This paper considers the problem of aggregation in the case of large linear dynamic panels, where each micro unit is potentially related to all other micro units, and where micro innovations are allowed to be cross sectionally dependent. Following Pesaran (2003), an optimal aggregate function is...

We use a new dataset on non-resource GDP to examine the impact of commodity price volatility on economic growth in a panel of up to 158 countries during the period 1970-2007. Our main finding is that commodity price volatility leads to a significant increase in non-resource GDP growth in...

This paper contributes to the GMM literature by introducing the idea of self-instrumenting target variables instead of searching for instruments that are uncorrelated with the errors, in cases where the correlation between the target variables and the errors can be derived. The advantage of the...