In a bilateral oligopoly, with large traders, represented as atoms, and small traders, represented by an atomless part, when is there a non-empty intersection between the sets of Walras and Cournot-Nash allocations? Using a two commodity version of the Shapley window model, we show that a...

Some studies argue that the Fed reacts to financial market developments. Using data covering the period 1985:Q1 - 2008:Q4 and employing an augmented Taylor rule specification, we re-examine that conjecture. We find that evidence in favour of such a reaction is largely driven by the Fed’s...

Using the integer programming approach introduced by Sethura- man, Teo, and Vohra (2003), we extend the analysis of the preference domains containing an inseparable ordered pair, initiated by Kalai and Ritz (1978). We show that these domains admit not only Ar- rovian social welfare functions...

We study the asymmetric and dynamic dependence between financial assets and demonstrate, from the perspective of risk management, the economic significance of dynamic copula models. First, we construct stock and currency portfolios sorted on different characteristics (ex ante beta, coskewness,...

In this paper, we extend the non-cooperative analysis of oligopoly to exchange economies with innitely many commodities by using strategic market games. This setting can be in- terpreted as a model of oligopoly with dierentiated commodities by using the Hotelling line. We prove the existence of...

We analyse the role of time-variation in coe¢ cients and other sources of un- certainty in exchange rate forecasting regressions. Our techniques incorporate the notion that the relevant set of predictors and their corresponding weights, change over time. We Önd that predictive models which...

In the line opened by Kalai and Muller (1977), we explore new con- ditions on preference domains which make it possible to avoid Arrow's impossibility result. In our main theorem, we provide a complete char- acterization of the domains admitting nondictatorial Arrovian social welfare functions...

Using a panel of 38 economies, over the period 2001 to 2010, we analyse the link between diversification in equity portfolios and different facets of education. We find that traditionally used measures of education play an important role in reducing equity home bias. After separating countries...