This paper shows that optimal policy and consistent policy outcomes require the use of control-theory and game-theory solution techniques. While optimal policy and consistent policy often produce different outcomes even in a one-period model, we analyze consistent policy and its outcome in a...

We use the two-country model of the euro area developed by Quint and Rabanal (2014) to study policymaking in the European Monetary Union (EMU). In particular, we focus on strategic interactions: 1) between monetary policy and a common macroprudential authority, and; 2) between an EMU-level...

We explore the interaction between central bank digital currencies and cryptocurrencies using a game-theoretic model. The solution of this model is characterized by a multiplicity of equilibria, delimited by the regulatory capability of the central bank and its interaction with the financial...

This paper considers an open-loop Nash game between independent monetary and fiscal authorities which seek to achieve conflicting objectives. The monetary authority is concerned solely with achieving a desired rate of inflation. The fiscal authority has multiple objectives defined by specific...

We implement a repeated version of the Barro-Gordon monetary policy game in the laboratory and ask whether reputation serves as a substitute for commitment, enabling the central bank to achieve the efficient Ramsey equilibrium and avoid the inefficient, time-inconsistent one-shot Nash...

We study the general problem of information design for a policymaker—a central bank—that communicates its private information (the ``state") to the public. We show that it is optimal for the policymaker to partition the state space into a finite number of ``clusters” and to communicate to...

It is well known from the analysis of monetary policy coordination of two countries that coordination often Pareto-dominates the outcome of the non-cooperative game. Hence both countries will have an incentive to form a union when it is certain that the other country will also join. However, in...

Nordhaus's theory of the "destructive game" (1994) is a central analysis of the policy mix. His theory showed that a lack of cooperation between the central bank and the fiscal authorities would result in the budget deficit being higher and the inflation rate lower than either of the authorities...

This study examines monetary policy and central bank communication when a monetary instrument signals the central bank's private information. A novel feature is that the central bank ex ante determines how much information it acquires and how much of this information it releases to the public....

This paper revisits the argument that the stabilisation bias that arises under discretionary monetary policy can be reduced if policy is delegated to a policymaker with redesigned objectives. We study four delegation schemes: price level targeting, interest rate smoothing, speed limits and...