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Circular economies are an important pillar of sustainable production and consumption. This particularly applies to the agri-food industry, which is characterised by large amounts of organic waste and by-product streams posing a serious challenge for many food producers. Therefore, respective firms increasingly adopt circular economy business models (CEBMs) to manage these resource flows effectively. However, there is only little knowledge on the functioning of CEBMs in bio-based industries, especially from a socio-economic perspective. We address this gap by exploring enablers and motivations behind such business models as well as the institutional contexts they are embedded in. In methodological terms, we adopt a case study approach using the example of potato production in Lower Saxony (northwest Germany). The core of the paper is a qualitative in-depth analysis of four potato processors, adopting varying business models to valorise their by-product streams (e.g. peels, scraps, pulp) either 'in-house' or in partnerships with external partners. The findings show that the implementation of CEBMs results from a complex interplay of internal and external enablers, with economic considerations as the main impetus for the management of biological reverse cycles. Thereby, we found a shifting economic logic in the assessment of potato by-products from disposable waste to valuable resources for other sectors (e.g. livestock farming, bioenergy, biofuels). While being encouraged by targeted policies, the companies studied feel increasingly affected by emerging sustainability discourses, prompting them to (re)design and (re)frame their CEBMs in view of environmental and societal issues. [ABSTRACT FROM AUTHOR]

The treatment of organic waste, by‐products and other residual materials from bio‐based industries is currently changing from disposing to recycling and reusing activities, which may create significant added values. However, these valorisation pathways as well as their institutional and geographical contexts are not yet sufficiently understood. From an actor‐centric perspective, we seek to shed light on extant practices of agri‐food waste valorisation using the examples of potato and rapeseed production in Lower Saxony, Germany. Drawing on conceptual thoughts on circular bioeconomies and the nexus approach, we will show that these practices not only depend on the availability of (technological) solutions but are affected by changing economic and political environments in combination with place‐specific conditions and local networks. We further describe the cross‐sectoral relations, synergies and externalities that come along with by‐product valorisation in multi‐use systems, while also revealing the fragile stability of circular bioeconomies that are linked to the food–feed–energy nexus. [ABSTRACT FROM AUTHOR]

Current discourses on the agrifood sector indicate that issues like provenance, regionality or traceability are becoming more and more relevant. This also applies to the globalizing pork industry which is the focus of this paper. On the basis of a case study on the Oldenburger Münsterland, Northwest Germany, the impact of geographic origin effects on multiscalar networks of pork production is examined from the perspective of three conceptual frameworks (global production networks, commodity cultures, and imaginative geographies). The empirical findings based on expert interviews show that key actors of the pork industry (e.g. slaughterers, manufacturers, retailers) adopt specific strategies that are related to changing (and partly delusive) meanings of provenance and regionality. In this respect, several export-oriented firms emphasize a guaranteed German origin primarily in order to develop markets (particularly in East Asian countries). Regional and small-scale strategies, however, are obviously not of such a great importance as media-dominated discourses on geographic origins of foods would have us believe. [ABSTRACT FROM AUTHOR]

Scientists analyze sustainability at the regional level with a combination of multiple indicators which reflect different characteristics of regions without combining the results in a single comparative unit. Moreover, the assessment of interdependencies between different characteristics requires experts' analyses, which makes sustainability analysis subjective, time consuming, and limited in use. This article analyzes the relative sustainability of subnational level regions through the application of regional sustainability assessment methodology (RSAM) based on accounting of resources capital and its internal and external transfers. This approach allows for assessment of regional sustainability as a function of resource quantity, quality, and interchangeability. The comparison of the two case study regions presented in the paper indicates the difference between a more sustainable region and a region of 'weak sustainability.' First, the article indicates the discussion of the relevant geographic, economic, and social literature for both sustainability assessment and regional comparison. This discussion is followed by a conceptual representation of proposed RSAM and its application to various regions. Next, the article covers the data used and applied methods to test the proposed methodology and compare the two case study regions. The article concludes with a discussion of findings and recommendations for further application and testing. [ABSTRACT FROM AUTHOR]

Surprisingly little theoretical or empirical research is available on Auckland's actual functional and geographic connectivity, including developments relating to closer economic relations with Australia. This paper draws on the geography of accumulation literatures to argue that close attention must be given to developments in the three circuits of capital (trade, production and finance) if the changing character and contributions of globalising firm networks are to be discerned and understood. The empirical investigations show that for Australian owned firms globalising rather than purely Australasian networks are the norm, network complexity is considerable and that it makes sense to think of Auckland's economy in globalising terms. A globalising networks perspective means that estimates of the magnitude and assessments of the character of employment contributions of Australian owned firms to the Auckland economy reflects these interdependencies. [ABSTRACT FROM AUTHOR]

An introduction is presented in which the editor discusses various reports within the issue on topics including regional economic growth, economy geography, and technological innovations.

New Zealand's regions exhibit marked spatial variations in firm formation, with the urban areas being less entrepreneurial than the rest of the country, when the analysis controls for the varying sizes of regions. This empirical finding reflects differences in industry structures, with a greater presence of firm births in manufacturing industries and business services in more peripheral and less urbanised areas, especially on the South Island of New Zealand. Using the business demographic statistics (BDS) database by Statistics New Zealand we develop a regression model to explain spatial variations in firm formations over the period 2000–2005. The following explanatory factors are found to be of central importance for firm formations in the New Zealand context: concentration, firm size, population, population growth, income growth and specialisation. Implications of the findings for policy makers and politicians in New Zealand are discussed. [ABSTRACT FROM AUTHOR]

Today, technology-oriented business incubators are a worldwide phenomenon, although empirical research evidence clearly suggests that they tend to fail in supporting entrepreneurship, innovation, and regional development and, therefore, do not fulfil their expected role as policy instrument. The paper focuses on this obvious antagonism. It deliberates upon political rationales, reviews evaluation literatures, and delineates suggestions for the future of the incubation industry. The main conclusion is that technology-oriented business incubators should be run as private organisations without public funding. [ABSTRACT FROM AUTHOR]

Tamásy C. (2006) Determinants of regional entrepreneurship dynamics in contemporary Germany: a conceptual and empirical analysis, Regional Studies 40, 365–384. The importance of entrepreneurship for the development of national and regional economies is widely recognized. Although politicians in Germany are aware of entrepreneurship, their practices cannot rely on a generally accepted theory of entrepreneurship. The paper develops a holistic conceptualization of regional entrepreneurship dynamics and investigates empirically determinants of start-up activities and new business success in selected German regions. It uses two primary data sets explicitly designed to analyse regional entrepreneurship dynamics in contemporary Germany. The research project ‘Regional Entrepreneurship Monitor’ focuses on determinants of start-up activities in the pre-entry phase of entrepreneurial processes, while the ‘New Firm Survey’ examines factors influencing post-entry firm success. The paper suggests holistic approaches in entrepreneurship research are necessary, because entrepreneur-associated factors, characteristics of the newly founded firm and the geographical environment influence entrepreneurial processes. These determinants can have direct or indirect influences on entrepreneurial processes. The results suggest that politicians and policy-makers need to pay special attention to entrepreneurial attitudes and behaviours if they wish to boost regional entrepreneurship dynamics in Germany. Regional entrepreneurship dynamics Start-up activities New business success Determinants Germany Tamásy C. (2006) Determinants of regional entrepreneurship dynamics in contemporary Germany: a conceptual and empirical analysis, Regional Studies 40, 365–384. The importance of entrepreneurship for the development of national and regional economies is widely recognized. Although politicians in Germany are aware of entrepreneurship, their practices cannot rely on a generally accepted theory of entrepreneurship. The paper develops a holistic conceptualization of regional entrepreneurship dynamics and investigates empirically determinants of start-up activities and new business success in selected German regions. It uses two primary data sets explicitly designed to analyse regional entrepreneurship dynamics in contemporary Germany. The research project ‘Regional Entrepreneurship Monitor’ focuses on determinants of start-up activities in the pre-entry phase of entrepreneurial processes, while the ‘New Firm Survey’ examines factors influencing post-entry firm success. The paper suggests holistic approaches in entrepreneurship research are necessary, because entrepreneur-associated factors, characteristics of the newly founded firm and the geographical environment influence entrepreneurial processes. These determinants can have direct or indirect influences on entrepreneurial processes. The results suggest that politicians and policy-makers need to pay special attention to entrepreneurial attitudes and behaviours if they wish to boost regional entrepreneurship dynamics in Germany. Dynamique entrepreneuriale régionale Création d'entreprise Réussite des nouvelles entreprises Déterminants Allemagne Tamásy C. (2006) Determinants of regional entrepreneurship dynamics in contemporary Germany: a conceptual and empirical analysis, Regional Studies 40, 365–384. The importance of entrepreneurship for the development of national and regional economies is widely recognized. Although politicians in Germany are aware of entrepreneurship, their practices cannot rely on a generally accepted theory of entrepreneurship. The paper develops a holistic conceptualization of regional entrepreneurship dynamics and investigates empirically determinants of start-up activities and new business success in selected German regions. It uses two primary data sets explicitly designed to analyse regional entrepreneurship dynamics in contemporary Germany. The research project ‘Regional Entrepreneurship Monitor’ focuses on determinants of start-up activities in the pre-entry phase of entrepreneurial processes, while the ‘New Firm Survey’ examines factors influencing post-entry firm success. The paper suggests holistic approaches in entrepreneurship research are necessary, because entrepreneur-associated factors, characteristics of the newly founded firm and the geographical environment influence entrepreneurial processes. These determinants can have direct or indirect influences on entrepreneurial processes. The results suggest that politicians and policy-makers need to pay special attention to entrepreneurial attitudes and behaviours if they wish to boost regional entrepreneurship dynamics in Germany. Regionale Dynamik des Unternehmertums Gründungsaktivitäten Erfolge neuer Unternehmen bestimmende Faktoren Deutschland Tamásy C. (2006) Determinants of regional entrepreneurship dynamics in contemporary Germany: a conceptual and empirical analysis, Regional Studies 40, 365–384. The importance of entrepreneurship for the development of national and regional economies is widely recognized. Although politicians in Germany are aware of entrepreneurship, their practices cannot rely on a generally accepted theory of entrepreneurship. The paper develops a holistic conceptualization of regional entrepreneurship dynamics and investigates empirically determinants of start-up activities and new business success in selected German regions. It uses two primary data sets explicitly designed to analyse regional entrepreneurship dynamics in contemporary Germany. The research project ‘Regional Entrepreneurship Monitor’ focuses on determinants of start-up activities in the pre-entry phase of entrepreneurial processes, while the ‘New Firm Survey’ examines factors influencing post-entry firm success. The paper suggests holistic approaches in entrepreneurship research are necessary, because entrepreneur-associated factors, characteristics of the newly founded firm and the geographical environment influence entrepreneurial processes. These determinants can have direct or indirect influences on entrepreneurial processes. The results suggest that politicians and policy-makers need to pay special attention to entrepreneurial attitudes and behaviours if they wish to boost regional entrepreneurship dynamics in Germany. Dinámicas regionales para el empresariado Actividades de inicio Éxito de nuevas empresas Determinantes Alemania [ABSTRACT FROM AUTHOR]

The EEG and MUA (multiple unit activity) of mesencephalic reticular formation (MRF), area hypothalami posterior (PH), and area hypothalami anterior (AH) were studied in chronically implanted freely moving cats. The effects of thyrotropin-releasing hormone (TRH) and some antidepressant agents were tested on neuronal activity. Desipramine and imipramine resulted in a dose-dependent decline of MUA of all structures with the most significant decrease of activity in PH. A single injection of TRH resulted in slight or moderate gross behavioral changes and vegetative excitation lasting for 30-50 min with variable MUA levels. In the course of repetitive TRH treatment on consecutive days the gross behavioral changes and the vegetative symptoms failed to develop by the 3rd or 4th day. By that time the MUA changes of PH and MRF showed similar characteristics in response to TRH administration which was observed following the injection of desipramine and imipramine. The drugs, except for TRH, induced a suppression of paradoxical sleep cycles. [ABSTRACT FROM AUTHOR]

Multiple unit activity (MUA) of brain stem, hypothalamic and limbic structures was studied during habituation to a novel environment and circadian rhythm in chronically implanted freely moving rats. MUA was analysed in the mesencephalic reticular formation (MRF), area hypothalami posterior (PH), basal nuclear group of amygdala (AMY), area septalis (SEPT), dorsal hippocampus (HIPP) and area hypothalami anterior (AH). It was found that in the novel environment MUA of all subcortical structures increased to a high level. During habituation MUA in each phase of wakefulness-sleep cycle decreased to stable low level both in brain stem and forebrain structures. Gradual decrease in MUA was characteristic to MRF, and a sharp decrease occured in AH and AMY. The environmental habituation proved to be a long lasting process in rat. During all phases of wakefulness-sleep cycle activity was significantly higher in the light period than in the dark, and MUA base level showed circadian variation both in brainstem and limbic structures. Close correlation was found between the actual MUA level and responsiveness to various sensory modalities both during habituation and circadian rhythm. The higher the MUA level, the higher the responsiveness, and a fall in activity was accompanied by decreased neuronal responsiveness. [ABSTRACT FROM AUTHOR]

The worldwide importance of crop production is undisputed due to its function for basic nutrition of billions of people. Yet, the emergence of global forces implies severe consequences for the organization of crop value chains. These forces particularly include processes of liberalization and deregulation, the dominance of large retail groups as well as ever-changing consumer demands, leading to continuous reconfigurations of crop value chains. Based on a literature review, this paper aims at thematically 'organizing' and differentiating the key findings of relevant empirical studies on global crop value chains, with a particular focus on South-North relations. Thereby, current shifts and challenges are identified and analysed with special attention paid to spatio-relational dimensions. The spatial perspective is important since crop value chains both shape and are shaped by specific geographical settings which is, among others, considered in the growing literature on food geographies. Overall, we could extract three strands of literature on global crop value chains: the integration of smallholders; the role of food standards; and the effect of 'hidden' dynamics. These issues especially reveal the interdependencies between the Global South and the Global North as a crucial feature of contemporary crop production and distribution systems. These are A further outcome of the literature analysis is the derivation of suggestions regarding future research and areas of needed progress. [ABSTRACT FROM AUTHOR]