ISIMIP3a GDP input data

This dataset contains national time series of gross domestic product (GDP) for the time period 1850-2021 to be used as input data for ISIMIP3a (www.isimip.org, Frieler et al. 2023). For the time period 1960–2021 data are based on the World Bank's World Development Indicator database (WDI, 2008) and converted into constant 2005 Int$PPP and US$MER using deflators and PPP conversion factors from WDI. For countries not covered in the WDI database, data from the MissingIslands dataset (Arujo et al., 2021). For the year 2021, data are derived from the IMF's World Economic Outlook short-term estimates of GDP per capita growth (International Monetary Fund, 2021) that comprise estimates of the growth impacts of the Covid-19 shock. For the years before 1960, the dataset is extended with the national annual GDP estimates provided for ISIMIP2a mostly based on the Maddison project (Maddison, 2016; Geiger, 2018).