1. Ago, T., Isono, I., Tabuchi, T.: Locational disadvantage of the hub. Ann. Reg. Sci. 40(4), 819–848 (2006)
2. Akamatsu, T., Takayama, Y., Ikeda, K.: Spatial discounting, Fourier, and racetrack economy: a recipe for the analysis of spatial agglomeration models. J. Econ. Dyn. Control 36, 1729–1759 (2012)
3. Baldwin, R., Forslid, R., Martin, P., Ottaviano, G., Robert-Nicoud, F.: Economic Geography and Public Policy. Princeton University Press, Princeton (2004)
4. Barbero, J., Zofío, J.L.: The multiregional core–periphery model: the role of the spatial topology. Netw. Sp. Econ. 16(2), 196–469 (2012)
5. Behrens, K., Robert-Nicoud, F.: Tempora mutantur: in search of a new testament for NEG. J. Econ. Geogr. 11(2), 215–230 (2011)