Marx thought a lot about capitalism

In the first three chapters of Capital Vol 1 Marx throws down his founding priciples of capitalism under the premis that labor time is the ubiquitous unit of measure. He does conceed that the quality of labor time, and hence its ability to be productive, is influenced by other factors.

The value of a commodity would therefore remain constant if the labour-time required for its production also remained constant. But the latter changes with every variation in the productiveness of labour. This productiveness is determined by various circumstances, amongst others, by the average amoun of skill of the workmen, the state of science, and the degree of its practical application, the social organisation of production, the extent and capabilities of the means of production, and by physical conditions

Capital Vol 1- Karl Marx

Think about this list. 1.The skill of the workmen 2. State of Sciene 3. degree of practical application 4. social organization of production 5. capabilities of means of production 6. Physical condition.

Couldn’t this list be 1. Quality of public education available to workforce 2. Technology 3. Vo-tech adaptation of technology 4. Governance of plant 5. Degree of logistical support including maintenance and transportation 6. The environment.

No matter what specifics came to Marx’s mind as he wrote this list- the list appears to point to what we now call public goods. The productivity of the labor hours invested depended on the quality of the public goods inplay at the plant.

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David Harvey has an excellent YouTube series on Capital