Free to grow? Assessing the barriers faced by actual and potential high growth firms

A small proportion of high growth firms create the majority of all new jobs. For policymakers, it is important to know (1) the obstacles faced by high growth firms are and (2) the obstacles faced by firms with the potential to achieve high growth, but which are yet to achieve this. This investigates these issues using the UK Small Business Survey. It highlights six areas where high growth firms experience problems: obtaining finance, cash flow, recruiting staff, skill shortages, managerial skills and the availability and cost of premises. Potential high growth firms argue that cash flow, recruiting, the availability and cost of premises and managerial skills are important. They also argue that competition is a significant obstacle to their growth, perhaps implying their business strategy is problematic.High growth firms; Barriers; gazelles; SMEs; Firm growth

The influence of urban form on car travel following residential relocation : a current and retrospective study in Scottish urban areas

Spatial planning and spatial policy continues to be used as a tool to bring about changes in travel behaviour. Policy suggests that by creating particular urban forms, demand for travel by car can be reduced. This paper uses data collected in 2006 from 280 households in Glasgow and Edinburgh to analyse the relationships between urban form and vehicle miles driven, with an emphasis on those who had recently relocated. Population densities, housing type, distance to urban centre and measures of mix were collected for the current residential location and previous, for those who had relocated in the previous three years. An ordinal regression model of change in urban form showed significant associations with reported change in miles driven, although the effect was small compared with the effects of socio-economic factors and car ownership. While the results give some weight to intensification as a policy to bring about a reduction in average distance driven, there may be an increase in distance driven in the intensified area. Whether or not such intensification can be enacted against a backdrop of preferences towards suburban, car oriented living is contentious. As such, this study calls into question the use of planning policy as a means to reduce car use in Scottish cities

Promoting recovery and addressing stigma: mental health awareness through community development in a low-income area

One in four Scots will experience mental ill-health at some point in their lives, with increased prevalence in low-income communities. The associated stigma increases the negative impact on an individual's life. This paper outlines the development of a local anti-stigma programme that can be replicated in other areas, and presents key findings from the evaluation. This innovative model, which promotes recovery and addresses stigma, draws on a broad coalition of community support, and enables service users to lead its design and delivery. The paper argues that local initiatives, when complemented by a national programme, can achieve a positive additional impact on attitudes and behaviours; that multiple and flexible approaches are needed for different target groups; that the personal narrative about recovery has a particularly strong impact on participants; and that it may be desirable to tackle stigma in the context of addressing positive mental health. Refinements to the model are discussed

Efficiency and formalism of quantum games

We pursue a general theory of quantum games. We show that quantum games are more efficient than classical games, and provide a saturated upper bound for this efficiency. We demonstrate that the set of finite classical games is a strict subset of the set of finite quantum games. We also deduce the quantum version of the Minimax Theorem and the Nash Equilibrium Theorem.Comment: 10 pages. Efficiency is explicitly defined. More discussion on the connection of quantum and classical game

Detecting highly overlapping community structure by greedy clique expansion

In complex networks it is common for each node to belong to several communities, implying a highly overlapping community structure. Recent advances in benchmarking indicate that existing community assignment algorithms that are capable of detecting overlapping communities perform well only when the extent of community overlap is kept to modest levels. To overcome this limitation, we introduce a new community assignment algorithm called Greedy Clique Expansion (GCE). The algorithm identifies distinct cliques as seeds and expands these seeds by greedily optimizing a local fitness function. We perform extensive benchmarks on synthetic data to demonstrate that GCE's good performance is robust across diverse graph topologies. Significantly, GCE is the only algorithm to perform well on these synthetic graphs, in which every node belongs to multiple communities. Furthermore, when put to the task of identifying functional modules in protein interaction data, and college dorm assignments in Facebook friendship data, we find that GCE performs competitively.Comment: 10 pages, 7 Figures. Implementation source and binaries available at http://sites.google.com/site/greedycliqueexpansion

Three challenges facing the Northern Powerhouse

Posted by Neil Lee, Department of Geography & Environment and SERC The Northern Powerhouse is the government's latest attempt to spatially rebalance the economy. The idea is that by joining the cities of the north into a single functional agglomeration, they would have the scale and critical mass to counterbalance London. The optimistic goal is to ‘reverse the North-South divide'. The agenda has achieved public recognition far above other economic development policies, although this is a pretty low bar