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Location theory has become an integral part of economic geography, regional science, and spatial economics. Location theory addresses questions of what economic activities are located where and why. Location theory or microeconomic theory generally assumes that agents act in their own self-interest. Firms thus choose locations that maximize ...
Hägerstrand's earliest formulation of time geography informally described its key ontological features: "In time-space the individual describes a path" within a situational context; "life paths become captured within a net of constraints, some of which are imposed by physiological and physical necessities and some imposed by private and common ...
Location theory includes a number of theories and techniques for determining the optimal location to site a particular activity, based on minimizing travel costs. Notable examples include the classical early 20th Century theories of Johann Heinrich von Thünen, Walter Christaller, and Alfred Weber, and GIS-era algorithms for Location-allocation.
The gravity model of migration is a model in urban geography derived from Newton's law of gravity, and used to predict the degree of migration interaction between two places. [1] In 1941, astrophysicist John Q. Stewart [ 2 ] applied Newton's law to the social sciences, establishing a theoretical foundation for the field of social physics.
Examples of research that needs to consider the UGCoP include food access and human mobility. [23] [24] Schematic and example of a space-time prism using transit network data: On the right is a schematic diagram of a space-time prism, and on the left is a map of the potential path area for two different time budgets. [25]
Proximity analysis is a class of spatial analysis tools and algorithms that employ geographic distance as a central principle. [1] Distance is fundamental to geographic inquiry and spatial analysis, due to principles such as the friction of distance, Tobler's first law of geography, and Spatial autocorrelation, which are incorporated into analytical tools. [2]
The most common cost distance task is to determine the single path through the space between a given source location and a destination location that has the least total accumulated cost. The typical solution algorithm is a discrete raster implementation of the cost integration strategy of Warntz and Lindgren, [ 5 ] which is a deterministic ( NP ...
Examples of the visual language of time geography: space-time cube, path, prism, bundle, and other concepts. Time is usually thought to be within the domain of history, however, it is of significant concern in the discipline of geography. [38] [39] [40] In physics, space and time are not separated, and are combined into the concept of spacetime ...