1. On Sraffa's and Wittgenstein's methodological similarities: from the rejection of inadequate types of causality to the comparison of different 'forms of life;R Arena;Sraffa and the Reconstruction of Economic Theory: Sraffa's Legacy: Interpretations and Historical Perspectives,2013
2. Order, process and morphology: Sraffa and Wittgenstein;R Arena;Cambridge Journal of Economics,2015
3. Open Economics
4. Piero Sraffa and the 'true' object of economics: The role of the unpublished manuscripts;S Blankenburg;Cambridge Journal of Economics,2012