Our Blogger Emeritus Duncan Green on a new guide that draws on work in the US to influence policy on tobacco and health to identify five roles for research in policy change.

Last week’s post about academics struggling to design their research for impact certainly got a reaction. Maybe not a twitter storm, but at least a bit of a squall. So it’s time to summarize the debate and reflect a bit. The post annoyed some people in the ‘research for impact’ community, because it was basically saying nothing much has changed.

This review appears in the Evidence and Policy journal, where it is now available free online (after I protested about the scandalous, rip-off $30 they were charging). Or you can just read it here. Note to self: in future, I will not write anything for journals that are not open access (thanks to Owen Barder for that suggestion). In recent years, the public