Domain: Disease Outbreak Frequency
Frequency and determinants of infectious disease outbreaks reported through surveillance systems
Population: Countries worldwide
Why cities make people more productive and what the limits are — agglomeration economies, knowledge spillovers, sorting, and congestion costs. Built on Glaeser, Moretti, Duranton & Puga, and Combes. Data from OECD Metropolitan Database (650+ metro areas), US Census urban-rural panels, and European city-level wage regressions. Covers the urban wage premium, innovation clustering, housing affordability tradeoffs, and remote work disruption.
Frequency and determinants of infectious disease outbreaks reported through surveillance systems
population_density
Population DensityThe number of people per unit area (typically per km²), which affects disease transmission dynamics and outbreak potential.
urban_wage_premium
Urban Wage PremiumThe percentage by which wages in dense urban areas exceed wages in less dense areas, controlling for worker characteristics. Raw premium ~30% for doubling city size; after controlling for sorting (education, ability), residual agglomeration premium is ~4-8% per doubling of density. Measured via Mincerian wage equations with city-size or density controls.
knowledge_spillovers
Knowledge SpilloversThe informal transfer of knowledge between co-located workers and firms through face-to-face interaction, labor mobility, and observation. Measured via patent citation localization, co-invention networks, or productivity growth after arrival of star scientists. Jaffe (1993): patent citations are 5-10x more likely to cite geographically proximate patents, controlling for technology class.
housing_cost_burden
Housing Cost BurdenRatio of median housing costs (rent or mortgage) to median household income in a metro area. The primary congestion cost of agglomeration. US metros range from 20% (Sun Belt) to 50%+ (San Francisco, New York). When housing costs are subtracted, the real urban wage premium shrinks or vanishes for many workers.
patent_density
Patent DensityPatents per capita or per worker in a metro area. Proxy for localized innovation output. Correlation with population density: r~0.35. Highly concentrated: top 20 MSAs produce ~60% of US patents. OECD REGPAT database provides geocoded patent data back to 1977.
commute_time
Average Commute TimeMean one-way commute duration in minutes for metro area workers. The primary time-cost of agglomeration. US average ~27 minutes; NYC ~40 minutes. Increases approximately 8 minutes per doubling of metro population. ACS and OECD provide annual estimates.
Domain: Disease Outbreak Frequency
Frequency and determinants of infectious disease outbreaks reported through surveillance systems
Population: Countries worldwide
Install this PAX into your Praxis instance:
praxis_import_pax("urban-agglomeration-economics.pax.tar.gz", install=True)