“…Official data on voting for parties or candidates are only released in aggregate form for geographical areas, to protect the privacy of individual voters (and because, usually, information on an individual's specific vote is not accessible). These aggregated data can also be matched with other datasets to analyze the connection with other features: for example, data on vote for parties at the county level in Poland (380 counties as of December 2023) is matched with administrative information on the number of emigrants by county to study the effect of emigration rates on voting for right-wing parties (Giesing et al, 2023).…”