The dataset by Kristian Gleditsch provides estimates of trade flows between independent states (1948-2000) and GDP per capita of independent states (1950-2011). Version 6. In order to fill in gaps in the Penn World Table's mark 5.6 and 6.2 data (see: Heston, Summers \& Aten), Gleditsch has imputed missing data by using an alternative source of data (the CIA World Fact Book), and through extrapolation beyond available time-series.

**Last updated by source:** 2014-09-09

Dataset type: |
Time-Series |

Dataset level: |
Country |

(K. S. Gleditsch,
2002)

(K. Gleditsch & Ward,
1999)

• Gleditsch, K. S. (2002). Expanded trade and
GDP data (version 6.0). *Journal of Conflict
Resolution*, *46*(5), 712–724.

• Gleditsch, K., & Ward, M. D. (1999).
Interstate system membership: A revised list of the independent states
since 1816. *International Interactions*, *25*,
393–413.

GDP per capita (Current prices).

More about this variableThis amounts to the total export of a country, in millions of current year US dollars, estimated as the sum of all dyadic export figures to that country using the imputation technique described above.

More about this variableReal GDP (2005). This is Gleditsch's estimate of GDP per Capita in US dollars at current year international prices.

More about this variableThis amounts to the total import of a country, in millions of current year US dollars, estimated as the sum of all dyadic import figures to that country using the imputation technique described above.

More about this variableSize of the population in the years 1000's.

More about this variableThis is the estimate of real GDP per Capita in constant US dollars at base year 2000, based on the imputation technique described above.

More about this variableThis amounts to the sum of import and export of a country, in millions of current year US dollars, estimated as the sum of all dyadic import and export figures of that country using the imputation technique described above.

More about this variable