A sedimentary pollen sequence from the coastal plain of Veracruz, Mexico, demonstrates maize cultivation by 5,000 years ago, refining understanding of the geography of early maize cultivation. Methodological issues related to bioturbation involved in dating that record combine with its similarity to a pollen sequence from the coastal plain of Tabasco, Mexico, to suggest that the inception of ma...

Most U.S. beef packers with multiple plants now openly employ multi-plant coordination. Using a Salop Circular City framework that includes negotiated and formula pricing, we demonstrate coordination leads to wider spreads between downstream prices upstream fed cattle if markdowns outweigh efficiencies. Taken together market concentration, geography transportation costs, cycles related packer c...

Does recent growth of darknet markets signify a slow reorganisation of the illicit drug trade? Where are darknet markets situated in the global drug supply chain? In principle, these platforms allow producers to sell directly to end users, bypassing traditional trafficking routes. And yet, there is evidence that many offerings originate from a small number of highly active consumer countries, r...

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The issue of teaching transport geography at the undergraduate level has rarely been the focus of much discussion, although geographical education itself has received a lot of attention. 1 Over the last 40 years, transport geography has been part of the curriculum of many geography programs, providing a significant contribution, both conceptually and methodologically. Indeed, many spatial theor...

In the literature, innovation is the outcome of spatial interactions between the innovative structure of a district and its knowledge structure: innovations tend to concentrate in the locations where they find knowledge that is necessary for the development of innovating activities. Thus, proximity increases the chance of developing new ideas (Feldman, 1999). Starting from this theoretical hypo...

Plants are widely advocated as beneficial for indoor, urban environments; however, research into how people live with indoor plants in their homes remains limited. This article begins to investigate plant keeping and it is experienced valued. Empirically, the draws on exploratory qualitative undertaken houseplant keepers within inner suburbs of Melbourne (Australia). The shows that valued diver...

of the Past: A Mixed Spatially Correlated Multinomial Logit Model Approach for the Analysis of the Public Land Survey Data Eun-Hye Yoo, Bruce W. Hoagland, Guofeng Cao, Todd Fagin Department of Geography, University at Buffalo, Buffalo, NY, USA, Oklahoma Natural Heritage Inventory and Department of Geography and Environmental Sustainability, University of Oklahoma, Norman, OK, USA, Department of...

Towards a general theory of geographic representation in GIS Michael F. Goodchild a , May Yuan b & Thomas J. Cova c a National Center for Geographic Information and Analysis and Department of Geography, University of California, Santa Barbara, CA 93106‐4060 b Department of Geography, University of Oklahoma, 100 East Boyd St, Norman, OK 73019‐1008 c Department of Geography, University of Utah, 2...