The COVID-19 pandemic has had a huge impact both on the global economy and on everyday life in all countries all over the world. In this paper, we propose several possible machine learning approaches to forecasting new confirmed COVID-19 cases, including the LASSO regression, Gradient Boosted...

The latest National Population Census in Poland, like in many EU countries, was conducted in 2021. In Ukraine, during the entire period of independence, a national census was conducted only once, in 2001, while the following rounds kept being postponed. In 2019, a trial census was conducted in...

Current demographic changes require greater participation of people aged 50 or older in the labour market. Previous research shows that the chances of returning to employment decrease with the length of the unemployment period. In the case of older people who have not reached the statutory...

Kaliningrad Oblast was created as a war trophy and a symbol of Soviet victory over Nazi Germany in 1945/1946. For nearly seven decades, it played a strictly military role in Soviet and Russian foreign policy, mostly limited to its Baltic Sea surroundings. This changed when Vladimir Putin came...

Main description: Does the abrupt collapse of communist regimes in Eastern Europe arise only from errors in implementing the policy of state socialism, leaving the concept itself still a potentially valid one? Bartlomiej Kaminski argues to the contrary: state socialism is a fundamentally...