Thursday, September 28, 2017

Marx and Capital: The Problem of Depreciation



One of the things that’s been bugging me about the Marxian value transformation into prices is the term of fixed capital that goes into prices.

It’s bugging me because the simplifying assumption is that this constant capital is thought to be used up in the process, and we know how much it was worth going in so that is easy to track.

The problem is that is a gross oversimplification, and I’m not sure if it is straight from Marx or if it is from Hunt’s editing. In accounting terms there is a way to track this sort of thing. If something is not automatically used up as supplies and will last a while, it is literally “capitalized”. This is done because of the matching principal where expenses need to go with income, and anything longer than a year shouldn’t be directly expensed, but the expense of the purchase applied over time. This shows how the machinery wears out. Then you have on your income statement the depreciation which is an expense but not a cash expense.

The complicating factor is that useful lives of capital equipment are based on convention. Your capital item may have an actual longer or shorter life than you plan for when you buy it. In account terms that’s something you can deal with down the road – write off my supercomputer if Moore’s law makes it obsolete or have a loom that is abnormally long-lasting so you’re getting production from it long after it has been fully depreciated. But in pricing terms, you need to know this beforehand, so that all the labor that went into the capital item is used up in your period however it is defined. I’m LTV until I die, but once you put the microscope on some of these things and start looking they are hard to quantify. I know capital is in itself controversial from Cambridge to the other Cambridge, but is there a place in Marx where he deals with such problems?

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