The constructive contributions of the Cambridge school to economic theory have been subject to criticisms from Marxist economists. This study is an attempt to identify, clarify and assess these criticisms. It is developed in three stages. First, the various Marxist criticisms of the Cambridge school are identified, discussed and classified. Second, to clarify the foundations of these criticisms and to allow subsequent comparison with work from the Cambridge school, some aspects of the Marxist literature on technology and technical change are examined. Third, the Cambridge school is subjected to scrutiny. Attention is given to both a methodological division within the Cambridge school and work by its members on technology and technical chang...