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Subjectivism and Economic Analysis: Essays in memory of Ludwig ...

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SUBJECTIVISM IN ECONOMICS AND THE ECONOMY<strong>Economic</strong> analysis, serv<strong>in</strong>g for two centuries to w<strong>in</strong> anunderst<strong>and</strong><strong>in</strong>g <strong>of</strong> the Nature <strong>and</strong> Causes <strong>of</strong> the Wealth <strong>of</strong>Nations, has been fobbed <strong>of</strong>f with another bride—a Theory <strong>of</strong>Value…economists for the last hundred years have sacrificeddynamic theory <strong>in</strong> order to discuss relative prices.(Rob<strong>in</strong>son 1956: v)We have already seen why the rejection <strong>of</strong> cost-<strong>of</strong>-productiontheories should apparently evoke an urgent need to <strong>in</strong>vent somealternative basis <strong>of</strong> value, <strong>and</strong> why utility-based measures should be<strong>in</strong>adequate unless anchored <strong>in</strong> a perfectly competitive generalequilibrium. We might now observe also that the centre <strong>of</strong>gravitation provided by ‘natural values’ had to be replaced by someother pr<strong>in</strong>ciple <strong>of</strong> co-ord<strong>in</strong>ation if economists were to <strong>of</strong>fer a formalsolution to the allocation problem <strong>in</strong> a decentralised economy.Unfortunately the chosen solution to these tw<strong>in</strong> requirementsentailed a very high opportunity cost, as Joan Rob<strong>in</strong>son (eventually)<strong>and</strong> Lachmann clearly realised.One <strong>of</strong> the first to recognise the problem was Alfred Marshall;<strong>and</strong> he was prepared to tolerate a good deal <strong>of</strong> ambiguity <strong>in</strong> order toexploit the advantages <strong>of</strong> mechanical metaphors <strong>in</strong> the (<strong>in</strong>tendedly)first volume <strong>of</strong> his Pr<strong>in</strong>ciples while ma<strong>in</strong>ta<strong>in</strong><strong>in</strong>g that, even <strong>in</strong> itsfoundations, the theme <strong>of</strong> economics must be ‘liv<strong>in</strong>g force <strong>and</strong>movement’. Moreover, Marshall believed that he saw an eventualprospect <strong>of</strong> comb<strong>in</strong><strong>in</strong>g a theory <strong>of</strong> growth with a theory <strong>of</strong> coord<strong>in</strong>ation:co-ord<strong>in</strong>ation is achieved, imperfectly <strong>and</strong> with cyclicallapses, by a comb<strong>in</strong>ation <strong>of</strong> organisation <strong>and</strong> competitive selection,<strong>and</strong> this comb<strong>in</strong>ation also provides both <strong>in</strong>centives <strong>and</strong>opportunities for the generation <strong>of</strong> new ideas.Lachmann became <strong>in</strong>creas<strong>in</strong>gly conscious <strong>of</strong> his aff<strong>in</strong>ity withMarshall: his own account (Lachmann 1986:16–17) <strong>of</strong> the<strong>in</strong>tramarket processes <strong>of</strong> <strong>in</strong>novative variation <strong>and</strong> imitation, thattransform both products <strong>and</strong> technology by cont<strong>in</strong>uouscompetitive improvement, is thoroughly Marshallian, withChamberl<strong>in</strong>ian touches. In a letter <strong>of</strong> 29 April 1990, he wrote:‘The Firm is very much Marshall’s child. Neither Walras/Paretonor the Austrians know it. Why? What did Marshall need it for?’The prime reason, I suggest, is that firms were the pr<strong>in</strong>cipal agents<strong>of</strong> the <strong>in</strong>tra-market processes to which Lachmann drewattention—<strong>in</strong> the British economy, which Marshall knew from hisfactory visits no less than <strong>in</strong> the pages <strong>of</strong> the Pr<strong>in</strong>ciples. A secondmajor reason is that his conception <strong>of</strong> the firm as a source <strong>of</strong>19

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