Papers of the Regional Science Association · 2007 · 139 citations · 29 references
Social SciencesUrban PlanningUrban StudiesRegional DevelopmentUrban DevelopmentUrban GeographyCity GrowthCity SystemsRegional GrowthUrban GrowthUrban Growth ManagementUrban NetworksCity Growth PatternsRegional City GrowthRegional Urban Networks
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Sample Selection Bias as a Specification Error
James J. Heckman · Econometrica · 1979 · 28.9K citations
Increasing Returns and Long-Run Growth
Paul Romer · Journal of Political Economy · 1986 · 19.9K citations
Endogenous Technological Change
Paul Romer · Journal of Political Economy · 1990 · 16K citations