3 papers
econ.GN2026
Measuring growth and convergence at the mesoscale
Isaak Mengesha, Debraj Roy
Global inequality has shifted inward, with rising dispersion increasingly occurring within countries rather than between them. Using 8,790 newly harmonised Functional Urban Areas (…
econ.GN2026
Cities cluster into growth regimes that propagate shocks
Isaak Mengesha, Hourican Cillian, Debraj Roy
Economic growth is conventionally analyzed at the national level, yet cities generate the bulk of global output. Here we construct GDP trajectories for 8,808 functional urban areas…
econ.GN2026
Cognitive biases shape the evolution of zero-sum norms
Isaak Mengesha, Meiqi Sun, Debraj Roy
Why do maladaptive perceptions and norms, such as zero-sum interpretations of interaction, persist even when they undermine cooperation and investment? We develop a framework where…