Cooking the Books 1 – No Marx without Adam Smith?
Next month is the 250th anniversary of the publication of Adam Smith’s The Wealth of Nations. In the run-up to this, the Economist (18 December) carried an article by its ‘senior economics writer’, Callum Williams, in which he suggested that Smith had been ‘misinterpreted and his influence overstated’.
His case was that Smith wasn’t the originator of the ideas he expressed, that he copied from others and was a bad writer, and that he also made mistakes:
‘In the “Wealth of Nations”, he argued for the “labour theory of value” (the idea that the amount of work that goes into a product determines its price, rather than how useful that product is). This theory distracted economists for decades and laid the groundwork for Marxism. Exploitation, in Marx’s view, arose from the difference between how much workers had laboured to create a good and what they were paid for producing it. Without Smith, there could have been no Marx’.
The last sentence is ridiculous. There were others before Smith who put forward the view that the exchange-value of a product of labour depended on the amount of labour required to produce it. In a footnote early on in the opening chapter of Capital, Marx’s quotes Benjamin Franklin as having pointed out in 1729 that:
‘Trade in general being nothing else but the exchange of labour for labour, the value of all things is … justly measured by labour’.
Prior to Capital, in A Contribution to the Critique of Political Economy (1859), Marx credited Franklin as the person ‘who for the first time deliberately and clearly … reduces exchange-value to labour-time.’
In a podcast on the same subject on 1 January, Williams attempted to refute the labour theory of value by saying that, on the contrary, ‘what determines the price of a good is … how much demand there is for that good and how much of that good is supplied by the market’. This differs from what he had written in his article that a product’s price is determined by ‘how useful that product is’. That argument is easy to refute —there are a lot of things that are more useful than gold or diamonds yet gold and diamonds have a higher price; which, clearly, must have something to do with the fact that it is more difficult (takes more work and time) to produce gold and diamonds than it does to produce the other, more useful products.
Supply and demand determine the short-term market price but, in the longer term, supply will only continue if the suppliers — profit-seeking capitalist firms — cover their costs and make a profit. In bringing about the longer-term price the play of market forces will take into account the labour-time required to produce the product from start to finish.
Not that Marx did argue that under capitalism products exchanged at their labour-time value. He was well aware that the pursuit of profits resulted in this happening only accidentally but that the prices at which products sold could only be explained on the basis of a labour theory of value.
The reason why economists came to reject any labour theory of value (Smith’s as well as Marx’s) was that it led to the conclusion Marx reached who, said Williams, based ‘his entire theory of exploitation on the labour theory of value’. It was, he said, ‘precisely because Smith was so influential, his wrong-headedness about the labour theory of value was a big problem.’
This problem was solved, says Williams, when economic theory ‘gets wrestled back through the correct understanding of value by the marginalists at the end of the 19th century’. How convenient for the exploiters of labour, but it turned academic economics from a science into apologetics for capitalism.