Urban Economic Models and Land Use Optimization

Urban economic models integrate spatial and economic components to explain the distribution of population, firms and land uses within metropolitan areas. These frameworks commonly rely on the trade-off between accessibility and land costs, often represented in monocentric city structures or polycentric extensions. Core elements include housing and land rent gradients, commuting costs, agglomeration economies and negative externalities such as congestion and pollution. Land use optimisation builds on these models to guide policy instruments – from zoning regulations and taxes to infrastructure investments – towards sustainable urban forms. Recent advances have introduced multidimensional spatial equilibrium formulations that accommodate nature-based solutions, dynamic transport networks and resilience to shocks. By calibrating these models with empirical data, practitioners can assess the welfare impacts of greening strategies, congestion tolls, carbon pricing and public transit expansion, yielding actionable insights for urban planners and policymakers worldwide.

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Urban Economic Models and Land Use Optimization publication trend

The graph below shows the total number of articles in urban economic models and land use optimization across all publications each year (not limited to Nature Index journals).

Technical terms

Spatial equilibrium model: A framework that balances supply and demand across urban locations, linking land rents, population distribution and commuting costs to determine equilibrium patterns.

Monocentric city model: An urban structure assumption with a single central business district where all employment is located, leading to declining land rents with distance from the centre.

Agglomeration economies: Benefits firms and households obtain from proximity to one another, such as knowledge spill-overs, specialised labour pools and reduced transport costs.

Negative externality: A cost imposed by an economic actor on others, such as congestion or pollution, not reflected in market prices.

Land rent gradient: The rate at which land rent declines as distance from a central location increases, reflecting accessibility trade-offs.

References

1. Nature-based solutions for fast-growing city regions: A new spatial equilibrium model for complementary urban green space planning. Journal of Cleaner Production (2024).
2. Dirty density: Air quality and the density of American cities. Journal of Environmental Economics and Management (2023).
3. The long-run effects of congestion tolls, carbon tax, and land use regulations on urban CO2 emissions. Regional Science and Urban Economics (2022).