While this might be a reasonable way to divide economic thinking, Dobb effectively creates a false Adam Smith Problem. In my view, the two traditions are unified in Smith’s dialectic of natural price and market price, where the latter fluctuates irregularly around the former. (Natural price in Smith is similar to Ricardo’s ‘price of production’ and Quesnay’s ‘prix nĂ©cessaire’. Marx however reminds us in chapter 10 of volume III of Capital that none of them distinguish between price of production and value—an issue for another time.) Recognition of the importance of this dynamic—which later becomes central to Marx in three volumes of Capital and the Grundrisse—would circumvent the common accusation that the classicals somehow value production over exchange.
Natural commodity prices in Smith—revealed only as statistical ex post averages—are determined by natural wages multiplied by labour spent, the natural rent multiplied by the amount of land used, and the natural profit rate multiplied by the capital employed. Observable market prices then gravitate around natural prices by “dint of the operation of competition upon supplies and upon demand.” What’s the problem? Well, Smith doesn’t really determine a theory of natural wages or profit required to build this so-called ‘adding-up’ theory of value. Worse, his theory of rent is inside out, since it is circularly determined by the natural commodity price.
Dobb can be harsh. He insists that Smith’s offering of a labour theory of value exists only in his initial thought experiment set in that “early and rude state of society”, which precedes the accumulation of capital and the appropriation of land. And even there he maintains two labour theories of value: one where exchange value is regulated by the quantity of labour necessary to acquire or produce any commodity, the other where exchange value is regulated by the quantity of labour that the commodity can command or purchase on the market. Yes, this is a major confusion, and it is indeed the whole basis for Ricardo’s critique, but in a model void of appropriated land and accumulated capital is there any difference between the theories? (Example: a deer may be produced or acquired by a worker expending one day’s labour, making the labour embodied in that commodity, one day. Since profit and rent do not yet exist, we can then imagine that if supply and demand balance, the labour which can be purchased or commanded on the market by the deer-commodity is also one day.)
In any case, Dobb insists that once stock is accumulated and land is appropriated Smith abandons both labour theories for an ‘adding-up’ theory of value. While Smith relates an excellent description of the equalization of profits and wages under competitive conditions (rooted in the above-mentioned distinction between natural and market price), there does not seem to be any explanation as to the particular level they take. Thus the ‘adding-up’ theory is certainly not a labour theory of value, and since the actual levels of the component parts to be added themselves are not conceived, for Dobb, this theory is not a theory of value at all. Dobb flatly rejects commentators who implicitly or explicitly treat the labour theory of value as a kind of first approximation containing nothing essential that cannot be expressed in other terms.
Although he is at times hard on Smith, and in the end seems to eschew the quantitative use of labour-value magnitudes, Dobb maintains that the “labour-principle” makes an “important qualitative statement about the nature of the economic problem.” As such,
‘exploitation’ is neither something 'metaphysical' nor simply an ethical judgement (still less "just a noise") as has sometimes been depicted: it is a factual description of a socioeconomic relationship, as much as is Marc Bloch's apt characterization of Feudalism as a system where feudal lords “lived on the labour of other men”While I think this quotation illustrates important “qualitative” aspects of the theory of value, it also gives up too much ground. Amid the influence of Cambridge political economy, and especially the work of Piero Sraffa, Dobb’s concession seems apposite. I would prefer to follow those modern ‘classicals’ who also maintain the quantitative aspect of value theory which proposes that the socially necessary labour-time in a given economic sphere, over a given period is expressed as the money value added to all produced commodities, and hence equals total wages plus total profits, or alternately, total capitalist revenues minus total costs of machinery and materials. I can’t resist quoting an example from Duncan Foley’s Adam’s Fallacy, which illustrates his interpretation of the basic hypothesis of the labour theory of value:
…the GDP of the U.S. economy in 2005 was about 12 trillion dollars, and the employed labor force of about 150 million persons worked an average of 1600 hours per year. The total labor time (making no correction for complex labor) comes to about 240 billion hours; thus each hour of labor produced on average about $50. Marx constantly uses this method of translating from labor time to its money equivalent throughout Capital. This “monetary expression of labor time” has the same units as a wage, dollars per hour, but it is not the same as the wage. The monetary expression of labor time tells us the whole money value added per hour of labor, but workers, as Marx’s theory will emphasize later, get only a part of this back in the form of wages. The average wage is typically only a fraction of the monetary expression of labor time.I intended to conclude by commenting on some of Dobb’s other work—beyond Dobb the economist and Dobb the historian, there is also Dobb the public debater and labor educator who authored numerous popular pamphlets. Instead I digressed into the continuing imperative of value theory. Accordingly then, Ben Fine, in an essay from Capital & Class (No. 75, August, 2001) poses three central reasons why value theory, including both quantitative and qualitative aspects, must remain central to any political economy of capitalism. He’s very succinct, and all three points beg elaboration. I also think he’s correct:
First, it is the abstract basis on which to understand the social relations of capitalist commodity producing society. Second, it attaches complex forms, such as price and profit, to simple underlying determinants. Third, it addresses the dialectics of change and reproduction.