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...

We use a simple financial friction in an economy with high degree of liability dollarization to show that the negative balance-sheet effect of an exchange rate depreciation may be observable only if the magnitude of the depreciation is large enough. This result justifies the difficulty to find...

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...

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...

In this paper we summarize the results of a broad exploratory empirical analysis where we relate the level of financial development with the effectiveness of monetary policy. The analysis is based on a panel of countries for whom we calculate measures both of financial development and of...

We propose tests of the null of spurious relationship against the alternative of fractional cointegration among the components of a vector of fractionally integrated time series. Our test statistics have an asymptotic chi-square distribution under the null and rely on GLS-type of corrections...

This paper searches for evidence on the additional difficulty the parties have in contracting for the transfer of know-how relative to the transfer of patented technology. There is empirical evidence, drawn from a sample of contracts for the acquisition of technology by Spanish firms in 1991,...