In this concise, clear introduction, the authors describe the theory of spatial diffusion, its method of measurement and many of its applications. The seminal work of Torsten Hagerstrand, who introduced the original spatial model of diffusion, is outlined. The authors then summarise the developments that have been made to Hagerstrand's formulation, and make suggestions for future research.

An exploration of the geography by which measles has repeatedly passed through a series of communities in Iceland during the 20th century. Demonstrates the general principles which underlie person-to-person spatial diffusion processes.

Now in its fifth edition, Diffusion of Innovations is a classic work on the spread of new ideas. In this renowned book, Everett M. Rogers, professor and chair of the Department of Communication & Journalism at the University of New Mexico, explains how new ideas spread via communication channels over time. Such innovations are initially perceived as uncertain and even risky. To overcome this uncertainty, most people seek out others like themselves who have already adopted the new idea. Thus the diffusion process consists of a few individuals who first adopt an innovation, then spread the word among their circle of acquaintances—a process which typically takes months or years. But there are exceptions: use of the Internet in the 1990s, for example, may have spread more rapidly than any other innovation in the history of humankind. Furthermore, the Internet is changing the very nature of diffusion by decreasing the importance of physical distance between people. The fifth edition addresses the spread of the Internet, and how it has transformed the way human beings communicate and adopt new ideas.

This report summarizes presentations and discussions at the Workshop on the Social Processes Underlying Fertility Change in Developing Countries, organized by the Committee on Population of the National Research Council (NRC) in Washington, D.C., January 29-30, 1998. Fourteen papers were presented at the workshop; they represented both theoretical and empirical perspectives and shed new light on the role that diffusion processes may play in fertility transition. These papers served as the basis for the discussion that is summarized in this report.

A book that will delight students... Key Texts in Human Geography is a primer of 26 interpretive essays designed to open up the subject′s landmark monographs of the past 50 years to critical interpretation... The essays are uniformly excellent and the enthusiasm of the authors for the project shines through... It will find itself at the top of a thousand module handouts. - THE Textbook Guide "Will surely become a ‘key text’ itself. Read any chapter and you will want to compare it with another. Before you realize, an afternoon is gone and then you are tracking down the originals." - Professor James Sidaway, University of Plymouth ′An essential synopsis of essential readings that every human geographer must read. It is highly recommended for those just embarking on their careers as well as those who need a reminder of how and why geography moved from the margins of social thought to its very core." - Barney Warf, Florida State University Undergraduate geography students are often directed to ′key′ texts in the literature but find them difficult to read because of their language and argument. As a result, they fail to get to grips with the subject matter and gravitate towards course textbooks instead. Key Texts in Human Geography serves as a primer and companion to the key texts in human geography published over the past 40 years. It is not a reader, but a volume of 26 interpretive essays highlighting: the significance of the text how the book should be read reactions and controversies surrounding the book the book′s long-term legacy. It is an essential reference guide for all students of human geography and provides an invaluable interpretive tool in answering questions about human geography and what constitutes geographical knowledge.

This open access book analyses the global diffusion of social policy as a process driven by multiplex ties between countries in global social networks. The contributions analyze links between countries via global trade, colonial history, similarity in culture, and spatial proximity. Networks are viewed as the structural backbone of the diffusion process, and diffusion is anlaysed via several subfields of social policy, in order to interrogate which network dimensions drive this process. The focus is on a global perspective of social policy diffusion via networks, and it is the first book to explicitly follow this macro-quantitative perspective on diffusion at a global scale whilst also comparing different networks. The collection tests the network structures in terms of their relevance to the diffusion process in different subfields of social policy such as old age and survivor pensions, labor and labor markets, health and long-term care, education and training, and family and gender policy. The book will therefore be invaluable to students and researchers of global social policy, sociology, political science, international relations, organization theory and economics.