@TechReport{iza:izadps:dp3258,
            	author={Pflüger, Michael P. and Suedekum, Jens},
            	title={On Pitchforks and Tomahawks},
            	year={2007},
	month={Dec},
            	institution={Institute of Labor Economics (IZA)},
            	address={Bonn},
            	type={IZA Discussion Paper},
            	number={3258},
            	url={https://www.iza.org/index.php/publications/dp3258},
	abstract={The core-periphery model by Krugman (1991) has two 'dramatic' implications: catastrophic agglomeration and locational hysteresis. We study this seminal model with CES instead of Cobb-Douglas upper tier preferences. This small generalization suffices to change these stark implications. For a wide range of parameters we find that the model exhibits instead a smooth and easily reversible transition from symmetry to agglomeration.},
	keywords={bifurcation pattern;agglomeration;new economic geography;core-periphery model},
            }