Policy Implications of Alternative Economic Paradigms: Some surprises from endogenous technological changes

One of the most neglected issues in modern economics concerns the consequences of technological change that is ubiquitous and endogenous. To address these we need to model technology as more than a scalar value in an aggregate production function, dealing with technological change in its messy micro economic details. This paper illustrates these points by considering the policy implications of some alternative economic theories that treat technology differently. The first section contrasts the policy implications of neoclassical and evolutionary economics with respect to the evaluation of the efficiency of the price system, policies with respect to 'distortions,' policies to discourage monopolies, to encourage economic growth in general, and infant industries and specific technological advances in particular. The second section contrasts New Classical and various versions of Keynesian economics with respect to micro behavioural underpinnings of macro relations, the place of technology as a driving force of economic change, and aggregate demand as both a source of fluctuations and a variable to be manipulated by policy makers.