Abstract

The paper presents the hitherto unpublished correspondence between Piero Sraffa and Renato Zangheri in the late 1960s. The letters have a twofold interest: first, because the topics examined are of relevant significance, from both the political and the analytical viewpoints. Secondly, because they offer a good example of Sraffa's peculiar reluctance to explain his own theoretical approach. In the Appendix, a detailed letter to President Luigi Einaudi on the «Physiocratie» is published (together with his response), for the first time in the original Italian.