To project Greece’s population, we pulled data from the Hellenic Statistical Authority. Using historical trends, and assuming the current activity prevails, we were able to establish a reasonable expectation for predicting future population values.

We used two models for these population projections: The Monte Carlo and the Autoregression Integrated Moving Average (ARIMA) models. In each of Greece’s metro areas, we ran multiple configurations of each of the two models to find out which model (and which configuration within that model) was most accurate for that metro.

Greece’s metropolitan areas are hand-curated based on the country’s NUTS3 regional units. The Nomenclature of Territorial Units for Statistics (NUTS) geographical division is constructed by Eurostat. Note that the metros were also adjusted to reflect the national administrative reform of 2011, a reform during which the prefectures of Greece were re-evaluated and formed the NUTS 3 regional units.

We pulled Greece’s labor market information (LMI) from three sources:

When creating the occupation supply projections, we took the expected population growth rate from the models mentioned above and applied that same growth rate across the LMI in each Greek metropolitan area. Once we had the projections, we mapped the International Standard Classification of Occupations (ISCO-08) to Global Occupations.