The knowledge regions in the enlarged Europe

Since the Lisbon agenda in 2000, Europe stated the goal to become the most advanced knowledge economy in the world relying specifically on the increase and strengthen of its human capital and technological endowments. However, given the presence of localized externalities in the knowledge accumulation process, this policy may produce distortive and unwanted consequences at the territorial level reinforcing the existing high inequalities among regions. Another crucial feature to be considered is the recent enlargement process of the European Union which has brought on stage new players characterized by a low average level of knowledge activity accompanied by a huge degree of internal territorial disparity. The aim of this paper is to identify the “knowledge regions†in Europe and to examine their main territorial features. To this aim we first build, for 287 regions belonging to 31 European countries, a comprehensive picture of the two variables - human capital and technological activity - which constitute the main pillars of the knowledge economy. For each of these two variables we construct several indicators examining their spatial distribution across the European regions. Further, we compute two synthetic indicators for human capital and technology and, on the basis of these two dimensions, we finally identify the knowledge regions.

Strong coupling of ionising transitions

We demonstrate that a ionising transition can be strongly coupled to a photonic resonance. The strong coupling manifests itself with the appearance of a narrow optically active resonance below the ionisation threshold. Such a resonance is due to electrons transitioning into a novel bound state created by the collective coupling of the electron gas with the vacuum field of the photonic resonator. Applying our theory to the case of bound-to-continuum transitions in microcavity-embedded doped quantum wells, we show how those strong-coupling features can be exploited as a novel knob to tune both optical and electronic properties of semiconductor heterostructures.Comment: 10 pages, 7 figure

Design of mid-IR and THz quantum cascade laser cavities with complete TM photonic bandgap

We present the design of mid-infrared and THz quantum cascade laser cavities formed from planar photonic crystals with a complete in-plane photonic bandgap. The design is based on a honeycomb lattice, and achieves a full in-plane photonic gap for transverse-magnetic polarized light while preserving a connected pattern for efficient electrical injection. Candidate defects modes for lasing are identified. This lattice is then used as a model system to demonstrate a novel effect: under certain conditions - that are typically satisfied in the THz range - a complete photonic gap can be obtained by the sole patterning of the top metal contact. This possibility greatly reduces the required fabrication complexity and avoids potential damage of the semiconductor active region.Comment: 14 pages, 14 figure

On Firm Growth and Innovation. Some new empirical perspectives using French CIS (1992-2004)

In the paper we wish to examine if the firms that innovate know a higher growth than the firm that do not. We use diverse waves of CIS for the French industries over the period 1992- 2004 and carry out different models and new econometric methods (quantile regression). Our main findings are that innovative firms produce more growth than non innovative firms. The estimates show that the results are robust to the different types of models that we have implemented. Process innovators are more productive in terms of growth than product innovators when OLS and Random effects models are used. The reverse is true for Fix effect model and quantile regression. In the three growth equations estimated by GMM the coefficients related to innovation product are always higher. Our study does not give definitive results with respect to the magnitude of the effects of the type of innovation on firm growth.Innovation, process and product, firm growth, CIS

Both natural selection and isolation by distance explain phenotypic divergence in bill size and body mass between South Australian little penguin colonies

This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.Morphological variation between populations of the same species can arise as a response to genetic variation, local environmental conditions, or a combination of both. In this study, I examined small-scale geographic variation in bill size and body mass in little penguins (Eudyptula minor) across five breeding colonies in South Australia separated by <150 km. To help understand patterns driving the differences, I investigated these variations in relation to environmental parameters (air temperature, sea surface temperature, and water depth) and geographic distances between the colonies. I found substantial morphological variation among the colonies for body mass and bill measurements (except bill length). Colonies further located from each other showed greater morphological divergence overall than adjacent colonies. In addition, phenotypic traits were somewhat correlated to environmental parameters. Birds at colonies surrounded by hotter sea surface temperatures were heavier with longer and larger bills. Birds with larger and longer bills were also found at colonies surrounded by shallower waters. Overall, the results suggest that both environmental factors (natural selection) and interpopulation distances (isolation by distance) are causes of phenotypic differentiation between South Australian little penguin colonies

Common Frameworks for Regional Competitiveness - Insights from a Number of Local Knowledge Economies

1. Aims of the paper: in this paper we analysed a number of European regions that in the last ten to fifteen years experienced a process of industrial reconversion moving from traditional sectors-based economies to knowledge economies. With the aim of shaping the transformation paths driving their competitiveness recovery, the analysis was conducted on two levels. First, we tried to identify the most relevant factors of competitiveness behind each region’s renewal process and combined them to shape a number of common trajectories of regional competitiveness. Secondly, we outlined a taxonomy of transformation paths followed by each of the territories under investigation in their development process towards a knowledge economy. Interestingly, all regional ‘success histories’ are strongly dependent on the presence of a tri-polar regional innovation system (RIS) ‘gluing’ firms, institutions and academia. 2. Factors and trajectories of regional competitiveness: Some of the factors of regional competitiveness identified in the analysis (exhaustively listed and described in the full paper) are entrepreneurial motivation, managerial skills, access to private and public financing, the presence of a local technical university. By combining the competitiveness factors specific to each regional ‘success history’, we were able to spot a number of trajectories of regional competitiveness : (i) the Nokia economies trajectory, (ii) the knowledge creation upon invitation trajectory and (iii) the Cambridge way trajectory. The first trajectory includes the Nordic regions of Tampere and Goteborg. The leading factors of development of these regions can be brought back to the successful development strategies of Ericsson and Nokia, in turn based on excellent managerial and organisational skills and a strong international orientation. The second trajectory of regional competitiveness refers to Ireland, Scotland and Wales, characterized by an ‘industrialisation upon invitation’ type of growth based on foreign direct investments. The policy of FDI attraction is largely supported by public incentives and owes its success to the leading role taken up by regional development agencies. The last trajectory of regional competitiveness relates to the high tech cluster of Cambridge (UK), emerged and developed essentially thanks to the active role of Cambridge University in nurturing the cluster with human capital of excellence and in allowing the faculty members to commercially exploit their skills and technical know how. The most interesting result of this part of the analysis is that the regions under scrutiny owe their virtuous process of competitiveness recovery to three sets of factors, each originating from one of the three territorial actors making up a regional innovation system – firms, institutions, university – so that behind each regional renewal history it is possible to recognize the presence and the ‘functioning’ of a RIS. 3. A taxonomy of regional transformation paths: Next, we classified the development dynamics of the regions investigated above along three paths of economic restructuring. The first path, here defined as the RIS into process, is typical of industrial clusters in engineering-based sectors such as plant engineering, specialised advanced machinery and shipbuilding. Here the relationship with the RIS is developed at a later stage of the cluster life, as the RIS originates in response to the presence of the cluster. This is the case of a number of regions under scrutiny (Baden-Württemberg and Brabant, for instance) where the regional innovation system was specifically designed to support and strengthen local existing industrial specializations. The second regional development path, typical of industrial clustering in science-based sectors such as genetics, IT and biotechnology, follows the opposite ‘direction’. Here the RIS is the main source of the cluster creation and the cluster develops from the regional innovation system by exploiting all the local resources in terms of cooperation and interaction with universities and local institutions. This is the case of regions such as Shannon and Cambridge (UK), which have followed a transformation process here defined as RIS from process, where the pre-existence of the RIS represents a key factor for the organization of a science-based industrial system. The third path may be viewed as the result of a combination between the two different base ‘entities’ described above. In fact, in regions such as Wales, Tampere, Göteborg and North Rhine – Westphalia, science-based clusters have developed from declining engineering-based sectors, passing through the formation of a RIS. In this respect, the transformation process can be defined as RIS through process. In this group of regions, the regional innovation system acted as catalyst for the local system transformation process, driving the regional competitive repositioning through the development of clusters of innovative and high tech firms. In this respect, the process of territorial transformation has taken place thanks to a ‘systemic effort’ and as a result of social interdependencies among territorial actors.

The implications of entrepreneurs’ previous experiences on using a scientific approach to decision making: evidence from a randomized control trial

This study aims to investigate if previous managerial or entrepreneurial experiences of entrepreneurs could moderate the use of a scientific approach to decision-making. To test this, we embedded a field experiment involving 132 real start-ups from Italy. We collected data on performances using phone calls for 64 weeks. Using econometrics analysis, we find that previous managerial or entrepreneurial experiences moderate the effect of this entrepreneurial decision-making approach on start-up performances, such as whether they decided to terminate their entrepreneurial idea, the number of pivots and the amount of revenue gained. The moderating effects differ according to the experiences possessed by entrepreneurs

Immunity of intersubband polaritons to inhomogeneous broadening

We demonstrate that intersubband (ISB) polaritons are robust to inhomogeneous effects originating from the presence of multiple quantum wells (MQWs). In a series of samples that exhibit mid-infrared ISB absorption transitions with broadenings varying by a factor of 5 (from 4 meV to 20meV), we have observed polariton linewidths always lying in the 4 - 7 meV range only. We have experimentally verified the dominantly inhomogeneous origin of the broadening of the ISB transition, and that the linewidth reduction effect of the polariton modes persists up to room-temperature. This immunity to inhomogeneous broadening is a direct consequence of the coupling of the large number of ISB oscillators to a single photonic mode. It is a precious tool to gauge the natural linewidth of the ISB plasmon , that is otherwise masked in such MQWs system , and is also beneficial in view of perspective applications such as intersubband polariton lasers