Since the publication of their 2021 "Blue Book", the UK's Office for National Statistics started to measure real GDP in the national accounts using double deflation. This methodological update follows the premise that "double deflation is internationally accepted as the best approach to...

We revisit the association between trade and GDP co-movement for 135 countries from 1970 to 2009. Guided by a simple theory, we introduce two notions of trade linkages: (i) the usual direct bilateral trade index and (ii) new indexes of common exposure to third countries capturing the role of...

This paper revisits the relationship between trade and cross-country GDP correlation for 134 countries from 1970 to 2009. We introduce two notions of trade linkages: (i) direct bilateral trade index and (ii) common exposure to "third" countries capturing the role of trade networks . Both are...

We revisit the association between trade and GDP comovement for 135 countries from 1970 to 2009. Guided by a simple theory, we introduce two notions of trade linkages: (i) the usual direct bilateral trade index and (ii) new indexes of common exposure to third countries capturing the role of...

Growth and imports are correlated across countries, but the mechanisms underlying this relationship are not well understood. I develop a multi-country model in which imports and growth are endogenous variables connected by technological innovations and their international diffusion through...