We present a model of transnational terrorism where two countries, home and foreign, face a terrorist threat based in the foreign country. The home country chooses how much to invest in defending itself or in reducing terrorist resources either indirectly by subsidising the foreign country or by...

We show that price level stabilization is not optimal in an economy where agents have incomplete knowledge about the policy implemented and try to learn it. A systematically more accommodative policy than what agents expect generates short term gains without triggering an abrupt loss of...

We model the diffusion of two types of information through a population under the assumption that communication time is limited. When a meeting between individuals occurs, at most one information can be communicated. Preferences over information types divide the population into two groups, and...

Many studies suggest that research productivity falls after tenure is granted. We have however limited choice-theoretic understanding of why this should occur. With some simplifying assumptions, we rationalize this as follows. Scholars are assumed to be “specialistsâ€: their research...

The international macroeconomic policy trilemma suggests that de- spite the appeal of exchange rate stability, financial account openness and monetary sovereignty, these cannot be achieved simultaneously. Us- ing elements of Euclidean geometry, this paper proposes a new method for testing the...

Despite the modern origins of endogenous growth theory, we argue that the ‘Idea for a Universal History with a Cosmopolitan Aim’ written by Immanuel Kant in 1784 provides an early and coherent example of such a theory. Kant’s endogenous growth mechanism is driven by the...

Bayesian estimation is employed to investigate whether deep as opposed to superficial habit improves the fit of a dynamic stochastic general equilibrium model. If the stock of superficial habit features the additional persistence typical of deep habit, the two specifications are virtually as...

Has the global economic crisis resulted in countries shifting their exchange rate regimes and, if so, in what way? Focusing on the relevant period of 2008-12, and using the IMF’s Annual Report on Exchange Arrangements and Exchange Restrictions (AREAER) classification of exchange rate...

Traditional macroeconomic learning algorithms are misspecified when all agents are learning simultaneously. In this paper, we produce a number of learning algorithms that do not share this failing, and show that this enables them to learn almost any solution, for any parameters, implying...

This paper contributes to an emerging literature that brings the constant elasticity of substitution (CES) specification of the production function into the analysis of business cycle fluctuations. Using US data, we estimate by Bayesian methods a medium-sized DSGE model with a CES rather than...