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We study the general equilibrium effects of localised technical progress à la Atkinson–Stiglitz in economies in which capital is a vector of reproducible and heterogeneous goods. We show that there is no obvious relation between ex-ante profitable innovations and the functional distribution of income that actually emerges in equilibrium. Unlike in the standard macroeconomic approach to technical progress, localised innovations may lead to indeterminacy in equilibrium factor prices, and individually rational choices of technique do not necessarily lead to optimal outcomes. Innovations may even cause the disappearance of all equilibria.