The Financial Entanglements of Local Energy Projects

There is currently an expansion of local energy initiatives, underpinned by the desire to reduce energy-related carbon emissions and in recognition of the importance of the local arena to achieving such change. Much of the research on these initiatives has been framed by a conventional economic approach, identifying barriers, drivers and incentives to explain their emergence (or not). Here a new economic sociological approach is taken which sees markets as socio-materially constructed and points to the importance of tracing exchange flows and determining modalities of valuation for such exchanges. Artefacts or market devices are seen to play a particular role in connecting actors and technologies within coordinating institutional arrangements and offer the potential for making innovative projects conventional. These aspects are explored in four international case-studies from Wales, Sweden, Germany and USA, mapping relations, identifying exchange flows, pinpointing how artefacts coordinate and showing the multiple modalities of valuation involved in each case. Conclusions concerning the importance of negotiation against a market backdrop and rendering exchange flows more certain are drawn

Planning in a technological society: discussing the London Plan

The sustainable development agenda has influenced the focus of urban planning policy in many countries and localities; this article argues that its influence has been much more widespread, affecting not just the content of planning but also its discourses and practices. This reflects more profound shifts within society — shifts that put the governance of technology firmly centre‐place. Using a case study of the London Plan (the spatial development strategy for London), the discussion considers how recent debates on the Plan are being shaped by the need to focus on technological issues. Using Barry's and Feenberg's explorations of the technological society, the analysis identifies key features such as the contestation of evidence and expertise, the focus on technical details and the resultant reframing of policy discourse. The article concludes with suggestions as to the ways in which planning may change in the future

The contribution of ecological footprinting to planning policy development: using REAP to evaluate policies for sustainable housing construction

The complexity of the sustainable-development policy goal is such that policy makers are searching for tools to enable them to evaluate and develop policy directions. To date, ecological footprinting has been used mainly for raising awareness of environmental impacts but it also has considerable potential as a policy tool, enabling policy makers in their strategic work. The paper presents an application of a specific ecological footprinting development, the REAP (Resource and Energy Analysis Programme) tool, to a current policy issue, the promotion of sustainable construction. Using the London Plan of the Greater London Authority as a case study, it considers the strengths and weaknesses of this approach and how it can contribute to policy development

Systems of cubic forms in many variables

We consider a system of $R$ cubic forms in $n$ variables, with integer coefficients, which define a smooth complete intersection in projective space. Provided $n\geq 25R$, we prove an asymptotic formula for the number of integer points in an expanding box at which these forms simultaneously vanish. In particular we can handle systems of forms in $O(R)$ variables, previous work having required that $n \gg R^2$. One conjectures that $n \geq 6R+1$ should be sufficient. We reduce the problem to an upper bound for the number of solutions to a certain auxiliary inequality. To prove this bound we adapt a method of Davenport.Comment: 23 pages, submitte

Promoting sustainable construction: European and British networks at the knowledge-policy interface

The responsibility of builders, developers, planners, architects and policy-makers to promote more sustainable urban environments and buildings is consistently prioritized in nascent European, national and local planning strategies. Yet what counts as ‘sustainable construction’ varies by issue, sector and policy mandate. Proponents of sustainable construction might promote technological shifts in terms of materials, energy use and waste reduction, or they might encourage cultural and behavioural adaptations to how society views, uses and plans its built environment. This paper examines this problematic bifurcation of sustainable construction into two exclusive agendas: the construction technology agenda and the urban sustainability planning agenda, each constituted by distinct policy and sector-based networks. It is argued that the orientation to detail in the construction technology agenda operates at odds with the holistic process orientation of the broader urban sustainability agenda, thus complicating the effective translation or co-generation of sustainable construction knowledge between the two networks. The lack of integration between these two sets of networks should be cause for concern, yet appears to be largely overlooked in mainstream policy processes

Quadratic forms and systems of forms in many variables

Let $F_1,\dotsc,F_R$ be quadratic forms with integer coefficients in $n$ variables. When $n\geq 9R$ and the variety $V(F_1,\dotsc,F_R)$ is a smooth complete intersection, we prove an asymptotic formula for the number of integer points in an expanding box at which these forms simultaneously vanish, which in particular implies the Hasse principle for $V(F_1,\dotsc,F_R)$. Previous work in this direction required $n$ to grow at least quadratically with $R$. We give a similar result for $R$ forms of degree $d$, conditional on an upper bound for the number of solutions to an auxiliary inequality. In principle this result may apply as soon as $n> d2^dR$. In the case that $d\geq 3$, several strategies are available to prove the necessary upper bound for the auxiliary inequality. In a forthcoming paper we use these ideas to apply the circle method to nonsingular systems of forms with real coefficients.Comment: 29 pages, in revie

The Halloween Indicator is More a Treat than a Trick

This paper uses stock market returns (2007-2015) and confirms the existence of Halloween effect anomaly after the 2008 financial crisis. Findings suggest that the Halloween effect can still be observed in 34 out of the 35 countries. A more aggressive trading strategy of shorting the market during summer and taking a long position in winter yields 4.77% more than the buy-and-hold strategy. A new explanation is offered for the persistence of the Halloween effect. A positive feedback between investors’ belief and behavior causes the market to underperform in the summer and recover in the winter, resulting in a self-fulfilling prophecy