This book applies ideas and methods from the complexity perspective to key concerns in the social sciences, exploring co-evolutionary processes that have not yet been addressed in the technical or popular literature on complexity. Authorities in a variety of fields – including...

Events such as carnivals, parades, rock concerts, football matches, some types of shopping-indeed, any situation involving rapid exit or entrance from or to high-capacity buildings and vehicles—pose significant problems of public safety. Models designed to predict crowding at such events...

City systems show a degree of resilience and persistence that has rarely been emphasised in urban theory. There is a fascination for recent and contemporary change which suggests that phenomena such as the rise of the 'edge city', for example, comprise the predominant forces determining how a...

In this paper, we argue that the most appropriate form for urban population density models is the inverse power function, contrary to conventional practice, which is largely based upon the negative exponential. We first show that the inverse power function has several theoretical properties...

We pose the central problem of defining a measure of complexity, specifically for spatial systems in general, city systems in particular. The measures we adopt are based on Shannon’s (in Bell Syst Tech J 27:379–423, 623–656, <CitationRef CitationID="CR19">1948</CitationRef>) definition of information. We introduce this measure and...</citationref>

The four species of tuna that underpin oceanic fisheries in the tropical Pacific (skipjack, yellowfin, bigeye and albacore tuna) deliver great economic and social benefits to Pacific Island countries and territories (PICTs). Domestic tuna fleets and local fish processing operations contribute...