We examine the impact of ambiguity on economic behaviour. We present a relatively non-technical account of ambiguity and show how it may be applied in economics. Optimistic and pessimistic responses to ambiguity are formally modelled. We show that pessimism has the effect of increasing...

We examine the impact of ambiguity on economic behaviour. We present a relatively non-technical account of ambiguity and show how it may be applied in economics. Optimistic and pessimistic responses to ambiguity are formally modelled. We show that pessimism has the effect of increasing...

The paper reconsiders the theory of fiscal federalism in a framework inspired by property-rights theory. We set up a two-period model where on a first stage a region in a federation can expend value-enhancing investments into a public project. The project can be implemented on a second stage,...

The paper reconsiders the theory of fiscal federalism in a framework inspired by property-rights theory. We set up a two-period model where on a first stage a region in a federation can expend value-enhancing investments into a public project. The project can be implemented on a second stage,...

Veto institutions are often dominated by government opponents with rival electoral and policy interests (e.g. \divided government"). I investigate the tradeoff between policy control and policy blockade when both the government and the veto party may cater to opposing special interests. The...

We study relative performance of stochastic and deterministic mechanisms in a principal-agent model with hidden information and no monetary transfers. We present an example in which stochastic mechanisms perform strictly better than deterministic ones and can implement any outcome arbitrarily...

The paper studies the relative merits of direct and representative legislation in a setting where voters are uncertain both with respect to the likely consequences of different policies and with respect to the political preferences of their fellow citizens. Under representative legislation, the...

The paper studies the relative merits of direct and representative legislation in a setting where voters are uncertain both with respect to the likely consequences of different policies and with respect to the political preferences of their fellow citizens. Under representative legislation, the...

Veto institutions are often dominated by government opponents with rival electoral and policy interests (e.g. \divided government"). I investigate the tradeoff between policy control and policy blockade when both the government and the veto party may cater to opposing special interests. The...

We develop a model of assignment games with pairwise-identity-dependent externalities. A concept of conjectural equilibrium is proposed, and the universal conjecture is shown to be the necessary and sufficient condition for the general existence of equilibrium. We then apply the solution concept...