The two-tiered model resolves key questions on extrinsic mortality and fertility

Mary K. Shenk

doi:10.1017/S0140525X2510085X

The two-tiered model resolves key questions on extrinsic mortality and fertility

Mary K. Shenk

Anthropology

Research output: Contribution to journal › Article › peer-review

Abstract

I argue that the two-tier model represents a clear step forward, resolving debates and disentangling complexity in our understanding of human life history strategies. I relate the model to findings from my previous work, as well as to embodied capital and market integration, providing relevant schematics. I then discuss the timing of exposure to mortality cues and the age of the deceased, discussing what the two-tier model does and does not add to these debates.

Original language	English (US)
Article number	e121
Journal	Behavioral and Brain Sciences
Volume	48
DOIs	https://doi.org/10.1017/S0140525X2510085X
State	Published - Nov 11 2025

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 3 Good Health and Well-being

All Science Journal Classification (ASJC) codes

Neuropsychology and Physiological Psychology
Physiology
Behavioral Neuroscience

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10.1017/S0140525X2510085X

Cite this

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abstract = "I argue that the two-tier model represents a clear step forward, resolving debates and disentangling complexity in our understanding of human life history strategies. I relate the model to findings from my previous work, as well as to embodied capital and market integration, providing relevant schematics. I then discuss the timing of exposure to mortality cues and the age of the deceased, discussing what the two-tier model does and does not add to these debates.",

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The two-tiered model resolves key questions on extrinsic mortality and fertility

Abstract

UN SDGs

All Science Journal Classification (ASJC) codes

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