This paper investigates the welfare gains due to Spanish imports of new varieties over the period 1988-2006 using the methodology proposed by Feenstra (1994) and Broda and Weinstein (2006). After calculating the elasticities of substitution of a large number of Spanish imported products, we...

This paper analyzes whether complexity, measured by the number of skilled tasks that are performed in production, explains countries commodity trade structure. We modify the Romalis (<link/>) model to incorporate advantage differences in complexity across commodities together with differences in the...

Recent empirical research highlights that differences in trade flows across countries, products and years are governed by two margins: the intensive margin and the extensive margin. The analysis of the relative contribution of each margin is very important to determine which policies can be more...

The existence of a large border effect is considered as one of the main puzzles of international macroeconomics. We show that the border effect is, to a large extent, an artefact of geographic concentration. In order to do so we combine international flows with intranational flows data...

To estimate correctly the effect of variable trade costs on firms’ exports, the gravity equation should control for the number of firms that participate in foreign markets. Due to the absence of these data, previous studies control for this omitted variable using econometric strategies that...

In this paper we use network-analysis tools to identify communities in the web of exporters' destinations. Next we use our network-based community measure as predictor of additional countries chosen by firms expanding their export destination portfolio. We defend that our network-based community...

The literature shows that new exporters have small levels of exports relative to regular exporters upon entry, and, if they survive, they have very high export growth rates between the entry year and the next year. However, these empirical facts might be biased by the partial year effect: firms...

Durante las dos últimas décadas los países de renta media han ganado cuota de mercado en las exportaciones mundiales. Sin embargo, esta tendencia esconde grandes diferencias entre países. El objetivo de este trabajo es explicar estas diferencias. Para ello descomponemos el crecimiento de las...

Previous studies have shown that, not only countries, but also regions have a preference to trade within their administrative borders. Using unique trade flows data, we also find a large home bias in Spanish intranational trade. However, we show that this home bias tends to disappear once we...