Llewelyn Hughes and Austin Long. 2014/5. “Is There An Oil Weapon? Security Implications of Changes in the Structure of the International Oil Market.” International Security. 39 no. 3: 152-189. Supporting data available in Excel format here.

Llewelyn Hughes and Phillip Y. Lipscy. 2013. “The Politics of Energy” Annual Review of Political Science 16: 449-469.” Supporting data for journal article count available in Excel format here.

Llewelyn Hughes. 2012. “Climate Converts: Institutional Redeployment and Public Investment in Energy and Environment in Japan.” Journal of East Asian Studies 12, no.1: 89-118.  Supporting data is available in Excel format here.