Elias L. Khalil

Textual exegesis is used to show that Marx's concept of social labor is transhistorical, referring to a collective activity of humans as a species. The collective nature of labor is suspended in capitalist production because of the anarchic character of market relations. But the suspension is skin deep: The sociality of labor asserts itself in a mediated manner through the alienated empowerment of goods with value. This is commodity fetishism, which vanishes when relations of production become actually collective?matching the transhistorical essence of labor. Marx's concept of social labor is adjudged inadequate. It amounts to asserting that the actions of agents could be ex ante calculated according to a global rationality. In this respect, Marx's concept of social labor is reminiscent of the equally deficient notion of perfect competition in mainstream neoclassical economics.

The paper distinguishes between two kinds of products, `symbolic' and `substantive'. While substantive products confer welfare utility in the sense of pecuniary benefits, symbolic products accord self-regarding utility. Symbolic products enter the utility function in a way which differs from substantive ones. The paper distinguishes among three kinds of symbolic products and proposes that each has a distorted form. If symbolic products result from forward-looking evaluation, they act as `prestige goods' which please admiration or, when distorted, as `vanity goods' which satiate pretentiousness. When symbolic products originate from forward-looking action, they act as `pride goods' which satisfy respect or, when distorted, as `deference goods' which indulge pomposity. When symbolic products arise from backward-looking evaluation, they act as `identity goods' which enhance dignity or, when distorted, as `reification goods' which gratify reverence

The brain is involved in theory-laden cognitive processes. But there are two different theory-laden processes. In cases where the theory is based on facts, more facts can either falsify or confirm a theory. In cases where the theory is about the choice of a benchmark or a standard, more facts can only make a theory either more or less warranted. Clark offers a review of a view of the brain where the brain pro- cesses input information in a way that confirms its priors or its pre- dictions. This does not mean that the brain creates its own reality. The brain, rather, processes input data, but it does so in light of its own priors. The brain is a bidirectional hierarchical structure. While the top layers generate priors, the lower layers process input data. The brain amounts to the dynamics of image- making, where the top-down process generates unified images, while the bottom-up process, which takes data, corrects the images.

Organisms change their shape and behavior during ontogenesis in response to incentives—what biologists call “phenotypic plasticity” or what is called here more specifically “behavioral plasticity.” Such plasticity is usually in the direction of enhancing welfare or fitness. In light of basic concepts in economics, such behavioral plasticity is nothing but rationality. Such rationality is not limited to organisms with neural systems. It also characterizes brainless organisms such as plants, fungi, and unicellular organisms. The gist of the article is the distinction between rationality and intelligence. Whereas rationality is ubiquitous in all organisms, intelligence varies in degrees depending on division of labor that may involve the evolution of a neural system. This article aims to defend the universality of rationality—the Organismus oeconomicus hypothesis. It argues that neither the notion of bounded rationality of behavioral economics nor Herbert Simon’s “procedural rationality” can ultimately undermine the Organismus oeconomicus hypothesis