Poland faces one of the most rapidly ageing population in Europe. The old age dependency ratio is expected to triple until 2060. Against this background, our paper examines the sustainability of Polish public finances and its isolated subsystems. We consider the profound recent reforms including...

This paper develops a methodology for estimating the parameters of dynamic opinion or expectation formation processes with social interactions. We study a simple stochastic framework of a collective process of opinion formation by a group of agents who face a binary decision problem. The...