Tradable Sector Local Growth

Tradable sector local growth is the episode’s explanation of how a city or region grows by selling goods or services to people outside the community. Why are we so obsessed with manufacturing? presents manufacturing as one tradable sector alongside agriculture, colleges, hospitals, tech, finance, mining, and tourism.

The concept separates export-base activity from local circulation. Restaurants, gyms, and barber shops can be important employers, but the source says they mostly circulate wealth already inside the community unless outside income first enters through tradable sectors.

Key Claims

• Manufacturing can help local economies because it sells output beyond the immediate community.
• The same logic applies to other tradable sectors, so manufacturing is not unique.
• The concept explains why Superstar Cities matter: opportunity concentrates where high-value tradable sectors cluster.
• Local growth depends on both the direct jobs and the service jobs supported by worker spending.

Connections

• Manufacturing Regional Multiplier - local-spillover estimate attached to manufacturing jobs.
• Enrico Moretti - economist cited for multiplier comparisons.
• Superstar Cities - regional concentration frame.
• Good Jobs For Non-College Workers - worker-policy question shaped by where tradable sectors locate.