Beyond ‘chalk and talk’: educator perspectives on design immersion programs for rural and regional schools

Twenty-first century education needs to be re-envisioned to equip citizens for a lifetime of rapid change and complexity. Design has been proposed as a pedagogical framework that develops the required foundational literacies, competencies and character qualities citizens need to thrive in this new creative knowledge economy. However, widespread adoption will require systemic transformation of practice, and recognition of the value of formal and informal ‘connected’ learning environments and experiences. This paper explores the potential of design immersion outreach efforts in fostering design capabilities and building educators’ pedagogical repertoires to support twenty-first century learning. It documents educators’ experiences of goDesign, the first three-day place-based travelling design immersion experience for regional and rural Australian high school students and teachers. Drawing on observational data, and in-depth interviews with participating principals (n?=?3) and teachers (n?=?14) from six regional schools, educators believed goDesign provided new ideas for their classroom practice. They felt it broadened horizons for both themselves and their students, through: personally inspiring experiences and career aspiration; engagement in design thinking process, skills and mindset; and providing a valuable opportunity for community building. As educators in regional and rural areas often experience geographical, social and professional isolation, this paper argues that place-based informal design immersion programs might be an innovative way to engage and educate both students and teachers with design, thus building the competencies required for successful twenty-first century futures.

     

The evolution of hog production and potential sources for future growth in China

Following reforms to the market, China’s hog industry has developed rapidly, however, with social and economic transitions, China’s hog industry is facing challenges which might restrict long-term growth in production. This paper analyzes the changes in regional scale, organization, input factors, and technological progress for China’s hog production over the last few decades. The paper seeks to reveal the sources of hog production growth and provide some suggestions for future development of the hog industry. To achieve these aims, the paper uses stochastic frontier production functions and the Malmquist index to measure total factor productivity (TFP) in the hog industry and decompose TFP into technical efficiency; technological progress; scale efficiency; and allocative efficiency using data for 25 provinces from 1980 to 2008. The results show firstly that; the TFP of hog production increased by 64.3% from 1980 to 2008, and allocative efficiency and scale efficiency improvements played a key role in this TFP growth. In contrast, technical efficiency and technical progress have changed little over this period. Secondly, TFP’s contribution to output was 39.7%, it being less than that of factor inputs to output. Thirdly, the results suggest that the growth of China’s pork production depends mostly on the increase in the quantity of factor inputs, especially feed. As a consequence, the key to ensuring long-term and stable development of China’s hog production would seem to involve focusing on enhancing total factor productivity and changing the pattern of production growth.     

VaR without correlations for portfolios of derivative securities

We propose filtering historical simulation by GARCH processes to model the future distribution of assets and swap values. Options’ price changes are computed by full reevaluation on the changing prices of underlying assets. Our methodology takes implicitly into account assets’ correlations without restricting their values over time or computing them explicitly. VaR values for portfolios of derivative securities are obtained without linearising them. Historical simulation assigns equal probability to past returns, neglecting current market conditions. Our methodology is a refinement of historical simulation. © 1999 John Wiley & Sons, Inc. Jrl Fut Mark 19: 583–602, 1999     

Integrating the environmental and economic consequences of converting to organic agriculture: evidence from a case study

In the current debate about the future of food quality, the merits of organic agriculture are frequently championed, but few studies have sought to integrate the changes in soil conditions, biodiversity and socio-economic welfare linked to the conversion from non-organic to organic production. This article aims to undertake this approach with respect to one case study. Its conclusions may not be representative for all organic conversions, but the findings are of relevance at a time of debate over changing patterns of subsidies and other incentives in agricultural policy. The study showed that there were demonstrable differences in overall environmental conditions in the comparison of organic and non-organic farming, with field evidence of increased species diversity, and an eventual improvement in the profitability of the organic farming regime. The broad conclusion is that there are definite environmental and economic advantages arising from organic agriculture that are not fully reflected in the present pattern of agricultural incentives. The study also showed that variations in farm management practice strongly influence the notion of on-farm and off-farm environmental consequences. The implications of these findings for the future of sustainable agriculture and for interdisciplinary science are also discussed.     

A regional model of endogenous growth without scale assumptions

In this paper we model growth using a scale-neutral approach to innovation allowing differences between regions to emerge due to regional mechanisms. In this model, agglomeration is growth enhancing as the scale effect for innovation arises from greater access to knowledge rather than any assumed scale effects in growth-modelling techniques. Furthermore, entrepreneurs are assumed to choose the location of firms endogenously so as to minimize the costs of innovation, transport and living. The effects of such mechanisms are such that any policies that increase knowledge spillovers between locations will enhance growth and equality, but may be destabilizing for agglomeration.