. • But what about people outside the WB and those in the WB who don’t have/know Stata? • 2 possible avenues: • Tableau dashboard for basic statistics • 2. ODAT (see CLSP under www.worldbank.org/lsms) for regression analysis

  6. Forward • Pincer strategy: advance on several fronts simultaneously: • Identify, collect, and add surveys • Clean the database • Get in the micro data library (thanks Olivier!) • Get online (that is going slowly) • Secure funding!

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