Bundled discounts by pairs of otherwise independent firms play an increasingly important role as a strategic tool in several industries. Given that prices of firms competing for the same consumers are strategic complements, one would expect their discounts levels also to be strategic...

This paper concerns optimal taxation and public goods in an economic federation with decentralized leadership, where one lower level government is the first mover also in the horizontal dimension. Under plausible assumptions, horizontal leadership reinforces the incentives created by...