A Schumpeterian Renaissance?

In the last few decades of the twentieth century, the attention paid to technical innovation in the economics and management literature and in social science generally has justified some such description as "a Schumpeterian renaissance". This article, in justifying the concept of such a renaissance, distinguishes in particular Schumpeter's work on the clustering of innovations and technological revolutions as a major contribution to contemporary theory. As always during his lifetime, the relevance of these ideas to his work on Business Cycles remains controversial but the debate on this topic has certainly enlivened the renaissance of neo-Schumpeterian economic theory and research.innovation clusters, technological revolution, Schumpeter, business cycles

Species-specific effects of elevated ozone on wetland plants and decomposition processes

Seven species from two contrasting wetlands, an upland bog and a lowland rich fen in North Wales, UK, were exposed to elevated ozone (150 ppb for 5 days and 20 ppb for 2 days per week) or low ozone (20 ppb) for four weeks in solardomes. The rich fen species were: Molinia caerulea, Juncus subnodulosus, Potentilla erecta and Hydrocotyle vulgaris and the bog species were: Carex echinata, Potentilla erecta and Festuca rubra. Senescence significantly increased under elevated ozone in all seven species but only Molinia caerulea showed a reduction in biomass under elevated ozone. Decomposition rates of plants exposed to elevated ozone, as measured by carbon dioxide efflux from dried plant material inoculated with peat slurry, increased for Potentilla erecta with higher hydrolytic enzyme activities. In contrast, a decrease in enzyme activities and a non-significant decrease in carbon dioxide efflux occurred in the grasses, sedge and rush species. Short-term, episodic ozone exposure increased senescence and changed decomposition processes in wetland plant species

Developing science, technology and innovation indicators: what we can learn from the past

The science-technology-innovation system is one that is continuously and rapidly evolving. The dramatic growth over the last twenty years in the use of science, technology and innovation (STI) indicators appears first and foremost the result of a combination between on the one hand the easiness of computerized access to an increasing number of measures of STI and on the other hand the interest in a growing number of public policy and private business circles in such indicators as might be expected in societies which increasingly use organised science and technology to achieve a wide variety of social and economic objectives and in which business competition is increasingly based on innovation. As highlighted on the basis of 40 years of indicators work, frontiers and characteristics that were important last century may well no longer be so relevant today and indeed may even be positively misleading.Technological Change, Science and Technology, Innovation, Statistical Indicators, Measurement of Economic Growth, Policy Making

Australian teachers and the learning environment: an analysis of teacher response to TALIS 2013

Abstract: The OECD Teaching and Learning International Survey (TALIS) is the first international survey programme to focus on the learning environment and the working conditions of teachers in schools. The overarching aim of TALIS is to provide robust, policy relevant indicators and analysis on teachers and the learning environment for an international audience. It aims to provide an opportunity to examine best practice in education systems around the world, to allow countries to identify other education systems facing similar challenges to their own and to learn from other policy approaches. TALIS provides internationally comparable information in the areas of teacher demographic characteristics, school leadership, teacher professional development, systems of feedback and appraisals for the teaching workforce, school effectiveness, and teacher practices and beliefs. As was the case for the 2008 cycle of TALIS, the Department of Education (formerly DEEWR) again commissioned the Australian Council for Educational Research (ACER) to oversee and conduct the implementation of TALIS 2013 in Australia. In Australia, over 2000 teachers and 149 principals in 149 schools comprised the ISCED 2 sample. In the Australian context, ISCED 2 teachers are defined as teachers of students in lower secondary education or, more specifically, teachers of students in Years 7, 8, 9 or 10

Impacts of elevated atmospheric ozone on peatland below-ground DOC characteristics

Rising concentrations of tropospheric ozone are having detrimental impacts on the growth of crop and forest species and some studies have reported inhibition of the allocation of carbon below ground. The effects of ozone on peatland ecosystems have received relatively little attention, despite their importance within the global carbon cycle. During this study, cores from a Welsh minerotrophic fen and ombrotrophic bog were exposed to four ambient/ elevated ozone concentration regimes representing current and predicted 2050 profiles. A large and significant reduction in the concentration of porewater dissolved organic carbon (DOC) was recorded in the fen cores exposed to the elevated ozone concentrations (up to −55%), with a concurrent shift to a higher molecularweight of the remaining soil carbon. No effects of ozone on DOC concentrations or characteristics were recorded for the bog cores. The data suggest higher ozone sensitivity of plants growing in the fen-type peatland, that the impacts on the vegetation may affect soil carbon characteristics through a reduction in root exudates and that theremay have been a shift in the source of substrate DOC for microbial consumption from vegetation exudates to native soil carbon. Theremay also have been a direct effect of ozone molecules reacting with soil organic matter after being transported into the soil through the aerenchyma tissue of the overlying vegetation. These qualitative changes in the soil carbon in response to elevated ozone may have important implications for carbon cycling in peatland ecosystems, and therefore climate change

The greenhouse gas (GHG) emissions associated with aquatic carbon removal during drinking water treatment

Peatlands and other terrestrial ecosystems export large amounts of dissolved organic carbon (DOC) to freshwater ecosystems. In catchments used for supplying drinking water, water treatment works (WTWs) can remove large quantities of this organic matter, and can therefore play a unique modifying role in DOC processing and associated greenhouse gas (GHG) emissions within the fluvial system. During this study we quantified the GHG emissions due to processes associated with carbon (C) removal during water treatment at four contrasting WTWs in the UK. Our results demonstrate that the removal of DOC from raw water supplies via coagulation, leading to the formation of sludge, usually makes it less susceptible to short-term oxidation when compared to DOC remaining in the fluvial system. Although this could be considered a means of reducing CO2 emissions from waterborne carbon, the current practise of land spreading of sludge is unlikely to represent a long-term C sink and therefore water treatment probably only delays the rate at which fluvial C re-enters the atmosphere. Furthermore, we estimate that indirect CO2 missions resulting from electricity use during water treatment, together with the use of chemicals and CO2 degassing from the water during treatment, far outweigh any potential CO2 reductions associated with DOC removal. Thus, the post-treatment handling of sludge has the potential to mitigate, but not to negate, GHG emissions associated with water treatment processes

Motivating Employee Owners in ESOP Firms: Human Resource Policies and Company Performance

What enables some employee ownership firms to overcome the free rider problem andmotivate employees to improve performance? This study analyzes the role of humanresource policies in the performance of employee ownership companies, using employeesurvey data from 14 companies and a national sample of employee-owners. Between-firmcomparisons of 11 ESOP firms show that an index of human resource policies, nominallycontrolled by management, is positively related to employee reports of co-workerperformance and other good workplace outcomes (including perceptions of fairness, goodsupervision, and worker input and influence). Within-firm comparisons in three ESOP firms,and exploratory results from a national survey, show that employee-owners who participatein employee involvement committees are more likely to exert peer pressure on shirking coworkers.We conclude that an understanding of how and when employee ownership workssuccessfully requires a three-pronged analysis of: 1) the incentives that ownership gives; 2)the participative mechanisms available to workers to act on those incentives; and 3) thecorporate culture which battles against tendencies to free ride.human resources, industrial relations, employee ownership