Minneapolis/St. Paul, because of its history of health maintenance organization development and active employer participation in the health care arena, is often cited as a community in which managed competition has been tested to some degree. This paper reviews the historical development of the Twin Cities health care market and summarizes findings from past studies of this market. It also desc...

Some archaeologists have suggested recently that clusters of houses at Classic Maya sites functioned as urban neighborhoods. This article presents comparative historical and ethnographic data from low-density cities to support this interpretation. I review two Mesoamerican cases: the Aztec calpolli and the modern Tzotzil house cluster; and urban clusters in two African cases: the Nupe city of B...

Re-creation of the extent of urban land use at different periods in time is valuable for examining how cities grow and how policy changes influence urban dynamics. To date, there has been little focus on the modeling of historical urban extent (other than for ancient cities). Instead, current modeling research has emphasized simulating the cities of the future. Predictive models can provide ins...

Growing populations and rapid worldwide urbanization are recognized as constituting one of the most complex processes in the world and have raised concerns about the sustainability of cities. Sustainable development, a widely accepted strategic framework in city planning, singles out urban green spaces as a primary solution for addressing these issues. Growing empirical evidences indicate that ...

How were cities distributed globally in the past? How many people lived in these cities? How did cities influence their local and regional environments? In order to understand the current era of urbanization, we must understand long-term historical urbanization trends and patterns. However, to date there is no comprehensive record of spatially explicit, historic, city-level population data at t...

Understanding the economic effects of long-term and gradual climate change, when people have time to adapt, is a central question in the current debate on climate change. Empirical evidence, however, is scarce. I study the economic effects of climate change over a period of 250 years during the Little Ice Age, a historical episode of climate change, between 1500 and 1750. Historians have argued...

During the last decade, many European digital cities applied ICT to improve the local public sphere, reinforce local democracy, support local communities and increase social participation. Different policies of a variety of stakeholders led to a wide variation of designs and functionality, content, main actors, aims and philosophy, organization, and use and users. To build a useful and sustaina...

The spatial division of cities into residential zones is a universal feature of urban life from the earliest cities to the present. I propose a two-level classification of such zones that archaeologists can use to analyze preindustrial cities. Neighborhoods are small areas of intensive face-to-face social interaction, whereas districts are larger areas that serve as administrative units within ...