Developmental psychology is unambiguous: secure attachment in early childhood is produced by sustained, responsive presence — the repeated experience of a caregiver who is physically and emotionally available, who responds to distress with comfort and to curiosity with engagement. The production function for secure attachment has a time dimension that cannot be compressed. The deposits are made slowly, through thousands of small interactions, and the capital they build — the child's internal working model of whether the world is safe and whether people can be relied upon — depreciates rapidly when the deposits stop. A parent who is physically present but cognitively absorbed in an AI-assisted project is, in production function terms, providing a degraded input. The time is there. The presence is not. The commodity being produced — the child's experience of being seen, valued, and prioritized — is underproduced, because the parent's attention, the true non-substitutable input, has been reallocated.
Becker's framework does not moralize about this. It describes it. The parent is maximizing subject to constraints. The constraints have changed. The prices have changed. The allocation has changed. And the allocation, viewed from the perspective of the individual agent responding to the price signals she faces, is rational.
But the commodity being underproduced — the child's secure attachment — is also a form of human capital. It is the foundational capital on which every subsequent investment will be built. The child who develops secure attachment goes on to form stronger relationships, maintain better health, exercise better judgment, and accumulate more human capital across every dimension of her life. The child who does not develop secure attachment goes on to struggle in ways that compound across a lifetime.
The underproduction of secure attachment is, in Becker's terms, an externality of the household's rational time allocation — a cost borne by the child and, eventually, by the society the child inhabits, that does not appear in the parent's optimization calculus because the cost is deferred and diffuse while the benefit of the alternative activity is immediate and concentrated.
This is the household version of the coordination failure identified in the labor market. The parent maximizes. The child receives less of the one input that cannot be substituted. The human capital of the next generation is formed on a thinner foundation than it could have been. And the thinning is invisible, because the visible outputs — the projects completed, the problems solved, the household running at higher cognitive capacity than ever before — mask the invisible deficit.
Attachment theory was developed by John Bowlby and Mary Ainsworth in the mid-twentieth century, grounded in ethological observation and longitudinal studies of mother-child interaction. The research established secure attachment as a foundational developmental outcome predicting adult functioning across domains. Becker's framework makes this empirical finding newly urgent by showing how the price structure AI creates pushes rational household allocation away from the activities that produce secure attachment.
Production requires presence. Secure attachment is generated by attention, not merely co-location — a parent cognitively absorbed in AI-assisted work provides a degraded input regardless of physical proximity.
Attachment is foundational human capital. It is the substrate on which every subsequent investment in the child's human capital depends, making its underproduction a first-order economic problem, not a sentimental one.
The externality. The cost of underproduction is borne by the child and by future society, not by the parent performing the rational reallocation.
The visibility problem. Visible household outputs rise even as invisible relational outputs decline, masking the deficit in the accounting the household actually performs.