Networks are structures that pervade many natural and manmade phenomena. Recent findings have characterized many networks as not random chaotic structures but as efficient complex formations. Current research has examined complex networks as largely a nonspatial phenomenon. Location, distance, and geography, though, are all vital aspects of a wide variety of networks. The authors examine the US portion of Internet infrastructure as a complex network and the role distance and geography play in its formation. From these findings implications are drawn on the economic, political, national security, and technological impacts of network formation and evolution in an information economy.

In this research note we report on our current efforts on developing a leading indicator of housing prices that could be used to forecast housing prices. Specif

In this paper we explore how satellite images of global night lights from year 1992 to 2003 can be used to estimate economic activity at the sub‐regional level in the US and China. The night lights based estimates of economic activity are then spatially analysed and compared with subregional economic indicators where available for selected years. We also briefly discuss two theoretical models that shed light on the geospatial patterns reflected by the night light data. The results are presented with a series of maps, charts and tables. Resumen. En este artículo exploramos el uso potencial de imágenes de satélite de la iluminación nocturna global desde 1992 a 2003 para estimar la actividad económica a escala subregional en los EE.UU. y en China. A continuación se analizan espacialmente las estimaciones de la actividad económica basadas en la iluminación nocturna y se comparan con los indicadores económicos subregionales disponibles para los años del estudio. Discutimos también brevemente dos modelos teoréticos que podrían ilustrar los patrones geoespaciales que reflejan los datos de iluminación nocturna. Los resultados se presentan junto con una serie de mapas, gráficos y cuadros.

We use protest signs to identify the main issue concerns, heroes, villains, and symbols of the American Tea Party, as well as to gain some insights into its demographics and its mobilizing frames. Based on a content analysis of 1,331 signs carried by Tea Party demonstrators at one rally in Washington, DC, on April 15, 2010, we conclude that the Tea Party movement is above all concerned with economic issues. It is far closer to a wing of the Republican Party than it is to an independent social movement with bipartisan appeal. Social issues are comparatively insignificant, as is race. The mobilizing frame is a restoration of America to a lost greatness via lower taxes and smaller government.