We study the demand for Swiss banknotes over the period from 1956 to 2015 and present stylized facts on different banknote denominations since the inception of the Swiss National Bank (SNB) in 1907. Employing the so-called seasonal method, we focus on the demand for banknotes used as a store of...

We represent the dynamic relation among variables in vector autoregressive (VAR) models as directed graphs. Based on these graphs, we identify so-called strongly connected components (SCCs). Using this graphical representation, we consider the problem of variable selection. We use the relations...

This paper develops a parsimonious model of individual exposure and of public health policy that can be used to study the evolution of an epidemic and the optimal use of lockdown policies and other non-pharmaceutical interventions. At the heart of individual exposure choices are the trade-offs...