"aggregate rationality"

Rational choice model Wikipedia

Aggregate rationality in archaeology

AI Overview In archaeology, aggregate rationality refers to the principle that large-scale, long-term patterns in the archaeological record are the emergent result of many individual, adaptive decisions rather than top-down societal decrees. National Institutes of Health (.gov) Because archaeological data rarely capture the intent of a single person, archaeologists rely on aggregate patterns to understand past human behavior. The concept spans several key theoretical and methodological frameworks: Key Theoretical Frameworks Human Behavioral Ecology (HBE): HBE operates on the premise that individuals make adaptive, rational choices to maximize their survival and reproductive success (e.g., foraging, toolmaking, or settling). Over time and across a population, these localized choices manifest as broad, measurable patterns, such as shifts in settlement locations or dietary breadth. National Institutes of Health (.gov) Agent-Based Modeling (ABM): ABM relies on the concept of aggregate rationality to simulate past societies. Archaeologists program "agents" (digital representations of people) with basic rules of behavior and resource optimization, allowing them to observe how large-scale, complex societal structures organically emerge from the bottom up. Deutsches Bergbau-Museum +1 Assemblage Theory: Instead of viewing artifact groups as reflections of a single unified "culture," this approach explores how individual objects, human actions, and environmental factors intersect to form dynamic, emergent aggregates of practice over space and time. Springer Nature Link +1 Methodological Implications Understanding "Irrational" Acts: Not all ancient practices conform to modern, Western standards of practical, cost-effective utility. Archaeologists, such as those working with the European Journal of Archaeology, note that ritualistic or symbolic actions—which might appear irrational on the surface—can reflect distinct, past forms of rationality when viewed in their complete environmental and cultural context. Taylor & Francis Online +3 Critique of Homo economicus: Many anthropologists have moved away from the assumption that ancient humans acted as perfectly rational, omniscient economic actors. Instead, aggregate rationality allows for bounded rationality, where decisions are made with limited information and under social or environmental constraints

Aggregate rationality in archaeology via Google Scholar

Particularism and the retreat from theory in the archaeology of agricultural origins Kristen Gremillion et al. PNAS (2014)

Review of Wurzer, Gabriel, Kowarik, Kerstin and Reschreiter, Hans (eds.): Agent-Based Modeling and Simulation in Archaeology Advances in Geographic Information Science (2014)

Archaeology as Complexity Science: An Agent-based Perspective bergbaumuseum.de

Models are pieces of machinery that relate observations to theoretical ideas (Clarke, 1972)

...A complex adaptive system, then, is a complex system containing adaptive agents, networked so that the environment of each adaptive agent includes other agents in the system.

...Agent-based Modelling and Complexity Economics for Archaeology?!

• Economics is interested in the production, allocation and consumption of material goods and also services, but mainly in present time.
• Archaeological evidence, both indirect (e.g., land-use change) or direct (e.g., material artefacts) are part of the economic systems of our past.
• Economic theory is not limited to market-economies.
• Complexity Economics is transdisciplinary.

Social_Theory and Archaeology Michael Shanks and Christopher Tilley (pdf)

Materiality, Agency and Evolution of Lithic Technology: an Integrated Perspective for Palaeolithic Archaeology Shumon T Hussain and Maneul Will J Archaeol Method Theory (2020) (full text)

In anthropology

... In anthropology, "aggregate rationality" refers to the concept of whether the collective behaviors of a society—such as economic trends, institutions, or rituals—can be explained as the logical sum of individual, self-interested decisions. It is a central point of debate between formalist and substantivist schools of thought. [1, 2, 3]

Anthropologists approach aggregate rationality in the following ways:

1. Rational Choice Theory (Formalism)

• The Core Idea: Posits that human behavior, across all cultures, can be understood as the aggregate outcome of individuals making logical, self-interested choices to maximize their material or social gain.[1]
• Application: Used frequently in economic, ecological, and evolutionary anthropology to model collective-action dilemmas, such as the management of shared resources or community trading networks. [1, 2]

2. The Cultural Critique (Substantivism)

• The Core Idea: Anthropologists often argue that true aggregate rationality is a myth. Substantivists emphasize that human decision-making is not universally driven by capitalist utility-maximization, but is instead embedded in complex webs of social meaning, religious obligations, and kinship. [1, 2, 3]
• Application: Collective institutions often emerge from "thick psychological" cultural beliefs and historical realities rather than technical, economic formulas. [1]

3. Bounded Rationality and Practice

• The Middle Ground: Many modern anthropologists utilize frameworks like bounded rationality. This approach acknowledges that while people do use reasoning, they do so with limited information, distinct cultural cognitive biases, and culturally defined goals rather than absolute, objective logic. [1, 2, 3, 4, 5]

4. Group Selection vs. Individual Maximization

• The Evolutionary Perspective: Anthropologists debate whether aggregate cultural practices (like food sharing or specific taboos) exist because they are rationally chosen by individuals, or because groups with these practices were more successful in survival and evolution (cultural group selection). [1]

Aggregate rationality in anthropology Google Scholar

Rational Choice Theory R Jon McGee and Richard L Warms

Rational choice theory is an umbrella term for a variety of models explaining social phenomena as outcomes of individual action that can in some way be construed as rational. "Rational behavior" is behavior that is suitable for the realization of specific goals, given the limitations imposed by the situation. The key elements of all rational choice explanations are individual preferences, beliefs, and constraints. Preferences denote the positive or negative evaluations individuals attach to the possible outcomes of their actions. Preferences can have many roots, ranging from culturally transmitted tastes for food or other items to personal habits and commitments. Beliefs refer to perceived cause-effect relations, including the perceived likelihood with which an individual's actions will result in different possible outcomes. For example, a village head may believe that raiding a neighboring village A has a higher probability of success than raiding a neighboring village B. Constraints define the limits to the set of feasible actions (e.g., the amount of credit one can get imposes a budget constraint on those considering buying a house).