At the end of 2015, the Deutsche Bundesbank had issued a total net amount of just over €45 billion in €20 banknotes. In statistical terms, each resident living in Germany was therefore issued with around 30 banknotes of this denomination. Up until now, it was not clear how many of these...

This paper demonstrates that a pollution tax with a fixed cost component may lead, by itself, to segregation between clean and dirty firms without heterogeneous preferences or increasing returns. We construct a simple model with two locations and two industries (clean and dirty) where pollution...