Drivers of successful transitions to new activities by farmers

Farmers and horticulturalists need to change their production methods to achieve a more sustainable agricultural production system. The goal of this project is to understand which farmers successfully adapt their product and/ or production methods. This project diverts from adoption and transition models that are common in agricultural literature and explores and contributes to the growing body of literature on entrepreneurship

Entrepreneurial Proclivity and the Performance of Farms: The Cases of Dutch and Slovenian Farmers

Farms are advised to be entrepreneurial, but empirical research showing that an entrepreneurial proclivity (EP) of farmers results in better performance is scant. This research will test empirically whether an EP contributes to the performance of farms. We provide a model with hypotheses about the relationship between EP and performance, which is tested for a sample of Dutch and Slovenian farmers. We find that EP has a universal positive influence on performance and performance expectations of farmers in The Netherlands and in Slovenia. The influence of the underlying dimension of EP, i.e. innovativeness, proactiveness and risk taking, on performance are mixed and context specific.Entrepreneurship, innovativeness, proactiveness, Productivity Analysis,

Entrepreneurial Proclivity, Market Orientation and Performance of Dutch Farmers and Horticultural growers

Farm Management,

Marketing Cooperatives' Re-engineering: Influences among Organizational Attributes, Strategic Attributes & Performance

ABSTRACT In this paper we expand the agribusiness co-op literature by studying the re-engineering process of marketing cooperatives (co-ops). More specifically we discuss and empirically examine organizational innovations adopted by marketing co-ops in Greece. We hypothesize three types of relationships: a) the influence of organizational (i.e., collective ownership, control and cost/benefit allocation) and strategic (i.e., market and brand orientation) attributes on organizational performance; b) the influence of organizational attributes on market orientation; and c) influences among strategic attributes. Data for this study were collected from a largescale survey with CEOs of marketing co-op in Greece. The results show that strategic attributes have a much greater influence on organizational performance than organizational attributes have, as only a few among the examined elements of re-engineered attributes have a (marginal) positive influence on performance. This result raises the question whether the influence of the re-engineered structures on performance has been over-emphasized in the co-op literature. Moreover, the results demonstrate positive influences among the strategic attributes of co-ops, contrary to the non-significant results of organizational attributes on market orientation. This may imply that organizational attributes do not seem to act as drivers or barriers to the adoption of strategic attributes, and, hence, reinforces the conclusion that emphasis in co-op theory and practice should also be also placed on the strategies and tactics that co-ops should adopt and implement in order to capture market benefits. Keywords: marketing cooperatives, attributes, organizational, strategic, performance, Greec

Scattering amplitudes of massive Nambu-Goldstone bosons

Massive Nambu-Goldstone (mNG) bosons are quasiparticles whose gap is determined exactly by symmetry. They appear whenever a symmetry is broken spontaneously in the ground state of a quantum many-body system, and at the same time explicitly by the system's chemical potential. In this paper, we revisit mNG bosons and show that apart from their gap, symmetry also protects their scattering amplitudes. Just like for ordinary gapless NG bosons, the scattering amplitudes of mNG bosons vanish in the long-wavelength limit. Unlike for gapless NG bosons, this statement holds for any scattering process involving one or more external mNG states; there are no kinematic singularities associated with the radiation of a soft mNG boson from an on-shell initial or final state.Comment: 12 pages; v2: added discussion of the double-soft limit in response to the referee report; matches version published in PR

De succesfactoren voor een geslaagde productinnovatie : de theorie gekoppeld aan een praktijkvoorbeeld

Productinnovatie is belangrijk voor de marketing van tuinbouwbedrijven. Productinnovatie is kostbaar en risicovol maar gelukkig zijn succesfactoren voor nieuwe producten bekend: een superieur, innovatief product dat gebruik maakt van technologische en marketingvaardigheden van het bedrijf en dat tot stand komt in een marktgericht ontwikkelingsproces. Hoewel succesfactoren het succes van een productinnovatie goed voorspellen, circuleren er allerlei smoezen om de succesfactoren niet toe te passen. De ervaringen van Boomkwekerij Van der Starre laten zien dat succesvolle productinnovatie mogelijk is wanneer de succesfactoren worden toegepas

From laggard to leader: explaining offshore wind developments in the UK

Offshore wind technology has recently undergone rapid deployment in the UK. And yet, up until recently, the UK was considered a laggard in terms of deploying renewable energy. How can this burst of offshore wind activity be explained? An economic analysis would seek signs for newfound competitiveness for offshore wind in energy markets. A policy analysis would highlight renewable energy policy developments and assess their contribution to economic prospects of offshore wind. However, neither perspective sheds sufficient light on the advocacy of the actors involved in the development and deployment of the technology. Without an account of technology politics it is hard to explain continuing policy support despite rising costs. By analysing the actor networks and narratives underpinning policy support for offshore wind, we explain how a fairly effective protective space was constructed through the enroling of key political and economic interests

Accurate tube wall temperature by coupled simulation of a steam cracker convection section

C

The role of policy in shielding, nurturing and enabling offshore wind in The Netherlands (1973–2013)

It is widely acknowledged that many renewable energy technologies cannot (yet) compete with incumbent (fossil fuel) options e.g. in terms of price. Transitions literature argues that sustainable innovations can nevertheless break out of their ‘niches’ if properly shielded, nurtured and empowered. Most studies using this perspective have focused on how innovation champions engage in shielding, nurturing and empowering (SNE) activities: none have so far focused specifically on the role that policy plays in relation to these three processes. This paper therefore aims to analyze the way in which policy constrains and enables the shielding, nurturing and empowering of renewable energy innovations. To do so, it presents a qualitative review of the development of offshore wind power (OWP) in The Netherlands over the past four decades. Based on interpretation of a wide variety of written sources (academic histories, reports, policy documents, parliamentary debate transcripts, news media) and nine semi-structured interviews, it discerns six periods of relative stability in the history of Dutch offshore wind. It then analyzes the effects of various policies on the shielding, nurturing and empowering of offshore wind in these periods. The paper contributes to transitions literature (1) by providing an analysis of how policies can enable and constrain the shielding, nurturing and empowering of renewable energy innovations, and (2) by bringing together, for the first time, fragmented accounts of the surprisingly long history of Dutch offshore wind development and implementation. Both contributions are timely, given the recent reprioritization of OWP on the Dutch policy agenda