Should a subset of member states of a federation be allowed to form a sub-union on some policy issue? When centralization is not politically feasible, allowing an enhanced cooperation agreement among a subset of countries permits the latter to gain benefits which would otherwise be lost....

We study lobbying behavior by firms in a two-region economy, with either centralized or decentralized provision of profit-enhancing local public goods. Firms compete either in the market, lobbying for public good provision once entered in a market, or for the market, lobbying to gain ccess to...

A 1999 reform allowed Italian Mayors to partially substitute a more accountable source of tax revenue (the property tax) with a less transparent one (a surcharge on the personal income tax). Theoretical analysis suggests this should give incompetent Mayors a less costly way to hide themselves,...