This paper examines the properties of the optimal nonlinear income tax when preferences are quasilinear in leisure and heterogeneous. Individuals differ in their ability and in their preferences for leisure. The government seeks to redistribute income. It can perfectly observe the level of...

The European Union consists of a wide variety of welfare states with social insurance schemes ranging from those providing earnings related benefits (Bismarckian) to fat rate benefits (Beveridgean) systems. The conventional wisdom is that with factor mobility poor people have incentives to move...

The French Wars (1793-1815) exerted unprecedented pressures on Britain's fiscal and monetary policy settings. Policy makers had to constantly adjust the policy mix as events unfolded. This meant implementing monetary and fiscal policy innovations, such as the suspension of the gold standard and...

In a financial market where agents trade for short-term profit and where news can increase the uncertainty of the public belief, there are strategic complementarities in the acquisition of private information and, if the cost of information is sufficiently small, a continuum of equilibrium...