We propose a conjugate and conditional conjugate Bayesian analysis of models of marginal independence with a bi-directed graph representation. We work with Markov equivalent directed acyclic graphs (DAGs) obtained using the same vertex set with the addition of some latent vertices when required....

Common wisdom about the effects of gas market liberalization in the EU claims that the fragmentation of gas supply in the downstream market can raise the price of gas imports, as the bargaining power of European firms in the upstream market would be weakened. We consider such a claim from the...

The recent financial crisis has stressed the need to understand financial systems as networks of interdependent countries, where crossborder financial linkages play the fundamental role. It has also been emphasized that the relevance of these networks relies on the representation of changes...

We study the international interbank market through a geometrical and a topological analysis of empirical data. The geometrical analysis of the time series of cross-country liabilities shows that the systematic information of the interbank international market is contained in a space of small...

This paper aims to apply the balance of payments constrained-growth model to explain Euro area growth performance in the last forty years and to discuss likely prospects for the future. After a formal reconsideration of the long-run and short-run arguments supporting the validity of the...

Twitter text data may be very useful to predict financial tangibles, such as share prices, as well as intangible assets, such as company reputation. While twitter data are becoming widely available to researchers, methods aimed at selecting which twitter data are reliable are, to our knowledge,...

This paper investigates the relationships between export price and income elasticities, average unit values (AUVs) and market shares for the top world food exporters in the time period 1992-2011 using a panel data framework. Emerging countries and Spain show a high price elasticity unlike other...

We investigate competitive, selection and reallocation effects in monopolistic competition trade models. We argue that departing from CES preferences in an otherwise standard Dixit-Stiglitz setup with additive preferences seems to involve implausible assumptions about consumer behavior and...

We examine the role of per capita income in closed and open economy models of monopolistic competition based on non-homothetic directly additive preferences a la Dixit-Stiglitz, as in Krugman (1979). In a closed economy with free entry income is always neutral on markups and firm size. In a...

We study empirically the role of air service in boosting exports. We focus on the link between non-stop flights and outgoing trade of the Italian manufacturing sector in Europe using a panel of 12,000 half- yearly observations ranging from 1998 to 2010. The analysis shows that the supply of...