"The concept of self-interest extends far beyond monetary gain."Philosophy
"Rational individuals make calculations about fertility based on economic costs."Change
"Health is a form of capital that depreciates over time."Health
"Networks and social connections represent valuable forms of capital."Friendship
"The household production function explains how families create welfare from raw inputs."Family
"Taste changes can be understood through shifts in relative prices and incomes."Creativity
"Cultural transmission of values is an investment in family capital."Family
"Labor supply decisions reflect optimization between work and leisure."Work
"Incentives matter more than we typically acknowledge in social policy."Motivation
"The shadow price of time varies significantly across individuals and circumstances."Time
"Schooling is an investment with both consumption and production benefits."Education
"Discrimination persists because it provides utility to those who practice it, not just profits."Wisdom
"Geographic mobility reflects rational calculations about opportunity costs."Change
"The earnings premium from education reflects both signaling and human capital accumulation."Knowledge
"Fertility decisions are responsive to economic incentives and constraints."Success
"Social capital depreciates if not actively maintained and renewed."Relationships
"The allocation of household time is a fundamental economic decision."Time
"Preferences are endogenous and shaped by past experience and constraints."Philosophy
"Crime rates respond to changes in the probability and severity of punishment."Justice
"Household specialization increases productivity but creates interdependence."Family
"The value of information is determined by its scarcity and usefulness."Knowledge
"Human behavior is fundamentally goal-oriented and responsive to incentives."Motivation
"Investment in reputation is a rational economic decision."Success
"The quality of life depends on time allocation as much as income."Happiness
"Knowledge spillovers create positive externalities that markets undervalue."Science
"Family structure reflects optimization given economic constraints and opportunities."Family
"The costs of obtaining information significantly affect economic decisions."Wisdom
"Social institutions evolve because they solve real economic problems."History
"Intergenerational mobility depends heavily on investment in child human capital."Education
"The rational actor model explains behavior better when preferences are properly specified."Science