This paper studies the main effects of the short sales ban implemented in August 2011 in the Spanish stock market along two dimensions: financial stability and market performance. Regarding the first, we show that short positions were a significant determinant of the probability of default of...

This paper presents a small-sample study of the threeequation- three variable New-Keynesian macro model. While the point estimates imply that the Fed has been stabilizing inflation fluctuations since 1980, our econometric analysis suggests considerable uncertainty regarding the stance of the Fed...

This paper has a twofold purpose. In the context of a structural macroeconomic model, it derives estimates of the Federal Reserve's preference parameters in its pre and post - 1980 loss function. We show that there was an economically, but not statistically, significant change in the preferences...

This paper deals with the modelling of the global and northern and southern hemispheric anomaly temperature time series using a novel technique based on segmented trends and fractional integration. We use a procedure that permits us to estimate linear time trends and orders of integration at...

How heterogeneous are countries with respect to economic freedom? This is an interesting empirical question since, if we can discover different groups of countries according to their economic freedom indicators, we will be able to identify which steps are required to foster convenient...

Previous research has found that the response of hours worked to a technology shock crucially depends on whether the variable hours is assumed to be an I(0) or an I(1) variable ex-ante. In this paper we employ a multivariate fractionally integrated model which allows us to determine...

This article is concerned with the dynamic behaviour of UK unemployment. However, instead of using traditional approaches based on I(0) stationary or I(1) (integrated and/or cointegrated) models, we use the fractional integration framework. In doing so, we allow for a more careful study of the...

Multivariate tests of fractionally integrated hypotheses are proposed in this article. They are a natural generalization of the univariate tests of Robinson (1994) for testing unit roots and other nonstationary hypotheses. The functional forms of the tests, based on the score principle are...

This paper considers situations in which a set of agents has to decide whether to carry out a given public project or its alternative when agents hold private information. I propose the use of the individually-rational and budget-balanced multibidding mechanism according to which the game to be...

This paper introduces a method to build a classifier based on labeled and unlabeled data. We set up the EM algorithm steps for the particular case of the naive Bayes approach and show empirical work for the restricted web page database. Original contributions includes the application of the EM...