TY  - JOUR
AU  - Krugman,Paul
TI  - Cities in Space: Three Simple Models
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 3607
PY  - 1991
Y2  - January 1991
UR  - http://www.nber.org/papers/w3607
L1  - http://www.nber.org/papers/w3607.pdf
N1  - Author contact info:
Paul R. Krugman
Department of Economics
Princeton University
Woodrow Wilson School
Princeton, NJ  08544
Tel: 609/258-4570
Fax: 609/258-2809
E-Mail: pkrugman@princeton.edu
AB  - Urban agglomerations arise at least in part out of the interaction between economies of scale in production and market size effects. This paper develops a simple spatial framework to develop illustrative models of the determinants of urban location, of the number and size of cities, and of the degree of urbanization. A Central theme is the probable existence of multiple equilibria, and the dependence of the range of potential outcomes on a few key parameters.
ER  -